[Title 47 CFR ]
[Code of Federal Regulations (annual edition) - October 1, 2000 Edition]
[From the U.S. Government Printing Office]
[[Page i]]
47
Parts 70 to 79
Revised as of October 1, 2000
Telecommunication
Containing a Codification of documents
of general applicability and future effect
As of October 1, 2000
With Ancillaries
Published by
Office of the Federal Register
National Archives and Records
Administration
As a Special Edition of the Federal Register
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U.S. GOVERNMENT PRINTING OFFICE
WASHINGTON : 2000
For sale by U.S. Government Printing Office
Superintendent of Documents, Mail Stop: SSOP, Washington, DC 20402-9328
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Table of Contents
Page
Explanation................................................. v
Title 47:
Chapter I--Federal Communications Commission
(Continued) 3
Finding Aids:
Material Approved for Incorporation by Reference........ 787
Table of CFR Titles and Chapters........................ 789
Alphabetical List of Agencies Appearing in the CFR...... 807
Table of OMB Control Numbers............................ 817
List of CFR Sections Affected........................... 827
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----------------------------
Cite this Code: CFR
To cite the regulations in
this volume use title,
part and section number.
Thus, 47 CFR 73.1 refers
to title 47, part 73,
section 1.
----------------------------
[[Page v]]
EXPLANATION
The Code of Federal Regulations is a codification of the general and
permanent rules published in the Federal Register by the Executive
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Each volume of the Code is revised at least once each calendar year
and issued on a quarterly basis approximately as follows:
Title 1 through Title 16.................................as of January 1
Title 17 through Title 27..................................as of April 1
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OMB CONTROL NUMBERS
The Paperwork Reduction Act of 1980 (Pub. L. 96-511) requires
Federal agencies to display an OMB control number with their information
collection request.
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Many agencies have begun publishing numerous OMB
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Provisions that become obsolete before the revision date stated on
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What is a proper incorporation by reference? The Director of the
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approval is based are:
(a) The incorporation will substantially reduce the volume of
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(b) The matter incorporated is in fact available to the extent
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(c) The incorporating document is drafted and submitted for
publication in accordance with 1 CFR part 51.
Properly approved incorporations by reference in this volume are
listed in the Finding Aids at the end of this volume.
What if the material incorporated by reference cannot be found? If
you have any problem locating or obtaining a copy of material listed in
the Finding Aids of this volume as an approved incorporation by
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the revision dates of the 50 CFR titles.
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REPUBLICATION OF MATERIAL
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Raymond A. Mosley,
Director,
Office of the Federal Register.
October 1, 2000.
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THIS TITLE
Title 47--Telecommunication is composed of five volumes. The parts
in these volumes are arranged in the following order: Parts 0-19, parts
20-39, parts 40-69, parts 70-79, and part 80 to end, chapter I--Federal
Communications Commission. The last volume, part 80 to end, also
includes chapter II--Office of Science and Technology Policy and
National Security Council, and chapter III--National Telecommunications
and Information Administration, Department of Commerce. The contents of
these volumes represent all current regulations codified under this
title of the CFR as of October 1, 2000.
Part 73 contains a numerical designation of FM broadcast channels
(Sec. 73.201) and a table of FM allotments designated for use in
communities in the United States, its territories, and possessions
(Sec. 73.202). Part 73 also contains a numerical designation of
television channels (Sec. 73.603) and a table of allotments which
contain channels designated for the listed communities in the United
States, its territories, and possessions (Sec. 73.606).
The OMB control numbers for the Federal Communications Commission,
appear in Sec. 0.408 of chapter I. For the convenience of the user
Sec. 0.408 is reprinted in the Finding Aids section of the second
through fifth volumes.
A redesignation table appears in the Finding Aids section of the
volume containing part 80 to end.
For this volume, Ruth Reedy Green was Chief Editor. The Code of
Federal Regulations publication program is under the direction of
Frances D. McDonald, assisted by Alomha S. Morris.
[[Page x]]
[[Page 1]]
TITLE 47--TELECOMMUNICATION
(This book contains parts 70 to 79)
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Part
Chapter I--Federal Communications Commission (Continued).... 73
[[Page 3]]
CHAPTER I--FEDERAL COMMUNICATIONS
COMMISSION (Continued)
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SUBCHAPTER C--BROADCAST RADIO SERVICES
Part Page
70-72 [Reserved]
73 Radio broadcast services.................... 5
74 Experimental radio, auxiliary, special
broadcast and other program
distributional services................. 416
76 Multichannel video and cable television
service................................. 556
78 Cable television relay service.............. 744
79 Closed captioning and video description of
video programming....................... 773
Supplemental Publications:
Annual Reports of the Federal Communications Commission to Congress.
Federal Communications Commission Reports of Orders and Decision.
Communications Act of 1934 (with amendments and index thereto), Recap.
Version May 1989.
Miscellaneous Publications:
Broadcast Operator Handbook, 1976 edition.
[[Page 5]]
SUBCHAPTER C--BROADCAST RADIO SERVICES
PARTS 70-72 [RESERVED]
PART 73--RADIO BROADCAST SERVICES--Table of Contents
Subpart A--AM Broadcast Stations
Sec.
73.1 Scope.
73.14 AM broadcast definitions.
73.21 Classes of AM broadcast channels and stations.
73.23 AM broadcast station applications affected by international
agreements.
73.24 Broadcast facilities; showing required.
73.25 Clear channels; Class A, Class B and Class D stations.
73.26 Regional channels; Class B and Class D stations.
73.27 Local channels; Class C stations.
73.28 Assignment of stations to channels.
73.29 Class C stations on regional channels.
73.30 Petition for authorization of an allotment in the 1605-1705 kHz
band.
73.31 Rounding of nominal power specified on applications.
73.33 Antenna systems; showing required.
73.35 Calculation of improvement factors.
73.37 Applications for broadcast facilities, showing required.
73.44 AM transmission system emission limitations.
73.45 AM antenna systems.
73.49 AM transmission system fencing requirements.
73.51 Determining operating power.
73.53 Requirements for authorization of antenna monitors.
73.54 Antenna resistance and reactance measurements.
73.57 Remote reading antenna and common point ammeters.
73.58 Indicating instruments.
73.61 AM directional antenna field strength measurements.
73.62 Directional antenna system tolerances.
73.68 Sampling systems for antenna monitors.
73.69 Antenna monitors.
73.72 Operating during the experimental period.
73.88 Blanketing interference.
73.99 Presunrise service authorization (PSRA) and Postsunset service
authorization (PSSA).
73.127 Use of multiplex transmission.
73.128 AM stereophonic broadcasting.
73.132 Territorial exclusivity.
73.150 Directional antenna systems.
73.151 Field strength measurements to establish performance of
directional antennas.
73.152 Modification of directional antenna data.
73.153 Field strength measurements in support of applications or
evidence at hearings.
73.154 AM directional antenna partial proof of performance
measurements.
73.157 Antenna testing during daytime.
73.158 Directional antenna monitoring points.
73.160 Vertical plane radiation characteristics, f(
Subpart A--AM Broadcast Stations
Sec. 73.1 Scope.
This subpart contains those rules which apply exclusively to the AM
broadcast service and are in addition to those rules in Subpart H which
are common to all AM, FM and TV broadcast services, commercial and
noncommercial.
[47 FR 8587, Mar. 1, 1982]
Sec. 73.14 AM broadcast definitions.
AM broadcast band. The band of frequencies extending from 535 to
1705 kHz.
AM broadcast channel. The band of frequencies occupied by the
carrier and the upper and lower sidebands of an AM broadcast signal with
the carrier frequency at the center. Channels are designated by their
assigned carrier frequencies. The 117 carrier frequencies assigned to AM
broadcast stations begin at 540 kHz and progress in 10 kHz steps to 1700
kHz. (See Sec. 73.21 for the classification of AM broadcast channels).
AM broadcast station. A broadcast station licensed for the
dissemination of radio communications intended to be received by the
public and operated on a channel in the AM broadcast band.
Amplitude modulated stage. The radio-frequency stage to which the
modulator is coupled and in which the carrier wave is modulated in
accordance with the system of amplitude modulation and the
characteristics of the modulating wave.
Amplitude modulator stage. The last amplifier stage of the
modulating wave amplitude modulates a radio-frequency stage.
Antenna current. The radio-frequency current in the antenna with no
modulation.
Antenna input power. The product of the square of the antenna
current and the antenna resistance at the point where the current is
measured.
Antenna resistance. The total resistance of the transmitting antenna
system at the operating frequency and at the point at which the antenna
current is measured.
Auxiliary facility. An auxiliary facility is an AM antenna tower(s)
separate from the main facility's antenna tower(s), permanently
installed at the same site or at a different location, from which an AM
station may broadcast for short periods without prior Commission
authorization or notice to the Commission while the main facility is not
in operation (e.g., where tower work necessitates turning off the main
antenna or where lightning has caused damage to the main antenna or
transmission system) (See Sec. 73.1675).
Blanketing. The interference which is caused by the presence of an
AM broadcast signal of one volt per meter (V/m) or greater strengths in
the area adjacent to the antenna of the transmitting station. The 1 V/m
contour is referred to as the blanket contour and the area within this
contour is referred to as the blanket area.
Carrier-amplitude regulation (Carrier shift). The change in
amplitude of the carrier wave in an amplitude-modulated transmitter when
modulation is applied under conditions of symmetrical modulation.
Combined audio harmonics. The arithmetical sum of the amplitudes of
all the separate harmonic components. Root sum square harmonic readings
may be accepted under conditions prescribed by the FCC.
Critical directional antenna. An AM broadcast directional antenna
that is
[[Page 11]]
required, by the terms of a station authorization, to be operated with
the relative currents and phases within the antenna elements at closer
tolerances of deviation than those permitted under Sec. 73.62 and
observed with a high precision monitor capable of measuring these
parameters.
Critical hours. The two hour period immediately following local
sunrise and the two hour period immediately preceding local sunset.
Daytime. The period of time between local sunrise and local sunset.
Effective field; Effective field strength. The root-mean-square
(RMS) value of the inverse distance fields at a distance of 1 kilometer
from the antenna in all directions in the horizontal plane. The term
``field strength'' is synonymous with the term ``field intensity'' as
contained elsewhere in this Part.
Equipment performance measurements. The measurements performed to
determine the overall performance characteristics of a broadcast
transmission system from point of program origination at main studio to
sampling of signal as radiated. (See Sec. 73.1590)
Experimental period. the time between 12 midnight local time and
local sunrise, used by AM stations for tests, maintenance and
experimentation.
Frequency departure. The amount of variation of a carrier frequency
or center frequency from its assigned value.
Incidental phase modulation. The peak phase deviation (in radians)
resulting from the process of amplitude modulation.
Input power. Means the product of the direct voltage applied to the
last radio stage and the total direct current flowing to the last radio
stage, measured without modulation.
Intermittent service area. Means the area receiving service from the
groundwave of a broadcast station but beyond the primary service area
and subject to some interference and fading.
Last radio stage. The radio-frequency power amplifier stage which
supplies power to the antenna.
Left (or right) signal. The electrical output of a microphone or
combination of microphones placed so as to convey the intensity, time,
and location of sounds originated predominately to the listener's left
(or right) of the center of the performing area.
Left (or right) stereophonic channel. The left (or right) signal as
electrically reproduced in reception of AM stereophonic broadcasts.
Main channel. The band of audio frequencies from 50 to 10,000 Hz
which amplitude modulates the carrier.
Maximum percentage of modulation. The greatest percentage of
modulation that may be obtained by a transmitter without producing in
its output, harmonics of the modulating frequency in excess of those
permitted by these regulations. (See Sec. 73.1570)
Maximum rated carrier power. The maximum power at which the
transmitter can be operated satisfactorily and is determined by the
design of the transmitter and the type and number of vacuum tubes or
other amplifier devices used in the last radio stage.
Model I facility. A station operating in the 1605-1705 kHz band
featuring fulltime operation with stereo, competitive technical quality,
10 kW daytime power, 1 kW nighttime power, non-directional antenna (or a
simple directional antenna system), and separated by 400-800 km from
other co-channel stations.
Model II facility. A station operating in the 535-1605 kHz band
featuring fulltime operation, competitive technical quality, wide area
daytime coverage with nighttime coverage at least 15% of the daytime
coverage.
Nighttime. The period of time between local sunset and local
sunrise.
Nominal power. The antenna input power less any power loss through a
dissipative network and, for directional antennas, without consideration
of adjustments specified in paragraphs (b)(1) and (b)(2) of Sec. 73.51
of the rules. However, for AM broadcast applications granted or filed
before June 3, 1985, nominal power is specified in a system of
classifications which include the following values: 50 kW, 25 kW, 10 kW,
5 kW, 2.5 kW, 1 kW, 0.5 kW, and 0.25 kW. The specified nominal power for
any station in this group of stations will be retained until action is
taken on or after June 3, 1985, which involves a change in the technical
facilities of the station.
Percentage modulation (amplitude)
[[Page 12]]
In a positive direction:
M = MAX-C x 100
----------------
c
In a negative direction:
M = C-MIN x 100
---------------
c
Where:
M = Modulation level in percent.
MAX = Instantaneous maximum level of the modulated radio frequency
envelope.
MIN = Instantaneous minimum level of the modulated radio frequency
envelope.
C = (Carrier) level of radio frequency envelope without modulation.
Plate modulation. The modulation produced by introduction of the
modulating wave into the plate circuit of any tube in which the carrier
frequency wave is present.
Primary service area. Means the service area of a broadcast station
in which the groundwave is not subject to objectionable interference or
objectionable fading.
Proof of performance measurements or antenna proof of performance
measurements. The measurements of field strengths made to determine the
radiation pattern or characteristics of an AM directional antenna
system.
Secondary service area. Means the service area of a broadcast
station served by the skywave and not subject to objectionable
interference and in which the signal is subject to intermittent
variations in strength.
Stereophonic channel. The band of audio frequencies from 50 to
10,000 Hz containing the stereophonic information which modulates the
radio frequency carrier.
Stereophonic crosstalk. An undesired signal occurring in the main
channel from modulation of the stereophonic channel or that occurring in
the stereophonic channel from modulation of the main channel.
Stereophonic pilot tone. An audio tone of fixed or variable
frequency modulating the carrier during the transmission of stereophonic
programs.
Stereophonic separation. The ratio of the electrical signal caused
in the right (or left) stereophonic channel to the electrical signal
caused in the left (or right) stereophonic channel by the transmission
of only a right (or left) signal.
Sunrise and sunset. For each particular location and during any
particular month, the time of sunrise and sunset as specified in the
instrument of authorization (See Sec. 73.1209).
White area. The area or population which does not receive
interference-free primary service from an authorized AM station or does
not receive a signal strength of at least 1 mV/m from an authorized FM
station.
[47 FR 8587, Mar. 1, 1982, as amended at 47 FR 13164, Mar. 29, 1982; 47
FR 13812, Apr. 1, 1982; 50 FR 18821, May 2, 1985; 50 FR 47054, Nov. 14,
1985; 56 FR 64856, Dec. 12, 1991; 62 FR 51058, Sept. 30, 1997]
Sec. 73.21 Classes of AM broadcast channels and stations.
(a) Clear channel. A clear channel is one on which stations are
assigned to serve wide areas. These stations are protected from
objectionable interference within their primary service areas and,
depending on the class of station, their secondary service areas.
Stations operating on these channels are classified as follows:
(1) Class A station. A Class A station is an unlimited time station
that operates on a clear channel and is designed to render primary and
secondary service over an extended area and at relatively long distances
from its transmitter. Its primary service area is protected from
objectionable interference from other stations on the same and adjacent
channels, and its secondary service area is protected from interference
from other stations on the same channel. (See Sec. 73.182). The
operating power shall not be less than 10 kW nor more than 50 kW. (Also
see Sec. 73.25(a)).
(2) Class B station. A Class B station is an unlimited time station
which is designed to render service only over a primary service area.
Class B stations are authorized to operate with a minimum power of 0.25
kW (or, if less than 0.25 kW, an equivalent RMS antenna field of at
least 141 mV/m at 1 km) and a maximum power of 50 kW, or 10 kW for
stations that are authorized to operate in the 1605-1705 kHz band.
(3) Class D station. A Class D station operates either daytime,
limited time
[[Page 13]]
or unlimited time with nighttime power less than 0.25 kW and an
equivalent RMS antenna field of less than 141 mV/m at one km. Class D
stations shall operate with daytime powers not less than 0.25 kW nor
more than 50 kW. Nighttime operations of Class D stations are not
afforded protection and must protect all Class A and Class B operations
during nighttime hours. New Class D stations that had not been
previously licensed as Class B will not be authorized.
(b) Regional Channel. A regional channel is one on which Class B and
Class D stations may operate and serve primarily a principal center of
population and the rural area contiguous thereto.
Note: Until the North American Regional Broadcasting Agreement
(NARBA) is terminated with respect to the Bahama Islands and the
Dominican Republic, radiation toward those countries from a Class B
station may not exceed the level that would be produced by an
omnidirectional antenna with a transmitted power of 5 kW, or such lower
level as will comply with NARBA requirements for protection of stations
in the Bahama Islands and the Dominican Republic against objectionable
interference.
(c) Local channel. A local channel is one on which stations operate
unlimited time and serve primarily a community and the suburban and
rural areas immediately contiguous thereto.
(1) Class C station. A Class C station is a station operating on a
local channel and is designed to render service only over a primary
service area that may be reduced as a consequence of interference in
accordance with Sec. 73.182. The power shall not be less than 0.25 kW,
nor more than 1 kW. Class C stations that are licensed to operate with
0.1 kW may continue to do so.
[56 FR 64856, Dec. 12, 1991]
Sec. 73.23 AM broadcast station applications affected by international agreements.
(a) Except as provided in paragraph (b) of this section, no
application for an AM station will be accepted for filing if
authorization of the facilities requested would be inconsistent with
international commitments of the United States under treaties and other
international agreements, arrangements and understandings. (See list of
such international instruments in Sec. 73.1650(b)). Any such application
that is inadvertently accepted for filing will be dismissed.
(b) AM applications that involve conflicts only with the North
American Regional Broadcasting Agreement (NARBA), but that are in
conformity with the remaining treaties and other international
agreements listed in Sec. 73.1650(b) and with the other requirements of
this part 73, will be granted subject to such modifications as the FCC
may subsequently find appropriate, taking international considerations
into account.
(c) In the case of any application designated for hearing on issues
other than those related to consistency with international relationships
and as to which no final decision has been rendered, whenever action
under this section becomes appropriate because of inconsistency with
international relationships, the applicant involved shall,
notwithstanding the provisions Secs. 73.3522 and 73.3571, be permitted
to amend its application to achieve consistency with such relationships.
In such cases the provisions of Sec. 73.3605(c) will apply.
(d) In some circumstances, special international considerations may
require that the FCC, in acting on applications, follow procedures
different from those established for general use. In such cases,
affected applicants will be informed of the procedures to be followed.
[56 FR 64856, Dec. 12, 1991]
Sec. 73.24 Broadcast facilities; showing required.
An authorization for a new AM broadcast station or increase in
facilities of an existing station will be issued only after a
satisfactory showing has been made in regard to the following, among
others:
(a) That the proposed assignment will tend to effect a fair,
efficient, and equitable distribution of radio service among the several
states and communities.
(b) That a proposed new station (or a proposed change in the
facilities of an authorized station) complies with the
[[Page 14]]
pertinent requirements of Sec. 73.37 of this chapter.
(c) That the applicant is financially qualified to construct and
operate the proposed station.
(d) That the applicant is legally qualified. That the applicant (or
the person or persons in control of an applicant corporation or other
organization) is of good character and possesses other qualifications
sufficient to provide a satisfactory public service.
(e) That the technical equipment proposed, the location of the
transmitter, and other technical phases of operation comply with the
regulations governing the same, and the requirements of good engineering
practice.
(f) That the facilities sought are subject to assignment as
requested under existing international agreements and the rules and
regulations of the Commission.
(g) That the population within the 1 V/m contour does not exceed 1.0
percent of the population within the 25 mV/m contour: Provided, however,
That where the number of persons within the 1 V/m contour is 300 or less
the provisions of this paragraph are not applicable.
(h) That, in the case of an application for a Class B or Class D
station on a clear channel, the proposed station would radiate, during
two hours following local sunrise and two hours preceding local sunset,
in any direction toward the 0.1 mV/m groundwave contour of a co-channel
United States Class A station, no more than the maximum value permitted
under the provisions of Sec. 73.187.
(i) That, for all stations, the daytime 5 mV/m contour encompasses
the entire principal community to be served. That, for stations in the
535-1605 kHz band, 80% of the principal community is encompassed by the
nighttime 5 mV/m contour or the nighttime interference-free contour,
whichever value is higher. That, for stations in the 1605-1705 kHz band,
50% of the principal community is encompassed by the 5 mV/m contour or
the nighttime interference-free contour, whichever value is higher.
That, Class D stations with nighttime authorizations need not
demonstrate such coverage during nighttime operation.
(j) That the public interest, convenience, and necessity will be
served through the operation under the proposed assignment.
[28 FR 13574, Dec. 14, 1963, as amended at 38 FR 5874, Mar. 5, 1973; 49
FR 43960, Nov. 1, 1984; 50 FR 40014, Oct. 1, 1985; 52 FR 11654, Apr. 10,
1987; 53 FR 1031, Jan. 15, 1988; 56 FR 64857, Dec. 12, 1991]
Sec. 73.25 Clear channels; Class A, Class B and Class D stations.
The frequencies in the following tabulations are designated as clear
channels and assigned for use by the Classes of stations given:
(a) On each of the following channels, one Class A station may be
assigned, operating with power of 50 kW: 640, 650, 660, 670, 700, 720,
750, 760, 770, 780, 820, 830, 840, 870, 880, 890, 1020, 1030, 1040,
1100, 1120, 1160, 1180, 1200, and 1210 kHz. In Alaska, these frequencies
can be used by Class A stations subject to the conditions set forth in
Sec. 73.182(a)(1)(ii). On the channels listed in this paragraph, Class B
and Class D stations may be assigned.
(b) To each of the following channels there may be assigned Class A,
Class B and Class D stations: 680, 710, 810, 850, 940, 1000, 1060, 1070,
1080, 1090, 1110, 1130, 1140, 1170, 1190, 1500, 1510, 1520, 1530, 1540,
1550, and 1560 kHz.
Note: Until superseded by a new agreement, protection of the Bahama
Islands shall be in accordance with NARBA. Accordingly, a Class A, Class
B or Class D station on 1540 kHz shall restrict its signal to a value no
greater than 5 V/m groundwave or 25 V/m-10% skywave at
any point of land in the Bahama Islands, and such stations operating
nighttime (i.e., sunset to sunrise at the location of the U.S. station)
shall be located not less than 650 miles from the nearest point of land
in the Bahama Islands.
(c) Class A, Class B and Class D stations may be assigned on 540,
690, 730, 740, 800, 860, 900, 990, 1010, 1050, 1220, 1540, 1570, and
1580 kHz.
[28 FR 13574, Dec. 14, 1963, as amended at 33 FR 4410, Mar. 12, 1968; 35
FR 18052, Nov. 25, 1970; 47 FR 27862, June 28, 1982; 49 FR 43960, Nov.
1, 1984; 50 FR 24520, June 11, 1985; 52 FR 47568, Dec. 15, 1987; 53 FR
1031, Jan. 15, 1988; 54 FR 39736, Sept. 28, 1989; 56 FR 64857, Dec. 12,
1991]
[[Page 15]]
Sec. 73.26 Regional channels; Class B and Class D stations.
(a) The following frequencies are designated as regional channels
and are assigned for use by Class B and Class D stations: 550, 560, 570,
580, 590, 600, 610, 620, 630, 790, 910, 920, 930, 950, 960, 970, 980,
1150, 1250, 1260, 1270, 1280, 1290, 1300, 1310, 1320, 1330, 1350, 1360,
1370, 1380, 1390, 1410, 1420, 1430, 1440, 1460, 1470, 1480, 1590, 1600,
1610, 1620, 1630, 1640, 1650, 1660, 1670, 1680, 1690, and 1700 kHz.
(b) Additionally, in Alaska, Hawaii, Puerto Rico, and the U.S.
Virgin Islands the frequencies 1230, 1240, 1340, 1400, 1450, and 1490
kHz are designated as Regional channels, and are assigned for use by
Class B stations. Stations formerly licensed to these channels in those
locations as Class C stations are redesignated as Class B stations.
[56 FR 64857, Dec. 12, 1991]
Sec. 73.27 Local channels; Class C stations.
Within the conterminous 48 states, the following frequencies are
designated as local channels, and are assigned for use by Class C
stations: 1230, 1240, 1340, 1400, 1450, and 1490 kHz.
[56 FR 64857, Dec. 12, 1991]
Sec. 73.28 Assignment of stations to channels.
(a) The Commission will not make an AM station assignment that does
not conform with international requirements and restrictions on spectrum
use that the United States has accepted as a signatory to treaties,
conventions, and other international agreements. See Sec. 73.1650 for a
list of pertinent treaties, conventions and agreements, and Sec. 73.23
for procedural provisions relating to compliance with them.
(b) Engineering standards now in force domestically differ in some
respects from those specified for international purposes. The
engineering standards specified for international purposes (see
Sec. 73.1650, International Agreements) will be used to determine:
(1) The extent to which interference might be caused by a proposed
station in the United States to a station in another country; and
(2) whether the United States should register an objection to any
new or changed assignment notified by another country. The domestic
standards in effect in the United States will be used to determine the
extent to which interference exists or would exist from a foreign
station where the value of such interference enters into a calculation
of:
(i) The service to be rendered by a proposed operation in the United
States; or
(ii) the permissible interfering signal from one station in the
United States to another United States station.
[28 FR 13574, Dec. 14, 1963, as amended at 29 FR 9499, July 11, 1964; 49
FR 32358, Aug. 14, 1984; 50 FR 18821, May 2, 1985; 54 FR 39736, Sept.
28, 1989; 56 FR 64857, Dec. 12, 1991]
Sec. 73.29 Class C stations on regional channels.
No license will be granted for the operation of a Class C station on
a regional channel.
[ 56 FR 64857, Dec. 12, 1991]
Sec. 73.30 Petition for authorization of an allotment in the 1605-1705 kHz band.
(a) Any party interested in operating an AM broadcast station on one
of the ten channels in the 1605-1705 kHz band must file a petition for
the establishment of an allotment to its community of license. Each
petition must include the following information:
(1) Name of community for which allotment is sought;
(2) Frequency and call letters of the petitioner's existing AM
operation; and
(3) Statement as to whether or not AM stereo operation is proposed
for the operation in the 1605-1705 kHz band.
(b) Petitions are to be filed during a filing period to be
determined by the Commission. For each filing period, eligible stations
will be allotted channels based on the following steps:
(1) Stations are ranked in descending order according to the
calculated improvement factor.
(2) The station with the highest improvement factor is initially
allotted the lowest available channel.
(3) Successively, each station with the next lowest improvement
factor, is allotted an available channel taking into account the
possible frequency
[[Page 16]]
and location combinations and relationship to previously selected
allotments. If a channel is not available for the subject station,
previous allotments are examined with respect to an alternate channel,
the use of which would make a channel available for the subject station.
(4) When it has been determined that, in accordance with the above
steps, no channel is available for the subject station, that station is
no longer considered and the process continues to the station with the
next lowest improvement factor.
(c) If awarded an allotment, a petitioner will have sixty (60) days
from the date of public notice of selection to file an application for
construction permit on FCC Form 301. (See Secs. 73.24 and 73.37(e) for
filing requirements). Unless instructed by the Commission to do
otherwise, the application shall specify Model I facilities. (See
Sec. 73.14). Upon grant of the application and subsequent construction
of the authorized facility, the applicant must file a license
application on FCC Form 302.
Note 1: Until further notice by the Commission, the filing of these
petitions is limited to licensees of existing AM stations (excluding
Class C stations) operating in the 535-1605 kHz band. First priority
will be assigned to Class D stations located within the primary service
contours of U.S. Class A stations that are licensed to serve communities
of 100,000 or more for which there exists no local fulltime aural
service.
Note 2: Selection among competing petitions will be based on
interference reduction. Notwithstanding the exception contained in Note
5 of this section, within each operational category, the station
demonstrating the highest value of improvement factor will be afforded
the highest priority for an allotment, with the next priority assigned
to the station with next lowest value, and so on, until available
allotments are filled.
Note 3: The Commission will periodically evaluate the progress of
the movement of stations from the 535-1605 kHz band to the 1605-1705 kHz
band to determine whether the 1605-1705 kHz band should continue to be
administered on an allotment basis or modified to an assignment method.
If appropriate, the Commission will later develop further procedures for
use of the 1605-1705 kHz band by existing station licensees and others.
Note 4: Other than the exception specified in note 1 of this
section, existing fulltime stations are considered first for selection
as described in note 2 of this section. In the event that an allotment
availability exists for which no fulltime station has filed a relevant
petition, such allotment may be awarded to a licensed Class D station.
If more than one Class D station applies for this migration opportunity,
the following priorities will be used in the selection process: First
priority--a Class D station located within the 0.5 mV/m-50% contour of a
U.S. Class A station and licensed to serve a community of 100,000 or
more, for which there exists no local fulltime aural service; Second
priority--Class D stations ranked in order of improvement factor, from
highest to lowest, considering only those stations with improvement
factors greater than zero.
Note 5: The preference for AM stereo in the expanded band will be
administered as follows: when an allotment under consideration
(candidate allotment) conflicts with one or more previously selected
allotments (established allotments) and cannot be accommodated in the
expanded band, the candidate allotment will be substituted for the
previously established allotment provided that: the petitioner for the
candidate allotment has made a written commitment to the use of AM
stereo and the petitioner for the established allotment has not; the
difference between the ranking factors associated with the candidate and
established allotments does not exceed 10% of the ranking factor of the
candidate allotment; the substitution will not require the displacement
of more than one established allotment; and both the candidate allotment
and the established allotment are within the same priority group.
[58 FR 27949, May 12, 1993]
Sec. 73.31 Rounding of nominal power specified on applications.
(a) An application filed with the FCC for a new station or for an
increase in power of an existing station shall specify nominal power
rounded to two significant figures as follows:
------------------------------------------------------------------------
Rounded
down to
Nominal power (kW) nearest
figure
(kW)
------------------------------------------------------------------------
Below 0.25................................................... 0.001
0.25 to 0.99................................................. 0.01
1 to 9.9..................................................... 0.1
10 to 50..................................................... 1
------------------------------------------------------------------------
(b) In rounding the nominal power in accordance with paragraph (a)
of this section the RMS shall be adjusted accordingly. If rounding
upward to the nearest figure would result in objectionable interference,
the nominal power specified on the application is to
[[Page 17]]
be rounded downward to the next nearest figure and the RMS adjusted
accordingly.
[50 FR 18821, May 2, 1985, as amended at 53 FR 1031, Jan. 15, 1988]
73.33 Antenna systems; showing required.
(a) An application for authority to install a broadcast antenna
shall specify a definite site and include full details of the antenna
design and expected performance.
(b) All data necessary to show compliance with the terms and
conditions of the construction permit must be filed with the license
application. If the station is using a directional antenna, a proof of
performance must also be filed.
[28 FR 13574, Dec. 14, 1963, as amended at 37 FR 25840, Dec. 5, 1972]
Sec. 73.35 Calculation of improvement factors.
A petition for an allotment (See Sec. 73.30) in the 1605-1705 kHz
band filed by an existing fulltime AM station licensed in the 535-1605
kHz band will be ranked according to the station's calculated
improvement factor. (See Sec. 73.30). Improvement factors relate to both
nighttime and daytime interference conditions and are based on two
distinct considerations: (a) Service area lost by other stations due to
interference caused by the subject station, and (b) service area of the
subject station. These considerations are represented by a ratio. The
ratio consists, where applicable, of two separate additive components,
one for nighttime and one for daytime. For the nighttime component, to
determine the numerator of the ratio (first consideration), calculate
the RSS and associated service area of the stations (co- and adjacent
channel) to which the subject station causes nighttime interference.
Next, repeat the RSS and service area calculations excluding the subject
station. The cumulative gain in the above service area is the numerator
of the ratio. The denominator (second consideration) is the subject
station's interference-free service area. For the daytime component, the
composite amount of service lost by co-channel and adjacent channel
stations, each taken individually, that are affected by the subject
station, excluding the effects of other assignments during each study,
will be used as the numerator of the daytime improvement factor. The
denominator will consist of the actual daytime service area (0.5 mV/m
contour) less any area lost tointerference from other assignments. The
value of this combined ratio will constitute the petitioner's
improvement factor. Notwithstanding the requirements of Sec. 73.153, for
uniform comparisons and simplicity, measurement data will not be used
for determining improvement factors and FCC figure M-3 ground
conductivity values are to be used exclusively in accordance with the
pertinent provisions of Sec. 73.183(c)(1).
[56 FR 64858, Dec. 12, 1991]
Sec. 73.37 Applications for broadcast facilities, showing required.
(a) No application will be accepted for a new station if the
proposed operation would involve overlap of signal strength contours
with any other station as set forth below in this paragraph; and no
application will be accepted for a change of the facilities of an
existing station if the proposed change would involve such overlap where
there is not already such overlap between the stations involved:
------------------------------------------------------------------------
Contour of
proposed
station Contour of any other
Frequency separation (kHz) (classes station (mV/m)
B, C and
D) (mV/m)
------------------------------------------------------------------------
0.............................. 0.005 0.100 (Class A).
0.025 0.500(Other classes).
0.500 0.025 (All classes).
10............................. 0.250 0.500(All classes).
0.500 0.250 (All classes).
20............................. 5 5 (All classes).
5 5 (All classes).
30............................. 25 25 (All classes).
------------------------------------------------------------------------
(b) In determining overlap received, an application for a new Class
C station with daytime power of 250 watts, or greater, shall be
considered on the assumption that both the proposed operation and all
existing Class C stations operate with 250 watts and utilize non-
directional antennas.
(c) If otherwise consistent with the public interest, an application
requesting an increase in the daytime power of an existing Class C
station on a local
[[Page 18]]
channel from 250 watts to a maximum of 1kW, or from 100 watts to a
maximum of 500 watts, may be granted notwithstanding overlap prohibited
by paragraph (a) of this section. In the case of a 100 watt Class C
station increasing daytime power, the provisions of this paragraph shall
not be construed to permit an increase in power to more than 500 watts,
if prohibited overlap would be involved, even if successive applications
should be tendered.
(d) In addition to demonstrating compliance with paragraphs (a),
and, as appropriate, (b), and (c) of this section, an application for a
new AM broadcast station, or for a major change (see Sec. 73.3571(a)(1))
in an authorized AM broadcast station, as a condition for its
acceptance, shall make a satisfactory showing, if new or modified
nighttime operation by a Class B station is proposed, that objectionable
interference will not result to an authorized station, as determined
pursuant to Sec. 73.182(1).
(e) An application for an authorization in the 1605-1705 kHz band
which has been selected through the petition process (See Sec. 73.30) is
not required to demonstrate compliance with paragraph (a), (b), (c), or
(d) of this section. Instead, the applicant need only comply with the
terms of the allotment authorization issued by the Commission in
response to the earlier petition for establishment of a station in the
1605-1705 kHz band. Within the allotment authorization, the Commission
will specify the assigned frequency and the applicable technical
requirements.
(f) Stations on 1580, 1590 and 1600 kHz. In addition to the rules
governing the authorization of facilities in the 535-1605 kHz band,
stations on these frequencies seeking facilities modifications must
protect assignments in the 1610-1700 kHz band. Such protection shall be
afforded in a manner which considers the spacings that occur or exist
between the subject station and a station within the range 1605-1700
kHz. The spacings are the same as those specified for stations in the
frequency band 1610-1700 kHz or the current separation distance,
whichever is greater. Modifications that would result in a spacing or
spacings that fails to meet any of the separations must include a
showing that appropriate adjustment has been made to the radiated signal
which effectively results in a site-to-site radiation that is equivalent
to the radiation of a station with standard Model I facilities (10 kW-D,
1 kW-N, non-DA, 90 degree antenna ht. & ground system) operating in
compliance with all of the above separation distances. In those cases
where that radiation equivalence value is already exceeded, a station
may continue to maintain, but not increase beyond that level.
Note 1: In the case of applications for changes in the facilities
of AM broadcast stations covered by this section, an application will be
accepted even though overlap of field strength contours as mentioned in
this section would occur with another station in an area where such
overlap does not already exist, if:
(1) The total area of overlap with that station would not be
increased;
(2) There would be no net increase in the area of overlap with any
other station; and
(3) There would be created no area of overlap with any station with
which overlap does not now exist.
Note 2: The provisions of this section concerning prohibited overlap
of field strength contours will not apply where:
(1) The area of overlap lies entirely over sea water: or
(2) The only overlap involved would be that caused to a foreign
station, in which case the provisions of the applicable international
agreement, as identified in Sec. 73.1650, will apply. When overlap would
be received from a foreign station, the provisions of this section will
apply, except where there would be overlap with a foreign station with a
frequency separation of 20 kHz, in which case the provisions of the
international agreement will apply in lieu of this section.
Note 3: In determining the number of ``authorized'' aural
transmission facilities in a given community, applications for that
community in hearing or otherwise having protected status under
specified ``cut-off'' procedures shall be considered as existing
stations. In the event that there are two or more mutually exclusive
protected applications seeking authorization for the proposed community
it will be assumed that only one is ``authorized.''
Note 4: A ``transmission facility'' for a community is a station
licensed to the community. Such a station provides a ``transmission
service'' for that community.
[56 FR 64858, Dec. 12, 1991; 57 FR 43290, Sept. 18, 1992]
[[Page 19]]
Sec. 73.44 AM transmission system emission limitations.
(a) The emissions of stations in the AM service shall be attenuated
in accordance with the requirements specified in paragraph (b) of this
section. Emissions shall be measured using a properly operated and
suitable swept-frequency RF spectrum analyzer using a peak hold duration
of 10 minutes, no video filtering, and a 300 Hz resolution bandwidth,
except that a wider resolution bandwidth may be employed above 11.5 kHz
to detect transient emissions. Alternatively, other specialized
receivers or monitors with appropriate characteristics may be used to
determine compliance with the provisions of this section, provided that
any disputes over measurement accuracy are resolved in favor of
measurements obtained by using a calibrated spectrum analyzer adjusted
as set forth above.
(b) Emissions 10.2 kHz to 20 kHz removed from the carrier must be
attenuated at least 25 dB below the unmodulated carrier level, emissions
20 kHz to 30 kHz removed from the carrier must be attenuated at least 35
dB below the unmodulated carrier level, emissions 30 kHz to 60 kHz
removed from the carrier must be attenuated at least [5 + 1 dB/kHz]
below the unmodulated carrier level, and emissions between 60 kHz and 75
kHz of the carrier frequency must be attenuated at least 65 dB below the
unmodulated carrier level. Emissions removed by more than 75 kHz must be
attenuated at least 43 + 10 Log (Power in watts) or 80 dB below the
unmodulated carrier level, whichever is the lesser attenuation, except
for transmitters having power less than 158 watts, where the attenuation
must be at least 65 dB below carrier level.
(c) Should harmful interference be caused to the reception of other
broadcast or non-broadcast stations by out of band emissions, the
licensee may be directed to achieve a greater degree of attentuation
than specified in paragraphs (a) and (b) of this section.
(d) Measurements to determine compliance with this section for
transmitter type acceptance are to be made using signals sampled at the
output terminals of the transmitter when operating into an artificial
antenna of substantially zero reactance. Measurements made of the
emissions of an operating station are to be made at ground level
approximately 1 kilometer from the center of the antenna system. When a
directional antenna is used, the carrier frequency reference field
strength to be used in order of preference shall be:
(1) The measure non-directional field strength.
(2) The RMS field strength determined from the measured directional
radiation pattern.
(3) The calculated expected field strength that would be radiated by
a non-directional antenna at the station authorized power.
(e) Licensees of stations complying with the ANSI/EIA-549-1988,
NRSC-1 AM Preemphasis/Deemphasis and Broadcast Transmission Bandwidth
Specifications (NRSC-1), prior to June 30, 1990 or from the original
commencement of operation will, until June 30, 1994, be considered to
comply with paragraphs (a) and (b) of this section, absent any reason
for the Commission to believe otherwise. Such stations are waived from
having to make the periodic measurements required in Sec. 73.1590(a)(6)
until June 30, 1994. However, licensees must make measurements to
determine compliance with paragraphs (a) and (b) of this section upon
receipt of an Official Notice of Violation or a Notice of Apparent
Liability alleging noncompliance with those provisions, or upon specific
request by the Commission.
[47 FR 8588, Mar. 1, 1982, as amended at 49 FR 3999, Feb. 1, 1984]
Sec. 73.45 AM antenna systems.
(a) All applicants for new, additional, or different AM station
facilities and all licensees requesting authority to change the
transmitting system site of an existing station must specify an antenna
system, the efficiency of which complies with the requirements for the
class and power of station. (See Secs. 73.186 and 73.189.)
(1) An application for authority to install an AM broadcast antenna
must specify a definite site and include full details of the antenna
system design and expected performance.
[[Page 20]]
(2) All data necessary to show compliance with the terms and
conditions of the construction permit must be filed with the application
for the station license to cover the construction. If the station has
constructed a directional antenna, a directional proof of performance
must be filed. See Secs. 73.150 through 73.157.
(b) The simultaneous use of a common antenna or antenna structure by
more than one AM station or by a station of any other type or service
may be authorized provided:
(1) Engineering data are submitted showing that satisfactory
operation of each station will be obtained without adversely affecting
the operation of the other station(s).
(2) The minimum field strength for each AM station complies with
Sec. 73.189(b).
(c) Should any changes be made or otherwise occur which would
possibly alter the resistance of the antenna system, the licensee must
commence the determination of the operating power by a method described
in Sec. 73.51(a)(1) or (d). (If the changes are due to the construction
of FM or TV transmitting facilities, see Secs. 73.316, 73.685, and
73.1692.) Upon completion of any necessary repairs or adjustments, or
upon completion of authorized construction or modifications, the
licensee must make a new determination of the antenna resistance using
the procedures described in Sec. 73.54. Operating power should then be
determined by a direct method as described in Sec. 73.51. Notification
of the value of resistance of the antenna system must be filed with the
FCC in Washington, DC as follows:
(1) Whenever the measurements show that the antenna or common point
resistance differs from that shown on the station authorization by more
than 2%, FCC Form 302 must be filed with the information and measurement
data specified in Sec. 73.54(d).
(2) Whenever AM stations use direct reading power meters pursuant to
Sec. 73.51, a letter notification to the FCC in Washington, DC,
Attention: Audio Services Division, Mass Media Bureau, must be filed in
accordance with Sec. 73.54(e).
[43 FR 53735, Nov. 17, 1978, as amended at 45 FR 28141, Apr. 28, 1980;
47 FR 8589, Mar. 1, 1982; 50 FR 32416, Aug. 12, 1985; 51 FR 2707; Jan.
21, 1986; 51 FR 26250, July 22, 1986; 63 FR 33875, June 22, 1998]
Sec. 73.49 AM transmission system fencing requirements.
Antenna towers having radio frequency potential at the base (series
fed, folded unipole, and insulated base antennas) must be enclosed
within effective locked fences or other enclosures. Ready access must be
provided to each antenna tower base for meter reading and maintenance
purposes at all times. However, individual tower fences need not be
installed if the towers are contained within a protective property
fence.
[51 FR 2707, Jan. 21, 1986]
Sec. 73.51 Determining operating power.
(a) Except in those circumstances described in paragraph (d) of this
section, the operating power shall be determined by the direct method.
The direct method consists of either:
(1) using a suitable instrument for determining the antenna's input
power directly from the RF voltage, RF current, and phase angle; or
(2) calculating the product of the licensed antenna or common point
resistance at the operating frequency (see Sec. 73.54), and the square
of the indicated unmodulated antenna current at that frequency, measured
at the point where the resistance has been determined.
(b) The authorized antenna input power for each station shall be
equal to the nominal power for such station, with the following
exceptions:
(1) For stations with nominal powers of 5 kW, or less, the
authorized antenna input power to directional antennas shall exceed the
nominal power by 8 percent.
(2) For stations with nominal powers in excess of 5 kW, the
authorized antenna input power to directional antennas shall exceed the
nominal power by 5.3 percent.
[[Page 21]]
(3) In specific cases, it may be necessary to limit the radiated
field to a level below that which would result if normal power were
delivered to the antenna. In such cases, excess power may be dissipated
in the antenna feed circuit, the transmitter may be operated with power
output at a level which is less than the rated carrier power, or a
combination of the two methods may be used, subject to the conditions
given in paragraph (c) of this section.
(i) Where a dissipative network is employed, the authorized antenna
current and resistance, and the authorized antenna input power shall be
determined at the input terminals of the dissipative network.
(ii) Where the authorized antenna input power is less than the
nominal power, subject to the conditions set forth in paragraph (c) of
this section, the transmitter may be operated at the reduced power level
necessary to supply the authorized antenna input power.
(c) Applications for authority to operate with antenna input power
which is less than nominal power and/or to employ a dissipative network
in the antenna system shall be made on FCC Form 302. The technical
information supplied on section II-A of this form shall be that applying
to the proposed conditions of operation. In addition, the following
information shall be furnished, as pertinent:
(1) Full details of any network employed for the purpose of
dissipating radio frequency energy otherwise delivered to the antenna
(see Sec. 73.54).
(2) A showing that the transmitter has been type accepted or
notified for operation at the proposed power output level, or, in lieu
thereof:
(i) A full description of the means by which transmitter output
power will be reduced.
(ii) Where the proposed transmitter power output level(s) is less
than 90% of the rated power of the transmitter, equipment performance
measurements must be made to confirm that the station transmissions
conform to the emission limitation specified in Sec. 73.44, under all
conditions of program operation.
(iii) A showing that, at the proposed power output level, means are
provided for varying the transmitter output within a tolerance of
plus-minus10 percent, to compensate for variations in line
voltage or other factors which may affect the power output level.
(d) When it is not possible or appropriate to use the direct method
of power determination due to technical reasons, the indirect method of
determining operating power (see paragraphs (e) and (f) of this section)
may be used on a temporary basis. A notation must be made in the station
log indicating the dates of commencement and termination of measurement
using the indirect method of power determination.
(e) The antenna input power is determined indirectly by applying an
appropriate factor to the input power to the last radio-frequency power
amplifier stage of the transmitter, using the following formula:
Where:
Antenna input power=Ep x Ip x F
Ep=DC input voltage of final radio stage.
Ip=Total DC input current of final radio stage.
F= Efficiency factor.
(1) If the above formula is not appropriate for the design of the
transmitter final amplifier, use a formula specified by the transmitter
manufacturer with other appropriate operating parameters.
(2) The value of F applicable to each mode of operation must be
determined and a record kept thereof with a notation as to its
derivation. This factor is to be established by one of the methods
described in paragraph (f) of this section and retained in the station
records.
(f) The value of F is to be determined by one of the following
procedures listed in order of preference:
(1) If the station had previously been authorized and operating by
determining the antenna input power by the direct method, the factor F
is the ratio of the antenna input power (determined by the direct
method) to the corresponding final radio frequency power amplifier input
power.
(2) If a station has not been previously in regular operation with
the power authorized for the period of indirect power determination, if
a new transmitter has been installed, or if,
[[Page 22]]
for any other reason, the determination of the factor F by the method
described in paragraph (f)(1) of this section is impracticable:
(i) The factor F as shown in the transmitter manufacturer's test
report, if such a test report specifies a unique value of F for the
power level and frequently used; or
(ii) The value determined by reference to the following table:
------------------------------------------------------------------------
Method of Maximum rated carrier Class of
Factor(F) modulation power amplifier
------------------------------------------------------------------------
0.70 Plate.............. 1 kW or less.......... ................
.80 Plate.............. 2.5 kW and over....... ................
.35 Low level.......... 0.25 kW and over...... B
.65 Low level.......... 0.25 kW and over...... BC\1\
.35 Grid............... 0.25 kW and over...... ................
------------------------------------------------------------------------
\1\ All linear amplifier operation where efficiency approaches that of
class C operation.
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, as amended, 1068, 1082, as
amended; 47 U.S.C. 154, 155, 303. Interpret or apply secs. 301, 303,
307, 48 Stat. 1081, 1082, as amended, 47 U.S.C. 301, 303, 307)
[37 FR 7516, Apr. 15, 1972, as amended at 42 FR 36827, July 18, 1977; 42
FR 61863, Dec. 7, 1977; 44 FR 36036, June 20, 1979; 47 FR 28387, June
30, 1982; 48 FR 38477, Aug. 24, 1983; 48 FR 44805, Sept. 30, 1983; 49 FR
3999, Feb. 1, 1984; 49 FR 4210, Feb. 3, 1984; 49 FR 49850, Dec. 24,
1984; 50 FR 24521, June 11, 1985; 52 FR 10570, Apr. 2, 1987]
Sec. 73.53 Requirements for authorization of antenna monitors.
(a) Antenna monitors shall be verified for compliance with the
technical requirements in this section. The procedure for verification
is specified in subpart J of part 2 of the FCC's rules.
(b) An antenna monitor shall meet the following specifications:
(1) The monitor shall be designed to operate in the 535-1705 kHz
band.
(2) The monitor shall be capable of indicating any phase difference
between two RF voltages of the same frequency over a range of from 0 to
360 deg..
(3) The monitor shall be capable of indicating the relative
amplitude of two RF voltages.
(4) The device used to indicate phase differences shall indicate in
degrees, and shall be graduated in increments of 2 deg., or less. If a
digital indicator is provided, the smallest increment shall be 0.5 deg.,
or less.
(5) The device used to indicate relative amplitudes shall be
graudated in increments which are 1 percent, or less, of the full scale
value. If a digital indicator is provided, the smallest increment shall
be 0.1 percent, or less, of the full scale value.
(6) The monitor shall be equipped with means, if necessary, to
resolve ambiguities in indication.
(7) If the monitor is provided with more than one RF input terminal
in addition to a reference input terminal, appropriate switching shall
be provided in the monitor so that the signal at each of these RF inputs
may be selected separately for comparison with the reference input
signal.
(8) Each RF input of the monitor shall provide a termination of such
characteristics that, when connected to a sampling line of an impedance
specified by the manufacturer the voltage reflection coefficient shall
be 3 percent or less.
(9) The monitor, if intended for use by stations operating
directional antenna systems by remote control, shall be designed so that
the switching functions required by paragraph (b)(7) of this section may
be performed from a point external to the monitor, and phase and
amplitude indications be provided by external meters. The indications of
external meters furnished by the manufacturer shall meet the
specifications for accuracy and repeatability of the monitor itself, and
the connection of these meters to the monitor, or of other indicating
instruments with electrical characteristics meeting the specifications
of the monitor manufacturer shall not affect adversely the performance
of the monitor in any respect.
(10) Complete and correct schematic diagrams and operating
instructions shall be retained by the party responsible for verification
of the equipment and submitted to the FCC upon request. For the purpose
of equipment authorization, these diagrams and instructions shall be
considered as part of the monitor.
(11) When an RF signal of an amplitude within a range specified by
the manufacturer is applied to the reference RF input terminal of the
monitor, and another RF signal of the same
[[Page 23]]
frequency and of equal or lower amplitude is applied to any other
selected RF input terminal, indications shall be provided meeting the
following specifications.
(i) The accuracy with which any difference in the phases of the
applied signals is indicated shall be plus-minus1 deg., or
better, for signal amplitude ratios of from 2:1 to 1:1, and
plus-minus2 deg., or better, for signal amplitude ratios in
excess of 2:1 and up to 5:1.
(ii) The repeatability of indication of any difference in the phases
of the applied signals shall be plus-minus1 deg., or better.
(iii) The accuracy with which the relative amplitudes of the applied
signals is indicated, over a range in which the ratio of these
amplitudes is between 2:1 and 1:1, shall be plus-minus2
percent of the amplitude ratio, or better, and for amplitude ratios in
excess of 2:1 and up to 5:1, plus-minus5 percent of the
ratio, or better.
(iv) The repeatability of indication of the relative amplitudes of
the applied signals, over a range where the ratio of these amplitudes is
between 5:1 and 1:1, shall be plus-minus2 percent of the
amplitude ratio, or better.
(v) The modulation of the RF signals by a sinusoidal wave of any
frequency between 100 and 10,000 Hz, at any amplitude up to 90 percent
shall cause no deviation in an indicated phase difference from its
value, as determined without modulation, greater than
plus-minus0.5 deg..
(12) The performance specifications set forth in paragraph (c)(13)
of this section, shall be met when the monitor is operated and tested
under the following conditions.
(i) After continuous operation for 1 hour, the monitor shall be
calibrated and adjusted in accordance with the manufacturer's
instructions.
(ii) The monitor shall be subjected to variations in ambient
temperature between the limits of 10 and 40 deg.C; external meters
furnished by the manufacturer will be subjected to variations between 15
and 30 deg.C.
(iii) Powerline supply voltage shall be varied over a range of from
10 percent below to 10 percent above the rated supply voltage.
(iv) The amplitude of the reference signal shall be varied over the
operating range specified by the manufacturer, and in any case over a
range of maximum to minimum values of 3 to 1.
(v) The amplitude of the comparison signal shall be varied from a
value which is 0.2 of the amplitude of the reference signal to a value
which is equal in amplitude to the reference signal.
(vi) Accuracy shall be determined for the most adverse combination
of conditions set forth above.
(vii) Repeatability shall be determined as that which may be
achieved under the specified test conditions over a period of 7 days,
during which no calibration or adjustment of the instrument, subsequent
to the initial calibration, shall be made.
(viii) The effects of modulation of the RF signal shall be
separately determined, and shall not be included in establishing values
for accuracy and repeatability.
(c) A station determined to have a critical directional antenna must
use an antenna monitor having high tolerance characteristics determined
on an individual basis, and specified on the station authorization. Such
monitors are not subject to the authorization of paragraph (a), however
they may be used only at the station for which they were specified.
Note: In paragraph (b)(1) of this section, the requirement that
monitors be capable of operation in the 535-1705 kHz band shall apply
only to equipment manufactured after July 1, 1992. Use of a monitor in
the 1605-1705 kHz band which is not approved for such operation will be
permitted pending the general availability of 535-1705 kHz band monitors
if a manufacturer can demonstrate, in the interim, that its monitor
performs in accordance with the standards in this section on these 10
channels.
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, 1082 (47 U.S.C. 154,
155, 303))
[38 FR 1917, Jan. 19, 1973, as amended at 49 FR 3999, Feb. 1, 1984; 49
FR 29069, July 18, 1984; 50 FR 32416, Aug. 12, 1985; 50 FR 47054, Nov.
14, 1985; 51 FR 2707, Jan. 21, 1986; 56 FR 64859, Dec. 12, 1991; 57 FR
43290, Sept. 18, 1992; 60 FR 55480, Nov. 1, 1995; 63 FR 36604, July 7,
1998]
Sec. 73.54 Antenna resistance and reactance measurements.
(a) The resistance of an omnidirectional series fed antenna is
measured at either the base of the antenna without intervening coupling
or
[[Page 24]]
tuning networks, or at the point the transmission line connects to the
output terminals of the transmitter. The resistance of a shunt excited
antenna may be measured at the point the radio frequency energy is
transferred to the feed wire circuit or at the output terminals of the
transmitter.
(b) The resistance and reactance of a directional antenna shall be
measured at the point of common radiofrequency input to the directional
antenna system. The following conditions shall obtain:
(1) The antenna shall be finally adjusted for the required radiation
pattern.
(2) The reactance at the operating frequency and at the point of
measurement shall be adjusted to zero, or as near thereto as
practicable.
(c)(1) The resistance of an antenna shall be determined by the
following procedure: A series of discrete measurements shall be made
over a band of frequencies extending from approximately 25 kHz below the
operating frequency to approximately 25 kHz above that frequency, at
intervals of approximately 5 kHz. The measured values shall be plotted
on a linear graph, with frequency as the abscissa and resistance as the
ordinate. A smooth curve shall be drawn through the plotted values. The
resistance value corresponding to the point of intersection of the curve
and the ordinate representing the operating frequency of the station
shall be the resistance of the antenna.
(2) For a directional antenna, the reactance of the antenna shall be
determined by a procedure similar to that described in paragraph (c)(1)
of this section.
(d) A letter of notification must be filed with the FCC in
Washington, DC, Attention: Audio Services Division, Mass Media Bureau,
when determining power by the direct method pursuant to Sec. 73.51 and
must specify the antenna or common point resistance at the operating
frequency. The following information must also be kept on file at the
station:
(1) A full description of the method used to make measurements.
(2) A schematic diagram showing clearly all components of coupling
circuits, the point of resistance measurement, the location of the
antenna ammeter, connections to and characteristics of all tower
lighting isolation circuits, static drains, and any other fixtures
connected to and supported by the antenna, including other antennas and
associated networks. Any network or circuit component used to dissipate
radio frequency power shall be specifically identified, and the
impedances of all components which control the level of power
dissipation, and the effective input resistance of the network must be
indicated.
(e) AM stations using direct reading power meters in accordance with
Sec. 73.51, can either submit the information required by paragraph (d)
of this section or submit a statement indicating that such a meter is
being used. Subsequent station licenses will indicate the use of a
direct reading power meter in lieu of the antenna resistance value in
such a situation.
[34 FR 18305, Nov. 15, 1969, as amended at 37 FR 7517, Apr. 15, 1972; 45
FR 26062, Apr. 17, 1980; 49 FR 49850, Dec. 24, 1984; 50 FR 32416, Aug.
12, 1985; 51 FR 2707, Jan. 21, 1986; 51 FR 26250, July 22, 1986; 63 FR
33876, June 22, 1998]
Sec. 73.57 Remote reading antenna and common point ammeters.
Remote reading antenna and common point ammeters may be used without
further authority according to the following conditions:
(a) Remote reading antenna or common point ammeters may be provided
by:
(1) Inserting second radio frequency current sensing device directly
in the antenna circuit with remote leads to the indicating instruments.
(2) Inductive coupling to radio frequency current sensing device for
providing direct current to indicating instrument.
(3) Capacity coupling to radio frequency current sensing device for
providing direct current to indicating instrument.
(4) Current transformer connected to radio frequency current sensing
device for providing direct current to indicating instrument.
(5) Using transmission line current meter at transmitter as remote
reading
[[Page 25]]
ammeter. See paragraph (c) of this section.
(6) Using the indications of the antenna (phase) monitor, provided
that when the monitor is used to obtain remote reading indication of
non-directional antenna base current, the monitor calibration can be
independently made and maintained for each mode of operation.
(b) Devices used for obtaining remote reading antenna or common
point current indications, except antenna monitor coupling elements,
shall be located at the same point as, but below (transmitter side) the
associated main ammeter.
(c) In the case of shunt-excited antennas, the transmission line
current meter at the transmitter may be considered as the remote antenna
ammeter provided the transmission line is terminated directly into the
excitation circuit feed line, which shall employ series tuning only (no
shunt circuits of any type shall be employed) and insofar as
practicable, the type and scale of the transmission line meter should be
the same as those of the excitation circuit feed line meter (meter in
slant wire feed line or equivalent).
(d) Each remote reading ammeter shall be accurate to within 2
percent of the value read on its corresponding regular ammeter.
(e) All remote reading ammeters shall conform with the
specifications for regular antenna ammeters.
(f) Meters with arbitrary scale divisions may be used provided that
calibration charts or curves are provided at the transmitter control
point showing the relationship between the arbitrary scales and the
reading of the main meters.
(g) If a malfunction affects the remote reading indicators of the
antenna or common point ammeter, the operating power may be determined
by a method using alternative procedures as described in Sec. 73.51.
[41 FR 36817, Sept. 1, 1976, as amended at 48 FR 38477, Aug. 24, 1983;
49 FR 49850, Dec. 24, 1984; 50 FR 32416, Aug. 12, 1985; 60 FR 55480,
Nov. 1, 1995]
Sec. 73.58 Indicating instruments.
(a) Each AM broadcast station must be equipped with indicating
instruments which conform with the specifications described in
Sec. 73.1215 for determining power by the direct and indirect methods,
and with such other instruments as are necessary for the proper
adjustment, operation, and maintenance of the transmitting system.
However, auxiliary transmitters with a nominal power rating of 100 watts
or less are not required to be equipped with instruments to determine
power by the indirect method provided that the licensee can determine
the antenna input power at all times.
(b) A thermocouple type ammeter or other device capable of providing
an indication of radio frequency current, meeting the requirements of
Sec. 73.1215, shall be installed at the base of each antenna element. A
suitable jack and plug arrangement may be used to permit removal of the
meter from the antenna circuit thereby protecting it from damage by
lighting.
(c) Since it is usually impractical to measure the actual antenna
current of a shunt excited antenna system, the current measured at the
input of the excitation circuit feed line is accepted as the antenna
current.
(d) The function of each instrument shall be clearly and permanently
shown on the instrument itself or on the panel immediately adjacent
thereto.
(e) In the event that any one of these indicating instruments
becomes defective when no substitute which conforms with the required
specifications is available, the station may be operated without the
defective instrument pending its repair or replacement for a period not
in excess of 60 days without further authority of the Commission:
Provided, That:
(1) If the defective instrument is an antenna base current ammeter
of a directional antenna system, the indications may be obtained from
the antenna monitor pending the return to service of the regular meter,
provided other parameters are maintained at their normal values.
(2) If the defective instrument is the antenna current meter of a
non-directional station which does not employ a remote antenna ammeter,
or if the defective instrument is the common
[[Page 26]]
point meter of a station which employs a directional antenna and does
not employ a remote common point meter, the operating power shall be
determined by a method described in Sec. 73.51(a)(1) or (d) during the
entire time the station is operated without the antenna current meter or
common point meter. However, if a remote meter is employed and the
antenna current ammeter or common point meter becomes defective, the
remote meter can be used to determine operating power pending the return
to service of the regular meter.
(f) If conditions beyond the control of the licensee prevent the
restoration of the meter to service within the above allowed period,
information requested in accordance with Sec. 73.3549 may be filed by
letter with the FCC in Washington, DC, Attention: Audio Services
Division, Mass Media Bureau, to request additional time as may be
required to complete repairs of the defective instrument.
[41 FR 36817, Sept. 1, 1976, as amended at 48 FR 38477, Aug. 24, 1983;
49 FR 49850, Dec. 24, 1984; 50 FR 32416, Aug. 12, 1985; 51 FR 2707, Jan.
21, 1986; 53 FR 2498, Jan. 28, 1988; 63 FR 33876, June 22, 1998]
Sec. 73.61 AM directional antenna field strength measurements.
(a) Each AM station using a directional antenna must make field
strength measurements at the monitoring point locations specified in the
instrument of authorization, as often as necessary to ensure that the
field at those points does not exceed the values specified in the
station authorization. Additionally, stations not having an approved
sampling system must make the measurements once each calendar quarter at
intervals not exceeding 120 days. The provision of this paragraph
supersedes any schedule specified on a station license issued prior to
January 1, 1986. The results of the measurements are to be entered into
the station log pursuant to the provisions of Sec. 73.1820.
(b) Partial proof of performance measurements using the procedures
described in Sec. 73.154 must be made whenever the licensee has reason
to believe that the radiated field may be exceeding the limits for which
the station was most recently authorized to operate.
(c) A station may be directed to make a partial proof of performance
by the FCC whenever there is an indication that the antenna is not
operating as authorized.
[50 FR 47054, Nov. 14, 1985]
Sec. 73.62 Directional antenna system tolerances.
(a) Each AM station operating a directional antenna must maintain
the indicated relative amplitudes of the antenna base currents and
antenna monitor currents within 5% of the values specified therein.
Directional antenna relativephase currents must be maintained to within
3 deg. of the values specified on the instrument of
authorization, unless other tolerances are specified therein.
(b) Whenever the operating parameters of a directional antenna
cannot be maintained within the tolerances specified in paragraph (a) of
this section, the following procedures will apply:
(1) The licensee shall measure and log every monitoring point at
least once for each mode of directional operation. Subsequent variations
in operating parameters will require the remeasuring and logging of
every monitoring point to assure that the authorized monitoring point
limits are not being exceeded.
(2) Provided each monitoring point is within its specified limit,
operation may continue for a period up to 30 days before a request for
Special Temporary Authority (STA) must be filed, pursuant to paragraph
(b)(4) of this section, to operate with parameters at variance from the
provisions of paragraph (a) of this section.
(3) If any monitoring point exceeds its specified limit, the
licensee must either terminate operation within 3 hours or reduce power
in accordance with the applicable provisions of Sec. 73.1350(d), in
order to eliminate any possibility of interference or excessive
radiation in any direction.
(4) If operation pursuant to paragraph (b)(3) of this section is
necessary, or before the 30 day period specified in paragraph (b)(2) of
this section expires, the licensee must request a Special
[[Page 27]]
Temporary Authority (STA) in accordance with Sec. 73.1635 to continue
operation with parameters at variance and/or with reduced power along
with a statement certifying that all monitoring points will be
continuously maintained within their specified limits.
(5) The licensee will be permitted 24 hours to accomplish the
actions specified in paragraph (b)(1) of this section; provided that,
the date and time of the failure to maintain proper operating parameters
has been recorded in the station log.
(c) In any other situation in which it might reasonably be
anticipated that the operating parameters might vary out of tolerance
(such as planned array repairs or adjustment and proofing procedures),
the licensee shall, before such activity is undertaken, obtain an STA in
accordance with Sec. 73.1635 in order to operate with parameters at
variance and/or with reduced power as required to maintain all
monitoring points within their specified limits.
[50 FR 30946, July 31, 1985, as amended at 60 FR 55480, Nov. 1, 1995]
Sec. 73.68 Sampling systems for antenna monitors.
(a) Each AM station permittee authorized to construct a new
directional antenna system, must install the sampling system in
accordance with the following specifications:
(1) Devices used to extract or sample the current and the
transmission line connecting the sampling elements to the antenna
monitor must provide accurate and stable signals to the monitor (e.g.,
rigidly mounted and non-rotatable loops and all system components
protected from physical and environmental disturbances).
(2) Sampling lines for critical directional antennas (see
Sec. 73.14) must be of uniform length. Sampling lines for non-critical
directional antennas may be of different lengths provided the phase
difference of signals at the monitor are less than 0.5 deg. between the
shortest and longest cable lengths due to temperature variations to
which the system is exposed.
(3) Other configurations of sampling systems may be used upon
demonstration of stable operation to the FCC.
(b) A station having an antenna sampling system constructed
according to the specifications given in paragraph (a) of this section
may obtain approval of that system by submitting an informal letter
request to the FCC in Washington, DC, Attention: Audio Services
Division, Mass Media Bureau. The request for approval, signed by the
licensee or authorized representative, must contain sufficient
information to show that the sampling system is in compliance with all
requirements of paragraph (a) of this section.
Note to paragraph (b):
A public notice dated December 9, 1985 giving additional information
on approval of antenna sampling systems is available through the
Internet at http://www.fcc.gov/mmb/asd/decdoc/letter/1985-12-09--
sample.html.
(c) In the event that the antenna monitor sampling system is
temporarily out of service for repair or replacement, the station may be
operated, pending completion of repairs or replacement, for a period not
exceeding 120 days without further authority from the FCC if all other
operating parameters and the field monitoring point values are within
the limits specified on the station authorization.
(d) If the antenna sampling system is modified or components of the
sampling system are replaced, the following procedure shall be followed:
(1) Special Temporary Authority (see Sec. 73.1635) shall be
requested and obtained from the Commission's Audio Services Division,
Mass Media Bureau in Washington to operate with parameters at variance
with licensed values pending issuance of a modified license specifying
parameters subsequent to modification or replacement of components.
(2) Immediately prior to modification or replacement of components
of the sampling system not on the towers, and after a verification that
all monitoring point values, base current ratios and operating
parameters are within the limits or tolerances specified in the
instrument of authorization or the pertinent rules, the following
indications must be read for each radiation pattern: Final plate current
and plate voltage, common point current, base currents and their ratios,
antenna monitor phase and current indications,
[[Page 28]]
and the field strength at each monitoring point. Subsequent to these
modifications or changes the above procedure must be repeated.
(3) If that portion of the sampling system above the base of the
towers is modified or components replaced, a partial proof of
performance shall be executed in accordance with Sec. 73.154 subsequent
to these changes. The partial proof of performance shall be accompanied
by common point impedance measurements made in accordance with
Sec. 73.54.
(4) Request for modification of license shall be submitted to the
FCC in Washington, DC, within 30 days of the date of sampling system
modification or replacement. Such request shall specify the transmitter
plate voltage and plate current, common point current, base currents and
their ratios, antenna monitor phase and current indications, and all
other data obtained pursuant to this paragraph.
(e) If an existing sampling system is found to be patently of
marginal construction, or where the performance of a directional antenna
is found to be unsatisfactory, and this deficiency reasonably may be
attributed, in whole or in part, to inadequacies in the antenna
monitoring system, the FCC may require the reconstruction of the
sampling system in accordance with requirements specified above.
[41 FR 7405, Feb. 18, 1976, as amended at 42 FR 24056, May 12, 1977; 44
FR 58731, Oct. 11, 1979; 46 FR 35462, July 8, 1981; 48 FR 38478, Aug.
24, 1983; 48 FR 44805, Sept. 30, 1983; 49 FR 32358, Aug. 14, 1984; 50 FR
47054, Nov. 14, 1985; 51 FR 9965, Mar. 24, 1986; 51 FR 40435, Nov. 7,
1986; 56 FR 64859, Dec. 12, 1991; 63 FR 33876, June 22, 1998]
Sec. 73.69 Antenna monitors.
(a) Each station using a directional antenna must have in operation
at the transmitter site an FCC authorized antenna monitor. However, if
the station authorization sets specific tolerances within which the
phase and amplitude relationships must be maintained, or requires the
use of a monitor of specified repeatability, resolution or accuracy, the
antenna monitor used will be authorized on an individual basis.
(1) Normally, the antenna monitor is to be installed immediately
adjacent to the transmitter and antenna phasing equipment. However, the
monitor may be located elsewhere provided that its environment is
maintained at all times within those limits under which the monitor was
type-approved.
(2) The antenna monitor installed at a station operating a
directional antenna by remote control or when the monitor is installed
in the antenna field at a distance from the transmitter, must be
designed and authorized for such use in accordance with the provisions
of Sec. 73.53(b)(9).
(b) In the event that the antenna monitor sampling system is
temporarily out of service for repair or replacement, the station may be
operated, pending completion of repairs or replacement, for a period not
exceeding 120 days without further authority from the FCC if all other
operating parameters, and the field monitoring point values are within
the limits specified on the station authorization.
(c) If conditions beyond the control of the licensee prevent the
restoration of the monitor to service within the allowed period, an
informal letter request in accordance with Sec. 73.3549 of the
Commission's rules must be filed with the FCC, Attention: Audio Services
Division, Mass Media Bureau in Washington, DC for such additional time
as may be required to complete repairs of the defective instrument.
(d) If an authorized antenna monitor is replaced by another antenna
monitor, the following procedure shall be followed:
(1) Temporary authority shall be requested and obtained from the
Commission in Washington to operate with parameters at variance with
licensed values, pending issuance of a modified license specifying new
parameters.
(2) Immediately prior to the replacement of the antenna monitor,
after a verification that all monitoring point values and base current
ratios are within the limits or tolerances specified in the instrument
of authorization or the pertinent rules, the following indications must
be read for each radiation pattern: Final plate current and plate
voltage, common point current, base currents, antenna monitor phase and
current indications, and the field strength at each monitoring point.
[[Page 29]]
(3) With the new monitor substituted for the old, all indications
specified in paragraph (d)(2) of this section, again must be read. If no
change has occurred in the indication for any parameter other than the
indications of the antenna monitor, the new antenna monitor indications
must be deemed to be those reflecting correct array adjustments.
(4) If it cannot be established by the observations required in
paragraph (d)(2) of this section that base current ratios and monitoring
point values are within the tolerances or limits prescribed by the rules
and the instrument of authorization, or if the substitution of the new
antenna monitor for the old results in changes in these parameters, a
partial proof of performance shall be executed and analyzed in
accordance with Sec. 73.154.
(5) An informal letter request for modification of license shall be
submitted to the FCC, Attention: Audio Services Division, Mass Media
Bureau in Washington, DC within 30 days of the date of monitor
replacement. Such request shall specify the make, type, and serial
number of the replacement monitor, phase and sample current indications,
and other data obtained pursuant to paragraph (d) of this section.
(e) The antenna monitor must be calibrated according to the
manufacturer's instructions as often as necessary to ensure its proper
operation.
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, as amended, 1082, as
amended; 47 U.S.C. 154, 303. Interpret or apply secs. 301, 303, 307, 48
Stat. 1081, 1082, as amended, 1083, as amended, 47 U.S.C. 301, 303, 307)
[38 FR 1918, Jan. 19, 1973, as amended at 40 FR 15884, Apr. 8, 1975; 40
FR 25459, June 16, 1975; 40 FR 27939, July 2, 1975; 41 FR 22942, June 8,
1976; 41 FR 32892, Aug. 6, 1976; 43 FR 4022, Jan. 31, 1978; 45 FR 26062,
Apr. 17, 1980; 48 FR 38478, Aug. 24, 1983; 49 FR 3999, Feb. 1, 1984; 50
FR 47054, Nov. 14, 1985; 51 FR 9965, Mar. 24, 1986; 56 FR 64859, Dec.
12, 1991; 60 FR 55480, Nov. 1, 1995; 63 FR 33876, June 22, 1998]
Sec. 73.72 Operating during the experimental period.
(a) An AM station may operate during the experimental period (the
time between midnight and sunrise, local time) on its assigned frequency
and with its authorized power for the routine testing and maintenance of
its transmitting system, and for conducting experimentation under an
experimental authorization, provided no interference is caused to other
stations maintaining a regular operating schedule within such period.
(b) No station licensed for ``daytime'' or ``specified hours'' of
operation may broadcast any regular or scheduled program during this
period.
(c) The licensee of an AM station shall operate or refrain from
operating its station during the experimental period as directed by the
FCC to facilitate frequency measurements or for the determination of
interference.
[43 FR 32780, July 28, 1978, as amended at 56 FR 64859, Dec. 12, 1991]
Sec. 73.88 Blanketing interference.
The licensee of each broadcast station is required to satisfy all
reasonable complaints of blanketing interference within the 1 V/m
contour.
Note: For more detailed instructions concerning operational
responsibilities of licensees and permittees under this section, see
Sec. 73.318 (b), (c) and (d).
[28 FR 13574, Dec. 14, 1963, as amended at 56 FR 64859, Dec. 12, 1991]
Sec. 73.99 Presunrise service authorization (PSRA) and postsunset service authorization (PSSA).
(a) To provide maximum uniformity in early morning operation
compatible with interference considerations, and to provide for
additional service during early evening hours for Class D stations,
provisions are made for presunrise service and postsunset service. The
permissible power for presunrise or postsunset service authorizations
shall not exceed 500 watts, or the authorized daytime or critical hours
power (whichever is less). Calculation of the permissible power shall
consider only co-channel stations for interference protection purposes.
(b) Presunrise service authorizations (PSRA) permit:
(1) Class D stations operating on Mexican, Bahamian, and Canadian
priority Class A clear channels to commence PSRA operation at 6 a.m.
local time and to continue such operation until the sunrise times
specified in
[[Page 30]]
their basic instruments of authorization.
(2) Class D stations situated outside 0.5 mV/m-50% skywave contours
of co-channel U.S. Class A stations to commence PSRA operation at 6 a.m.
local time and to continue such operation until sunrise times specified
in their basic instruments of authorization.
(3) Class D stations located within co-channel 0.5 mV/m-50% skywave
contours of U.S. Class A stations, to commence PSRA operation either at
6 a.m. local time, or at sunrise at the nearest Class A station located
east of the Class D station (whichever is later), and to continue such
operation until the sunrise times specified in their basic instruments
of authorization.
(4) Class B and Class D stations on regional channels to commence
PSRA operation at 6 a.m. local time and to continue such operation until
local sunrise times specified in their basic instruments of
authorization.
(c) Extended Daylight Saving Time Pre-Sunrise Authorizations:
(1) Between the first Sunday in April and the end of the month of
April, Class D stations will be permitted to conduct pre-sunrise
operation beginning at 6 a.m. local time with a maximum power of 500
watts (not to exceed the station's regular daytime or critical hours
power), reduced as necessary to comply with the following requirements:
(i) Full protection is to be provided as specified in applicable
international agreements.
(ii) Protection is to be provided to the 0.5 mV/m groundwave signals
of co-channel U.S. Class A stations; protection to the 0.5 mV/m-50%
skywave contours of these stations is not required.
(iii) In determining the protection to be provided, the effect of
each interfering signal will be evaluated separately. The presence of
interference from other stations will not reduce or eliminate the
required protection.
(iv) Notwithstanding the requirements of paragraph (c)(1) (ii) and
(iii) of this section, the stations will be permitted to operate with a
minimum power of 10 watts unless a lower power is required by
international agreement.
(2) The Commission will issue appropriate authorizations to Class D
stations not previously eligible to operate during this period. Class D
stations authorized to operate during this presunrise period may
continue to operate under their current authorization.
(d) Postsunset service authorizations (PSSA) permit:
(1) Class D stations located on Mexican, Bahamian, and Canadian
priority Class A clear channels to commence PSSA operation at sunset
times specified in their basic instruments of authorization and to
continue for two hours after such specified times.
(2) Class D stations situated outside 0.5 mV/m-50% skywave contours
of co-channel U.S. Class A stations to commence PSSA operations at
sunset times specified in their basic instruments of authorization and
to continue for two hours after such specified times.
(3) Class D stations located within co-channel 0.5 mV/m-50% skywave
contours of U.S. Class A stations to commence PSSA operation at sunset
times specified in their basic instruments of authorization and to
continue such operation until two hours past such specified times, or
until sunset at the nearest Class A station located west of the Class D
station, whichever is earlier. Class D stations located west of the
Class A station do not qualify for PSSA operation.
(4) Class D stations on regional channels to commence PSSA operation
at sunset times specified on their basic instruments of authorization
and to continue such operation until two hours past such specified
times.
(e) Procedural Matters. (1) Applications for PSRA and PSSA operation
are not required. Instead, the FCC will calculate the periods of such
operation and the power to be used pursuant to the provisions of this
section and the protection requirements contained in applicable
international agreements. Licensees will be notified of permissible
power and times of operation. Presunrise and Postsunset service
authority permits operation on a secondary basis and does not confer
license rights. No request for such authority need be filed. However,
stations intending to operate PSRA or PSSA
[[Page 31]]
shall submit by letter, signed as specified in Sec. 73.3513, the
following information:
(i) Licensee name, station call letters and station location,
(ii) Indication as to whether PSRA operation, PSSA operation, or
both, is intended by the station,
(iii) A description of the method whereby any necessary power
reduction will be achieved.
(2) Upon submission of the required information, such operation may
begin without further authority.
(f) Technical criteria. Calculations to determine whether there is
objectionable interference will be determined in accordance with the AM
Broadcast Technical Standards, Secs. 73.182 through 73.190, and
applicable international agreements. Calculations will be performed
using daytime antenna systems, or critical hours antenna systems when
specified on the license. In performing calculations to determine
assigned power and times for commencement of PSRA and PSSA operation,
the following standards and criteria will be used:
(1) Class D stations operating in accordance with paragraphs (b)(1),
(b)(2), (d)(1), and (d)(2) of this section are required to protect the
nighttime 0.5 mV/m-50% skywave contours of co-channel Class A stations.
Where a 0.5 mV/m-50% skywave signal from the Class A station is not
produced, the 0.5 mV/m groundwave contour shall be protected.
(2) Class D stations are required to fully protect foreign Class B
and Class C stations when operating PSRA and PSSA; Class D stations
operating PSSA are required to fully protect U.S. Class B stations. For
purposes of determining protection, the nighttime RSS limit will be used
in the determination of maximum permissible power.
(3) Class D stations operating in accordance with paragraphs (d)(2)
and (d)(3) of this section are required to restrict maximum 10% skywave
radiation at any point on the daytime 0.1 mV/m groundwave contour of a
co-channel Class A station to 25 V/m. The location of the 0.1
mV/m contour of the Class A station will be determined by use of Figure
M3, Estimated Ground Conductivity in the United States. When the 0.1 mV/
m contour extends beyond the national boundary, the international
boundary shall be considered the 0.1 mV/m contour.
(4) Class B and Class D stations on regional channels operating PSRA
and PSSA (Class D only) are required to provide full protection to co-
channel foreign Class B and Class C stations.
(5) Class D stations on regional channels operating PSSA beyond 6
p.m. local time are required to fully protect U.S. Class B stations.
(6) The protection that Class D stations on regional channels are
required to provide when operating PSSA until 6 p.m. local time is as
follows.
(i) For the first half-hour of PSSA operation, protection will be
calculated at sunset plus 30 minutes at the site of the Class D station;
(ii) For the second half-hour of PSSA operation, protection will be
calculated at sunset plus one hour at the site of the Class D station;
(iii) For the second hour of PSSA operation, protection will be
calculated at sunset plus two hours at the site of the Class D station;
(iv) Minimum powers during the period until 6 p.m. local time shall
be permitted as follows:
------------------------------------------------------------------------
Calculated power Adjusted minimum power
------------------------------------------------------------------------
From 1 to 45 watts.................... 50 watts.
Above 45 to 70 watts.................. 75 watts.
Above 70 to 100 watts................. 100 watts.
------------------------------------------------------------------------
(7) For protection purposes, the nighttime 25% RSS limit will be
used in the determination of maximum permissible power.
(g) Calculations made under paragraph (d) of this section may not
take outstanding PSRA or PSSA operations into account, nor will the
grant of a PSRA or PSSA confer any degree of interference protection on
the holder thereof.
(h) Operation under a PSRA or PSSA is not mandatory, and will not be
included in determining compliance with the requirements of
Sec. 73.1740. To the extent actually undertaken, however, presunrise
operation will be considered by the FCC in determining overall
compliance with past programming representations and station policy
concerning commercial matter.
[[Page 32]]
(i) The PSRA or PSSA is secondary to the basic instrument of
authorization with which it is to be associated. The PSRA or PSSA may be
suspended, modified, or withdrawn by the FCC without prior notice or
right to hearing, if necessary to resolve interference conflicts, to
implement agreements with foreign governments, or in other circumstances
warranting such action. Moreover, the PSRA or PSSA does not extend
beyond the term of the basic authorization.
(j) The Commission will periodically recalculate maximum permissible
power and times for commencing PSRA and PSSA for each Class D station
operating in accordance with paragraph (c) of this section. The
Commission will calculate the maximum power at which each individual
station may conduct presunrise operations during extended daylight
saving time and shall issue conforming authorizations. These original
notifications and subsequent notifications should be associated with the
station's authorization. Upon notification of new power and time of
commencing operation, affected stations shall make necessary adjustments
within 30 days.
(k) A PSRA and PSSA does not require compliance with Secs. 73.45,
73.182 and 73.1560 where the operation might otherwise be considered as
technically substandard. Further, the requirements of paragraphs (a)(5),
(b)(2), (c)(2), and (d)(2) of Sec. 73.1215 concerning the scale ranges
of transmission system indicating instruments are waived for PSRA and
PSSA operation except for the radio frequency ammeters used in
determining antenna input power.
(1) A station having an antenna monitor incapable of functioning at
the authorized PSRA and PSSA power when using a directional antenna
shall take the monitor reading using an unmodulated carrier at the
authorized daytime power immediately prior to commencing PSRA or PSSA
operations. Special conditions as the FCC may deem appropriate may be
included for PSRA or PSSA to insure operation of the transmitter and
associated equipment in accordance with all phases of good engineering
practice.
[56 FR 64860, Dec. 12, 1991; 57 FR 43290, Sept. 18, 1992, as amended at
58 FR 27950, May 12, 1993]
Sec. 73.127 Use of multiplex transmission.
The licensee of an AM broadcast station may use its AM carrier to
transmit signals not audible on ordinary consumer receivers, for both
broadcast and non-broadcast purposes subject to the following
requirements:
(a) Such use does not disrupt or degrade the station's own programs
or the programs of other broadcast stations.
(b) AM carrier services that are common carrier in nature are
subject to common carrier regulation. Licensees operating such services
are required to apply to the FCC for the appropriate authorization and
to comply with all policies and rules applicable to the service.
Responsibility for making the initial determinations of whether a
particular activity is common carriage rests with the AM station
licensee. Initial determinations by licensees are subject to FCC
examination and may be reviewed at the FCC's discretion. AM carrier
services that are private carrier in nature must notify the Licensing
Division of the Private Radio Bureau at Gettysburg, Pennsylvania 17325,
by letter, prior to initiating service certifying compliance with 47 CFR
parts 90 and 94.
(c) AM carrier services are of a secondary nature under the
authority of the AM station authorization, and the authority to provide
such communications services may not be retained or transferred in any
manner separate from the station's authorization. The grant or renewal
of an AM station permit or license is not furthered or promoted by
proposed or past service. The permittee or licensee must establish that
the broadcast operation is in the public interest wholly apart from the
subsidiary communications services provided.
(d) The station identification, delayed recording, and sponsor
identification announcements required by
[[Page 33]]
Sec. Sec. 73.1201, 73.1208, and 73.1212 are not applicable to leased
communications services transmitted via services that are not of a
general broadcast program nature.
(e) The licensee or permittee must retain control over all material
transmitted in a broadcast mode via the station's facilities, with the
right to reject any material that it deems inappropriate or undesirable.
(f) Installation of the multiplex transmitting equipment must
conform with the requirements of Sec. 73.1690(e).
[47 FR 25345, June 11, 1982, as amended at 49 FR 34015, Aug. 28, 1984;
51 FR 41629, Nov. 18, 1986; 51 FR 44478, Dec. 10, 1986]
Sec. 73.128 AM stereophonic broadcasting.
(a) An Am broadcast station may, without specific authority from the
FCC, transmit stereophonic programs upon installation of type accepted
stereophonic transmitting equipment and the necessary measuring
equipment to determine that the stereophonic transmissions conform to
the modulation characteristics specified in paragraphs (b) and (c) of
this section. Stations transmitting stereophonic programs prior to March
21, 1994 may continue to do so until March 21, 1995 as long as they
continue to comply with the rules in effect prior to March 21, 1994.
(b) The following limitations on the transmitted wave must be met to
insure compliance with the occupied bandwidth limitations, compatibility
with AM receivers using envelope detectors, and any applicable
international agreements to which the FCC is a party:
(1) The transmitted wave must meet the occupied bandwidth
specifications of Sec. 73.44 under all possible conditions of program
modulation. Compliance with requirement shall be demonstrated either by
the following specific modulation tests or other documented test
procedures that are to be fully described in the application for type
acceptance and the transmitting equipment instruction manual. (See
Sec. 2.983(d)(8) and (j)).
(i) Main channel (L+R) under all conditions of amplitude modulations
for the stereophonic system but not exceeding amplitude modulation on
negative peaks of 100%.
(ii) Stereophonic (L-R) modulated with audio tones of the same
amplitude at the transmitter input terminals as in paragraph (b)(i) of
this section but with the phase of either the L or R channel reversed.
(iii) Left and Right Channel only, under all conditions of
modulation for the stereophonic system in use but not exceeding
amplitude modulation on negative peaks of 100%.
(c) Effective on December 20, 1994, stereophonic transmissions shall
conform to the following additional modulation characteristics:
(1) The audio response of the main (L+R) channel shall conform to
the requirements of the ANSI/EIA-549-1988, NRSC-1 AM Preemphasis/
Deemphasis and Broadcast Transmission Bandwidth Specifications (NRSC-1).
(2) The left and right channel audio signals shall conform to
frequency response limitations dictated by ANSI/EIA-549-1988.
(3) The stereophonic difference (L-R) information shall be
transmitted by varying the phase of the carrier in accordance with the
following relationship:
[GRAPHIC] [TIFF OMITTED] TR20DE93.000
where:
L(t)=audio signal left channel,
R(t)=audio signal right channel,
m=modulation factor, and
mpeak(L(t)+R(t))=1 for 100% amplitude modulation,
mpeak(L(t)-R(t))=1 for 100% phase modulation.
[[Page 34]]
(4) The carrier phase shall advance in a positive direction when a
left channel signal causes the transmitter envelope to be modulated in a
positive direction. The carrier phase shall likewise retard (negative
phase change) when a right channel signal causes the transmitter
envelope to be modulated in a positive direction. The phase modulation
shall be symmetrical for the condition of difference (L-R) channel
information sent without the presence of envelope modulation.
(5) Maximum angular modulation, which occurs on negative peaks of
the left or right channel with no signal present on the opposite channel
(L(t)=-0.75, R(t)=0, or R(t)=-0.75, L(t)=0) shall not exceed 1.25
radians.
(6) A peak phase modulation of +/-0.785 radians under the condition
of difference (L-R) channel modulation and the absence of envelope (L+R)
modulation and pilot signal shall represent 100% modulation of the
difference channel.
(7) The composite signal shall contain a pilot tone for indication
of the presence of stereophonic information. The pilot tone shall
consist of a 25 Hz tone, with 3% or less total harmonic distortion and a
frequency tolerance of +/- 0.1 H2, which modulates the
carrier phase +/- 0.05 radians peak, corresponding to 5% L-R modulation
when no other modulation is present. The injection level shall be 5%,
with a tolerance of +1, -1%.
(8) The composite signal shall be described by the following
expression:
[GRAPHIC] [TIFF OMITTED] TR20DE93.001
where:
A=the unmodulated carrier voltage
m=the modulation index
Csn=the magnitude of the nth term of the sum signal
Cdn=the magnitude of the nth term of the difference signal
sn=the nth order angular velocity of the sum signal
dn=the nth order angular velocity of the difference
signal
c=the angular velocity of the carrier
[[Page 35]]
[GRAPHIC] [TIFF OMITTED] TR20DE93.002
Asn and Bsn are the nth sine and cosine
coefficients of Csn
Adn and Bdn are the nth sine and cosine
coefficients of Cdn
[58 FR 66301, Dec. 20, 1993]
Sec. 73.132 Territorial exclusivity.
No licensee of an AM broadcast station shall have any arrangement
with a network organization which prevents or hinders another station
serving substantially the same area from broadcasting the network's
programs not taken by the former station, or which prevents or hinders
another station serving a substantially different area from broadcasting
any program of the network organization: Provided, however, That this
section does not prohibit arrangements under which the station is
granted first call within its primary service area upon the network's
programs. The term ``network organization'' means any organization
originating program material, with or without commercial messages, and
furnishing the same to stations interconnected so as to permit
simultaneous broadcast by all or some of them. However, arrangements
involving only stations under common ownership, or only the rebroadcast
by one station or programming from another with no compensation other
than a lump-sum payment by the station rebroadcasting, are not
considered arrangements with a network organization. The term
``arrangement'' means any contract, arrangement or understanding,
expressed or implied.
[42 FR 16422, Mar. 28, 1977]
Sec. 73.150 Directional antenna systems.
(a) For each station employing a directional antenna, all
determinations of service provided and interference caused shall be
based on the inverse distance fields of the standard radiation pattern
for that station. (As applied to nighttime operation the term ``standard
radiation pattern'' shall include the radiation pattern in the
horizontal plane, and radiation patterns at angles above this plane.)
(1) Parties submitting directional antenna patterns pursuant to this
section and Sec. 73.152 (Modified standard pattern) must submit patterns
which are tabulated and plotted in units of millivolts per meter at 1
kilometer.
Note: Applications for new stations and for changes (both minor and
major) in existing stations must use a standard pattern.
(b) The following data shall be submitted with an application for
authority to install a directional antenna:
(1) The standard radiation pattern for the proposed antenna in the
horizontal plane, and where pertinent, tabulated values for the
azimuthal radiation patterns for angles of elevation up to and including
60 degrees, with a separate section for each increment of 5 degrees.
(i) The standard radiation pattern shall be based on the theoretical
radiation pattern. The theoretical radiation pattern shall be calculated
in accordance with the following mathematical expression:
[[Page 36]]
[GRAPHIC] [TIFF OMITTED] TC13NO91.014
where:
E(,)th Represents the
theoretical inverse distance fields at one kilometer for the
given azimuth and elevation.
k Represents the multiplying constant which determines the basic
pattern size. It shall be chosen so that the effective field
(RMS) of the theoretical pattern in the horizontal plane shall
be no greater than the value computed on the assumption that
nominal station power (see Sec. 73.14) is delivered to the
directional array, and that a lumped loss resistance of one
ohm exists at the current loop of each element of the array,
or at the base of each element of electrical height lower than
0.25 wavelength, and no less than the valuerequired by
Sec. 73.189(b)(2) of this part for a station of the class and
nominal power for which the pattern is designed.
n Represents the number of elements (towers) in the directional array.
i Represents the ith element in the array.
Fi Represents the field ratio of the ith element
in the array.
i (th antenna. This value
depends on the tower height, as well as whether the tower is
top-loaded or sectionalized. The various formulas for
computing fi (i Represents the electrical spacing of the ith
tower from the reference point.
i Represents the orientation (with respect to true
north) of the ith tower.
Represents the azimuth (with respect to true north).
i Represents the electrical phase angle of the
current in the ith tower.
The standard radiation pattern shall be constructed in accordance
with the following mathematical expression:
[GRAPHIC] [TIFF OMITTED] TC01MR91.063
where:
E(,)std represents the inverse
distance fields at one kilometer which are produced by the directional
antenna in the horizontal and vertical planes.
E(,)th represents the theoretical inverse
distance fields at one kilometer as computed in accordance with Eq. 1,
above.
Q is the greater of the following two quantities: 0.025g()
Erss or 10.0g() PkW
where:
g() is the vertical plane distribution factor,
f(), for the shortest element in the array (see Eq. 2, above;
also see Sec. 73.190, Figure 5). If the shortest element has an
electrical height in excess of 0.5 wavelength, g() shall be
computed as follows:
[GRAPHIC] [TIFF OMITTED] TC01MR91.064
Erss is the root sum square of the amplitudes of the
inverse fields of the elements of the array in the horizontal plane, as
used in the expression for E(,)th (see
Eq. 1, above), and is computed as follows:
[GRAPHIC] [TIFF OMITTED] TC01MR91.065
PkW is the nominal station power expressed in kilowatts,
see Sec. 73.14. If the nominal power is less than one kilowatt,
PkW=1.
(ii) Where the orthogonal addition of the factor Q to
E(,)th results in a standard pattern
whose minimum fields are lower than those found necessary or desirable,
these fields may be increased by appropriate adjustment of the
parameters of E(,)th.
(2) All patterns shall be computed for integral multiples of five
degrees, beginning with zero degrees representing true north, and, shall
be plotted to the largest scale possible on unglazed letter-size paper
(main engraving approximately 7" x 10") using only scale divisions and
subdivisions of 1,2,2.5, or 5 times 10nth. The horizontal
plane pattern shall be plotted on polar coordinate paper, with the zero
degree point corresponding to true north. Patterns for elevation angles
above the horizontal plane may be plotted in polar or
[[Page 37]]
rectangular coordinates, with the pattern for each angle of elevation on
a separate page. Rectangular plots shall begin and end at true north,
with all azimuths labelled in increments of not less than 20 degrees. If
a rectangular plot is used, the ordinate showing the scale for radiation
may be logarithmic. Such patterns for elevation angles above the
horizontal plane need be submitted only upon specific request by
Commission staff. Minor lobe and null detail occurring between
successive patterns for specific angles of elevation need not be
submitted. Values of field strength on any pattern less than ten percent
of the maximum field strength plotted on that pattern shall be shown on
an enlarged scale. Rectangular plots with a logarithmic ordinate need
not utilize an expanded scale unless necessary to show clearly the minor
lobe and null detail.
(3) The effective (RMS) field strength in the horizontal plane of
E(,)std,
E(,)th and the root-sum-square (RSS)
value of the inverse distance fields of the array elements at 1
kilometer, derived from the equation for
E(,)th. These values shall be tabulated
on the page on which the horizontal plane pattern is plotted, which
shall be specifically labelled as the Standard Horizontal Plane Pattern.
(4) Physical description of the array, showing:
(i) Number of elements.
(ii) Type of each element (i.e., guyed or self-supporting, uniform
cross section or tapered (specifying base dimensions), grounded or
insulated, etc.)
(iii) Details of top loading, or sectionalizing, if any.
(iv) Height of radiating portion of each element in feet (height
above base insulator, or base, if grounded).
(v) Overall height of each element above ground.
(vi) Sketch of antenna site, indicating its dimensions, the location
of the antenna elements, thereon, their spacing from each other, and
their orientation with respect to each other and to true north, the
number and length of the radials in the ground system about each
element, the dimensions of ground screens, if any, and bonding between
towers and between radial systems.
(5) Electrical description of the array, showing:
(i) Relative amplitudes of the fields of the array elements.
(ii) Relative time phasing of the fields of the array elements in
degrees leading [+] or lagging [-].
(iii) Space phasing between elements in degrees.
(iv) Where waiver of the content of this section is requested or
upon request of the Commission staff, all assumptions made and the basis
therefor, particularly with respect to the electrical height of the
elements, current distribution along elements, efficiency of each
element, and ground conductivity.
(v) Where waiver of the content of this section is requested, or
upon request of the Commission staff, those formulas used for computing
E(,)th and
E(,)std. Complete tabulation of final
computed data used in plotting patterns, including data for the
determination of the RMS value of the pattern, and the RSS field of the
array.
(6) The values used in specifying the parameters which describe the
array must be specified to no greater precision than can be achieved
with available monitoring equipment. Use of greater precision raises a
rebuttable presumption of instability of the array. Following are
acceptable values of precision; greater precision may be used only upon
showing that the monitoring equipment to be installed gives accurate
readings with the specified precision.
(i) Field Ratio: 3 significant figures.
(ii) Phasing: to the nearest 0.1 degree.
(iii) Orientation (with respect to a common point in the array, or
with respect to another tower): to the nearest 0.1 degree.
(iv) Spacing (with respect to a common point in the array, or with
respect to another tower): to the nearest 0.1 degree.
(v) Electrical Height (for all parameters listed in Section 73.160):
to the nearest 0.1 degree.
(vi) Theoretical RMS (to determine pattern size): 4 significant
figures.
(vii) Additional requirements relating to modified standard patterns
appear in Sec. 73.152(c)(3) and (c)(4).
[[Page 38]]
(7) Any additional information required by the application form.
(c) Sample calculations for the theoretical and standard radiation
follow. Assume a five kilowatt (nominal power) station with a
theoretical RMS of 685 mV/m at one kilometer. Assume that it is an in-
line array consisting of three towers. Assume the following parameters
for the towers:
------------------------------------------------------------------------
Field Relative Relative Relative
Tower ratio phasing spacing orientation
------------------------------------------------------------------------
1............................. 1.0 -128.5 0.0 0.0
2............................. 1.89 0.0 110.0 285.0
3............................. 1.0 128.5 220.0 285.0
------------------------------------------------------------------------
Assume that tower 1 is a typical tower with an electrical height of
120 degrees. Assume that tower 2 is top-loaded in accordance with the
method described in Sec. 73.160(b)(2) where A is 120 electrical degrees
and B is 20 electrical degrees. Assume that tower 3 is sectionalized in
accordance with the method described in Sec. 73.160(b)(3) where A is 120
electrical degrees, B is 20 electrical degrees, C is 220 electrical
degrees, and D is 15 electrical degrees.
The multiplying constant will be 323.6.
Following is a tabulation of part of the theoretical pattern:
------------------------------------------------------------------------
Vertical
Azimuth 0 30 60 angle
------------------------------------------------------------------------
0........................... 15.98 62.49 68.20
105......................... 1225.30 819.79 234.54
235......................... 0.43 18.46 34.56
247......................... 82.62 51.52 26.38
------------------------------------------------------------------------
If we further assume that the station has a standard pattern, we
find that Q, for
Sec. 73.151 Field strength measurements to establish performance of directional antennas.
(a) In addition to the information required by the license
application form, the following showing must be submitted to establish,
for each mode of directional operation, that the effective measured
field strength (RMS) at 1 kilometer (km) is not less than 85 percent of
the effective measured field strength (RMS) specified for the standard
radiation pattern, or less than that specified in Sec. 73.189(b) for the
class of station involved, whichever is the higher value, and that the
measured field strength at 1 km in any direction does not exceed the
field shown in that direction on the standard radiation pattern for that
mode of directional operation:
(1) A tabulation of inverse field strengths in the horizontal plane
at 1 km, as determined from field strength measurements taken and
analyzed in accordance with Sec. 73.186, and a statement of the
effective measured field strength (RMS). Measurements shall be made in
at least the following directions:
(i) Those specified in the instrument of authorization.
(ii) In major lobes. Generally at least three radials are necessary
to establish a major lobe; however, additional radials may be required.
(iii) Along sufficient number of other radials to establish the
effective field. In the case of a relatively simple directional antenna
pattern, approximately five radials in addition to those in paragraphs
(a)(1) (i) and (ii) of this section are sufficient. However, when more
complicated patterns are involved, that is, patterns having several or
sharp lobes or nulls, measurements shall be taken along as many radials
as may be necessary, to definitely establish the pattern(s).
[[Page 39]]
(2) A tabulation of:
(i) The phase difference of the current in each other element with
respect to the reference element, and whether the current leads (+) or
lags (-) the current in the reference element, as indicated by the
station's antenna monitor.
(ii) The ratio of the amplitude of the radio frequency current in
each other element to the current in the reference element, as indicated
on the station's antenna monitor.
(iii) The value of the radio frequency current at the base of each
element, and the ratio of the current in each other element to the base
current in the reference element. If there are substantial differences
between the ratios established in paragraph (a)(2)(ii) of this section
and the ratios computed in this paragraphs (a)(2)(iii) and/or if there
are substantial differences between the parameters established in
paragraphs (a)(2) (i) and (ii) of this section and this paragraph
(a)(2)(iii), and those used in the design of the standard radiation
pattern, a full explanation of the reasons for these differences shall
be given.
(3) The actual field strength measured at each monitoring point
established in the various directions for which a limiting field was
specified in the instrument of authorization together with accurate and
detailed description of each monitoring point together with ordinary
snapshots, clear and sharp, taken with the field strength meter in its
measuring position and with the camera so located that its field of view
takes in as many pertinent landmarks as possible. In addition, the
directions for proceeding to each monitoring point together with a rough
sketch or map upon which has been indicated the most accessible
approaches to the monitoring points should be submitted.
(b) For stations authorized to operate with simple directional
antenna systems (e.g., two towers) in the 1605-1705 kHz band, the
measurements to support pattern RMS compliance referred to in paragraphs
(a)(1)(ii) and (a)(1)(iii) of this section are not required. In such
cases, measured radials are required only in the direction of short-
spaced allotments, or in directions specifically identified by the
Commission.
[36 FR 919, Jan. 20, 1971, as amended at 42 FR 36828, July 18, 1977; 49
FR 23348, June 6, 1984; 50 FR 32416, Aug. 12, 1985; 56 FR 64862, Dec.
12, 1991; 63 FR 33876, June 22, 1998]
Sec. 73.152 Modification of directional antenna data.
(a) If, after construction and final adjustment of a directional
antenna, a measured inverse distance field in any direction exceeds the
field shown on the standard radiation pattern for the pertinent mode of
directional operation, an application shall be filed, specifying a
modified standard radiation pattern and/or such changes as may be
required in operating parameters so that all measured effective fields
will be contained within the modified standard radiation pattern.
(b) Normally, a modified standard pattern is not acceptable at the
initial construction permit stage, before a proof-of-performance has
been completed. However, in certain cases, where it can be shown that
modification is necessary, a modified standard pattern will be
acceptable at the initial construction permit stage. Following is a non-
inclusive list of items to be considered in determining whether a
modification is acceptable at the initial construction permit stage:
(1) When the proposed pattern is essentially the same as an existing
pattern at the same antenna site. (e.g., A DA-D station proposing to
become a DA-1 station.)
(2) Excessive reradiating structures, which should be shown on a
plat of the antenna site and surrounding area.
(3) Other environmental factors; they should be fully described.
(4) Judgment and experience of the engineer preparing the
engineering portion of the application. This must be supported with a
full discussion of the pertinent factors.
(c) The following general principles shall govern the situations in
paragraphs (a) and (b) in this section:
(1) Where a measured field in any direction will exceed the
authorized standard pattern, the license application may specify the
level at which the input power to the antenna shall be limited to
maintain the measured field
[[Page 40]]
at a value not in excess of that shown on the standard pattern, and
shall specify the common point current corresponding to this power
level. This value of common point current will be specified on the
license for that station.
(2) Where any excessive measured field does not result in
objectionable interference to another station, a modification of
construction permit application may be submitted with a modified
standard pattern encompassing all measured fields. The modified standard
pattern shall supersede the previously submitted standard radiation
pattern for that station in the pertinent mode of directional operation.
Following are the possible methods of creating a modified standard
pattern:
(i) The modified pattern may be computed by making the entire
pattern larger than the original pattern (i.e., have a higher RMS value)
if the measured fields systematically exceed the confines of the
original pattern. The larger pattern shall be computed by using a larger
multiplying constant, k, in the theoretical pattern equation (Eq. 1) in
Sec. 73.150(b)(1).
(ii) Where the measured field exceeds the pattern in discrete
directions, but objectionable interference does not result, the pattern
may be expanded over sectors including these directions. When this
``augmentation'' is desired, it shall be achieved by application of the
following equation:
E(,aug = {
E(,std }2+
A{g(A/S }2
where:
E(,std is the standard
pattern field at some particular azimuth and elevation angle, before
augmentation, computed pursuant to Eq. 2, Sec. 73.150(b)(1)(i).
E(,aug. is the field in
the direction specified above, after augmentation.
A=E(,
O)2aug-E(,
O)2std in which is the central azimuth
of augmentation. E(, O)aug and
E(, O)std are the fields in the
horizontal plane at the central azimuth of augmentation.
Note: ``A'' must be positive, except during the process of
converting non-standard patterns to standard patterns pursuant to the
Report and Order in Docket No. 21473, and in making minor changes to
stations with patterns developed during the conversion. However, even
when ``A'' is negative, ``A'' cannot be so negative that
E(,)aug is less than
E(,th at any azimuth or
vertical elevation angle.
g(A is the absolute horizontal angle between the azimuth
at which the augmented pattern value is being computed and the central
azimuth of augmentation. (DA cannot exceed 1/2 S.)
In the case where there are spans which overlap, the above formula
shall be applied repeatedly, once for each augmentation, in ascending
order of central azimuth of augmentation, beginning with zero degrees
representing true North. Note that, when spans overlap, there will be,
in effect, an augmentation of an augmentation. And, if the span of an
earlier augmentation overlaps the central azimuth of a later
augmentation, the value of ``A'' for the later augmentation will be
different than the value of ``A'' without the overlap of the earlier
span.
(iii) A combination of paragraphs (c)(2) (i) and (ii), of this
section, with (i) being applied before (ii) is applied.
(iv) Where the measured inverse distance field exceeds the value
permitted by the standard pattern, and augmentation is allowable under
the terms of this section, the requested amount of augmentation shall be
centered upon the azimuth of the radial upon which the excessive
radiation was measured and shall not exceed the following:
(A) The actual measured inverse distance field value, where the
radial does not involve a required monitoring point.
(B) 120% of the actual measured inverse field value, where the
radial has a monitoring point required by the instrument of
authorization.
Whereas some pattern smoothing can be accommodated, the extent of the
requested span(s) shall be minimized and in no case shall a requested
augmentation span extend to a radial azimuth for which the analyzed
measurement data does not show a need for augmentation.
[[Page 41]]
(3) A Modified Standard Pattern shall be specifically labeled as
such, and shall be plotted in accordance with the requirements of
paragraph (b)(2) of Sec. 73.150. The effective (RMS) field strength in
the horizontal plane of E(,)std,
E(,)th, and the root sum square
(RSS) value of the inverse fields of the array elements (derived from
the equation for E(,)th), shall
be tabulated on the page on which the horizontal plane pattern is
plotted. Where sector augmentation has been employed in designing the
modified pattern, the direction of maximum augmentation (i.e., the
central azimuth of augmentation) shall be indicated on the horizontal
plane pattern for each augmented sector, and the limits of each sector
shall also be shown. Field values within an augmented sector, computed
prior to augmentation, shall be depicted by a broken line.
(4) There shall be submitted, for each modified standard pattern,
complete tabulations of final computed data used in plotting the
pattern. In addition, for each augmented sector, the central azimuth of
augmentation, span, and radiation at the central azimuth of augmentation
(E(,)aug) shall be tabulated.
(5) The parameters used in computing the modified standard pattern
shall be specified with realistic precision. Following is a list of the
maximum acceptable precision:
(i) Central Azimuth of Augmentation: to the nearest 0.1 degree.
(ii) Span: to the nearest 0.1 degree.
(iii) Radiation at Central Azimuth of Augmentation: 4 significant
figures.
(d) Sample calculations for a modified standard pattern follow.
First, assume the existing standard pattern in Sec. 73.150(c). Then,
assume the following augmentation parameters:
------------------------------------------------------------------------
Radiation
Central at
Augmentation number azimuth Span central
azimuth
------------------------------------------------------------------------
1.......................................... 110 40 1,300
2.......................................... 240 50 52
3.......................................... 250 10 130
------------------------------------------------------------------------
Following is a tabulation of part of the modified standard pattern:
------------------------------------------------------------------------
Vertical
Azimuth 0 30 60 angle
------------------------------------------------------------------------
0........................... 28.86 68.05 72.06 .........
105......................... 1,299.42 872.14 254.21 .........
235......................... 39.00 35.74 38.71 .........
247......................... 100.47 66.69 32.78 .........
------------------------------------------------------------------------
[46 FR 11992, Feb. 12, 1981, as amended at 56 FR 64862, Dec. 12, 1991]
Sec. 73.153 Field strength measurements in support of applications or evidence at hearings.
In the determination of interference, groundwave field strength
measurements will take precedence over theoretical values, provided such
measurements are properly taken and presented. When measurements of
groundwave signal strength are presented, they shall be sufficiently
complete in accordance with Sec. 73.186 to determine the field strength
at 1 mile in the pertinent directions for that station. The antenna
resistance measurements required by Sec. 73.186 need not be taken or
submitted.
[44 FR 36037, June 20, 1979, as amended at 56 FR 64862, Dec. 12, 1991]
Sec. 73.154 AM directional antenna partial proof of performance measurements.
(a) A partial proof of performance consists of at least 10 field
strength measurements made on each of the radials established in the
latest complete proof of performance of the directional antenna system.
(b) The measurements are to be made within 2 to 10 miles (3 to 16
kilometers) from the center of the antenna array. When a monitoring
point as designated on the station authorization is on a particular
radial, one of the radial measurements must be made at that point.
(c) The results of the measurements are to be analyzed in either of
two methods. Either the arithmetic average or the logarithmic average of
the ratios of the field strength at each measurement point along each
radial to the corresponding field strength in the most recent complete
proof of performance may be used to establish the inverse distance
fields. (The logarithmic average for each radial is the antilogarithm of
the mean of the logarithms of the ratios of field strength
[[Page 42]]
(new to old) for each measurement location along a given radial).
(d) The result of the most recent partial proof of performance
measurements and analysis is to be retained in the station records
available to the FCC upon request.
[50 FR 47054, Nov. 14, 1985]
Sec. 73.157 Antenna testing during daytime.
(a) The licensee of a station using a directional antenna during
daytime or nighttime hours may, without further authority, operate
during daytime hours with the licensed nighttime directional facilities
or with a nondirectional antenna when conducting monitoring point field
strength measurements or antenna proof of performance measurements.
(b) Operation pursuant to this section is subject to the following
conditions:
(1) No harmful interference will be caused to any other station.
(2) The FCC may notify the licensee to modify or cease such
operation to resolve interference complaints or when such action may
appear to be in the public interest, convenience and necessity.
(3) Such operation shall be undertaken only for the purpose of
taking monitoring point field strength measurements or antenna proof of
performance measurements, and shall be restricted to the minimum time
required to accomplish the measurements.
(4) Operating power in the nondirectional mode shall be adjusted to
the same power as was utilized for the most recent nondirectional proof
of performance covering the licensed facilities.
[50 FR 30947, July 31, 1985]
Sec. 73.158 Directional antenna monitoring points.
(a) When a licensee of a station using a directional antenna system
finds that a field monitoring point, as specified on the station
authorization, is no longer accessible for use or is unsuitable because
of nearby construction or other disturbances to the measured field, an
informal application to change the monitoring point location is to be
promptly submitted to the FCC in Washington, DC. The application must
include the following information:
(1) A partial proof of performance conducted on the radial
containing the monitoring point to be changed.
(2) A written description of the routing to the new selected
monitoring point.
(3) A map showing the location and routing to the new selected
monitoring point.
(4) A photograph showing the new monitoring point in relation to
nearby permanent landmarks that can be used in locating the point
accurately at all times throughout the year. Do not use seasonal or
temporary features in either the written descriptions or photographs as
landmarks for locating field points.
(b) When the descriptive routing to reach any of the monitoring
points as shown on the station license is no longer correct due to road
or building construction or other changes, the licensee must prepare and
file with the FCC, in Washington, DC, a request for a corrected station
license showing the new routing description. A copy of the description
is to be posted with the existing station license. The notification is
to include the information specified in paragraphs (a) (2) and (3) of
this section.
[47 FR 28387, June 30, 1982]
Sec. 73.160 Vertical plane radiation characteristics, f(,
is 0 degrees in the horizontal plane, and 90 degrees when perpendicular
to the horizontal plane. The vertical plane radiation characteristic is
referred to as f(.
E(O) is the radiation from the tower in the horizontal plane.
(b) Listed below are formulas for f( is the difference between H and A; H-A.
See Figure 2 of this section.
[[Page 46]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.067
(c) One of the above f(=115
electrical degrees (235-120):
------------------------------------------------------------------------
Sec. 73.182 Engineering standards of allocation.
(a) Sections 73.21 to 73.37, inclusive, govern allocation of
facilities in the AM broadcast band 535-1705 kHz. Sec. 73.21 establishes
three classes of channels in this band, namely, clear, regional and
local. The classes and power of AM broadcast stations which will be
assigned to the various channels are set forth in Sec. 73.21. The
classifications of the AM broadcast stations are as follows:
(1) Class A stations operate on clear channels with powers no less
than 10kW nor greater than 50 kW. These stations are designed to render
primary and secondary service over an extended area, with their primary
services areas protected from objectionable interference from other
stations on the same and adjacent channels. Their secondary service
areas are protected from objectionable interference from co-channel
stations. For purposes of protection, Class A stations may be divided
into two groups, those located in any of the contiguous 48 States and
those located in Alaska in accordance with Sec. 73.25.
(i) The mainland U.S. Class A stations are those assigned to the
channels allocated by Sec. 73.25. The power of these stations shall be
50 kW. The Class A stations in this group are afforded protection as
follows:
(A) Daytime. To the 0.1 mV/m groundwave contour from stations on the
same channel, and to the 0.5 mV/m groundwave contour from stations on
adjacent channels.
(B) Nighttime. To the 0.5 mV/m-50% skywave contour from stations on
the same channels.
(ii) Class A stations in Alaska operate on the channels allocated by
Sec. 73.25 with a minimum power of 10 kW, a maximum power of 50 kW, and
an antenna efficiency of 282 mV/m/kW at 1 kilometer. Stations operating
on these channels in Alaska which have not been designated as Class A
stations in response to licensee request will continue to be considered
as Class B stations. During daytime hours a Class A station in Alaska is
protected to the 100 V/m groundwave contour from co-channel
stations. During nighttime hours, a Class A station in Alaska is
protected to the 100 V/m-50 percent skywave contour from co-
channel stations. The 0.5 mV/m groundwave contour is protected both
daytime and nighttime from stations on adjacent channels.
Note: In the Report and Order in MM Docket No. 83-807, the
Commission designated 15 stations operating on U.S. clear channels as
Alaskan Class A stations. Eleven of these stations already have Alaskan
Class A facilities and are to be protected accordingly. Permanent
designation of the other
[[Page 48]]
four stations as Alaskan Class A is conditioned on their constructing
minimum Alaskan Class A facilities no later than December 31, 1989.
Until that date or until such facilities are obtained, these four
stations shall be temporarily designated as Alaskan Class A stations,
and calculations involving these stations should be based on existing
facilities but with an assumed power of 10 kW. Thereafter, these
stations are to beprotected based on their actual Alaskan Class A
facilities. If any of these stations does not obtain Alaskan Class A
facilities in the period specified, it is to be protected as a Class B
station based on its actual facilities. These four stations may increase
power to 10 kW without regard to the impact on co-channel Class B
stations. However, power increases by these stations above 10 kW (or by
existing Alaskan Class A stations beyond their current power level) are
subject to applicable protection requirements for co-channel Class B
stations. Other stations not on the original list but which meet
applicable requirements may obtain Alaskan Class A status by seeking
such designation from the Commission. If a power increase or other
change in facilities by a station not on the original list is required
to obtain minimum Alaskan Class A facilities, any such application shall
meet the interference protection requirements applicable to an Alaskan
Class A proposal on the channel.
(2) Class B stations are stations which operate on clear and
regional channels with powers not less than 0.25 kW nor more than 50 kW.
These stations render primary service only, the area of which depends on
their geographical location, power, and frequency. It is recommended
that Class B stations be located so that the interference received from
other stations will not limit the service area to a groundwave contour
value greater than 2.0 mV/m nighttime and to the 0.5 mV/m groundwave
contour daytime, which are the values for themutual protection between
this class of stations and other stations of the same class.
Note: See Secs. 73.21(b)(1) and 73.26(b) concerning power
restrictions and classifications relative to Class B, Class C, and Class
D stations in Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands.
Stations in the above-named places that are reclassified from Class C to
Class B stations under Sec. 73.26(b) shall not be authorized to increase
power to levels that would increase the nighttime interference-free
limit of co-channel Class C stations in the conterminous United States.
(3) Class C stations operate on local channels, normally rendering
primary service to a community and the suburban or rural areas
immediately contiguous thereto, with powers not less than 0.25 kW, nor
more than 1 kW, except as provided in Sec. 73.21(c)(1). Such stations
are normally protected to the daytime 0.5 mV/m contour. On local
channels the separation required for the daytime protection shall also
determine the nighttime separation. Where directional antennas are
employed daytime by Class C stations operating with more than 0.25 kW
power, the separations required shall in no case be less than those
necessary to afford protection, assuming nondirectional operation with
0.25 kW. In no case will 0.25 kW or greater nighttime power be
authorized to a station unable to operate nondirectionally with a power
of 0.25 kW during daytime hours. The actual nighttime limitation will be
calculated. Fornighttime protection purposes, Class C stations in the 48
contiguous United States may assume that stations in Alaska, Hawaii,
Puerto Rico, and the U.S. Virgin Islands operating on 1230, 1240, 1340,
1400, 1450, and 1490 kHz are Class C stations.
(4) Class D stations operate on clear and regional channels with
daytime powers of not less than 0.25 kW (or equivalent RMS field of 141
mV/m at one kilometer if less than 0.25 kW) and not more than 50 kW.
Class D stations that have previously received nighttime authority
operate with powers of less than 0.25 kW (or equivalent RMS fields of
less than 141 mV/m at one kilometer) are not required to provide
nighttime coverage in accordance with Sec. 73.24(j) and are not
protected from interference during nighttime hours. Such nighttime
authority is permitted on the basis of full nighttime protection being
afforded to all Class A and Class B stations.
(b) When a station is already limited by interference from other
stations to a contour value greater than that normally protected for its
class, the individual received limits shall be the established standard
for such station with respect to interference from each other station.
(c) The four classes of AM broadcast stations have in general three
types of
[[Page 49]]
service areas, i.e., primary, secondary and intermittent. (See
Sec. 73.14 for the definitions of primary, secondary, and intermittent
service areas.) Class A stations render service to all three areas.
Class B stations render service to a primary area but the secondary and
intermittent service areas may be materially limited or destroyed due to
interference from other stations, depending on the station assignments
involved. Class C and Class D stations usually have only primary service
areas. Interference from other stations may limit intermittent service
areas and generally prevents any secondary service to those stations
which operate at night. Complete intermittent service may still be
obtained in many cases depending on the station assignments involved.
(d) The groundwave signal strength required to render primary
service is 2 mV/m for communities with populations of 2,500 or more and
0.5 mV/m for communities with populations of less than 2,500. See
Sec. 73.184 for curves showing distance to various groundwave field
strength contours for different frequencies and ground conductivities,
and also see Sec. 73.183, ``Groundwave signals.''
(e) A Class C station may be authorized to operate with a
directional antenna during daytime hours providing the power is at least
0.25 kW. In computing the degrees of protection which such antenna will
afford, the radiation produced by the directional antenna system will be
assumed to be no less, in any direction, than that which would result
from non-directional operation using a single element of the directional
array, with 0.25 kW.
(f) All classes of broadcast stations have primary service areas
subject to limitation by fading and noise, and interference from other
stations to the contours set out for each class of station.
(g) Secondary service is provided during nighttime hours in areas
where the skywave field strength, 50% or more of the time, is 0.5 mV/m
or greater (0.1 mV/m in Alaska). Satisfactory secondary service to
cities is not considered possible unless the field strength of the
skywave signal approaches or exceeds the value of the groundwave field
strength that is required for primary service. Secondary service is
subject to some interference and extensive fading whereas the primary
service area of a station is subject to no objectionable interference or
fading. Only Class A stations are assigned on the basis of rendering
secondary service.
Note: Standards have not been established for objectionable fading
because of the relationship to receiver characteristics. Selective
fading causes audio distortion and signal strength reduction below the
noise level, objectionable characteristics inherent in many modern
receivers. The AVC circuits in the better designed receivers generally
maintain the audio output at a sufficiently constant level to permit
satisfactory reception during most fading conditions.
(h) Intermittent service is rendered by the groundwave and begins at
the outer boundary of the primary service area and extends to a distance
where the signal strength decreases to a value that is too low to
provide any service. This may be as low as a few V/m in certain
areas and as high as several millivolts per meter in other areas of high
noise level, interference from other stations, or objectionable fading
at night. The intermittent service area may vary widely from day to
night and generally varies over shorter intervals of time. Only Class A
stations are protected from interference from other stations to the
intermittent service area.
(i) Broadcast stations are licensed to operate unlimited time,
limited time, daytime, share time, and specified hours. (See
Secs. 73.1710, 73.1725, 73.1720, 73.1715, and 73.1730.) Applications for
new stations shall specify unlimited time operation only.
(j) Section 73.24 sets out the general requirements for modifying
the facilities of a licensed station and for establishing a new station.
Sections 73.24(b) and 73.37 include interference related provisions that
be considered in connection with an application to modify the facilities
of an existing station or to establish a new station. Section 73.30
describes the procedural steps required to receive an authorization to
operate in the 1605-1705 kHz band.
(k) Objectionable nighttime interference from a broadcast station
occurs
[[Page 50]]
when, at a specified field strength contour with respect to the desired
station, the field strength of an undesired station (co-channel or first
adjacent channel, after application of proper protection ratio) exceeds
for 10% or more of the time the values set forth in these standards. The
value derived from the root-sum-square of all interference contributions
represents the extent of a station's interference-free coverage.
(1) With respect to the root-sum-square (RSS) values of interfering
field strengths referred to in this section, calculation of nighttime
interference-free service is accomplished by considering the signals on
the three channels of concern (co- and first adjacencies) in order of
decreasing magnitude, adding the squares of the values and extracting
the square root of the sum, excluding those signals which are less than
50% of the RSS values of the higher signals already included.
(2) With respect to the root-sum-square values of interfering field
strengths referred to in this section, calculation of nighttime
interference for non-coverage purposes is accomplished by considering
the signals on the three channels of concern (co- and first adjacencies)
in order of decreasing magnitude, adding the squares of the values and
extracting the square root of the sum, excluding those signals which are
less than 25% of the RSS values of the higher signals already included.
(3) With respect to the root-sum-square values of interfering field
strengths referred to in this section, calculation is accomplished by
considering the signals on the three channels of concern (co- and first
adjacencies) in order of decreasing magnitude, adding the squares of the
values and extracting the square root of the sum. The 0% exclusion
method applies only to the determination of an improvement factor value
for evaluating a station's eligibility for migration to the band 1605-
1705 kHz.
(4) The RSS value will not be considered to be increased when a new
interfering signal is added which is less than the appropriate exclusion
percentage as applied to the RSS value of the interference from existing
stations, and which at the same time is not greater than the smallest
signal included in the RSS value of interference from existing stations.
(5) It is recognized that application of the above ``50% exclusion''
method (or any exclusion method using a per cent value greater than
zero) of calculating the RSS interference may result in some cases in
anomalies wherein the addition of a new interfering signal or the
increase in value of an existing interfering signal will cause the
exclusion of a previously included signal and may cause a decrease in
the calculated RSS value of interference. In order to provide the
Commission with more realistic information regarding gains and losses in
service (as a basis for determination of the relative merits of a
proposed operation) the following alternate method for calculating the
proposed RSS values of interference will be employed wherever
applicable.
(6) In the cases where it is proposed to add a new interfering
signal which is not less than 50% (or 25%, depending on which study is
being performed) of the RSS value of interference from existing stations
or which is greater that the smallest signal already included to obtain
this RSS value, the RSS limitation after addition of the new signal
shall be calculated without excluding any signal previously included.
Similarly, in cases where it is proposed to increase the value of one of
the existing interfering signals which has been included in the RSS
value, the RSS limitation after the increase shall be calculated without
excluding the interference from any source previously included.
(7) If the new or increased signal proposed in such cases is
ultimately authorized, the RSS values of interference to other stations
affected will thereafter be calculated by the ``50% exclusion'' (or 25%
exclusion, depending on which study is being performed) method without
regard to this alternate method of calculation.
(8) Examples of RSS interference calculations:
(i) Existing interferences:
Station No. 1--1.00 mV/m.
Station No. 2--0.60 mV/m.
Station No. 3--0.59 mV/m.
Station No. 4--0.58 mV/m.
[[Page 51]]
The RSS value from Nos. 1, 2 and 3 is 1.31 mV/m; therefore interference
from No. 4 is excluded for it is less than 50% of 1.31 mV/m.
(ii) Station A receives interferences from:
Station No. 1--1.00 mV/m.
Station No. 2--0.60 mV/m.
Station No. 3--0.59 mV/m.
It is proposed to add a new limitation, 0.68 mV/m. This is more than 50%
of 1.31 mV/m, the RSS value from Nos. 1, 2 and 3. The RSS value of
Station No. 1 and of the proposed station would be 1.21 m/Vm which is
more than twice as large as the limitation from Station No. 2 or No. 3.
However, under the above provision the new signal and the three existing
interferences are nevertheless calculated for purposes of comparative
studies, resulting in an RSS value of 1.47 mV/m. However, if the
proposed station is ultimately authorized, only No. 1 and the new signal
are included in all subsequent calculations for the reason that Nos. 2
and 3 are less than 50% of 1.21 mV/m, the RSS value of the new signal
and No. 1.
(iii) Station A receives interferences from:
Station No. 1--1.00 mV/m.
Station No. 2--0.60 mV/m.
Station No. 3--0.59 mV/m.
No. 1 proposes to increase the limitation it imposes on Station A to
1.21 mV/m. Although the limitations from stations Nos. 2 and 3 are less
than 50% of the 1.21 mV/m limitation, under the above provision they are
nevertheless included for comparative studies, and the RSS limitation is
calculated to be 1.47 mV/m. However, if the increase proposed by Station
No. 1 is authorized, the RSS value then calculated is 1.21 mV/m because
Stations Nos. 2 and 3 are excluded in view of the fact that the
limitations they impose are less than 50% of 1.21 mV/m.
Note: The principles demonstrated in the previous examples for the
calculation of the 50% exclusion method also apply to calculations using
the 25% exclusion method after appropriate adjustment.
(l) Objectionable nighttime interference from a station shall be
considered to exist to a station when, at the field strength contour
specified in paragraph (q) of this section with respect to the class to
which the station belongs, the field strength of an interfering station
operating on the same channel or on a first adjacent channel after
signal adjustment using the proper protection ratio, exceeds for 10% or
more of the time the value of the permissible interfering signal set
forth opposite such class in paragraph (q) of this section.
(m) For the purpose of estimating the coverage and the interfering
effects of stations in the absence of field strength measurements, use
shall be made of Figure 8 of Sec. 73.190, which describes the estimated
effective field (for 1 kW power input) of simple vertical
omnidirectional antennas of various heights with ground systems having
at least 120 quarter-wavelength radials. Certain approximations, based
on the curve or other appropriate theory, may be made when other than
such antennas and ground systems are employed, but in any event the
effective field to be employed shall not be less than the following:
------------------------------------------------------------------------
Class of station Effective field (at 1 km)
------------------------------------------------------------------------
All Class A (except Alaskan)............... 362 mV/m.
Class A (Alaskan), B and D................. 282 mV/m.
Class C.................................... 241 mV/m.
------------------------------------------------------------------------
Note (1): When a directional antenna is employed, the radiated signal of
a broadcasting station will vary in strength in different directions,
possibly being greater than the above values in certain directions and
less in other directions depending upon the design and adjustment of
the directional antenna system. To determine the interference in any
direction, the measured or calculated radiated field (unattenuated
field strength at 1 kilometer from the array) must be used in
conjunction with the appropriate propagation curves. (See Sec. 73.185
for further discussion and solution of a typical directional antenna
case.)
Note (2): For Class B stations in Alaska, Hawaii, Puerto Rico and the
U.S. Virgin Islands, 241 mV/m shall be used.
(n) The existence or absence of objectionable groundwave
interference from stations on the same or adjacent channels shall be
determined by actual measurements made in accordance with the method
described in Sec. 73.186, or in the absence of such measurements, by
reference to the propagation curves of Sec. 73.184. The existence or
absence of objectionable interference due to skywave propagation shall
be determined by reference to Formula 2 in Sec. 73.190.
(o) Computation of Skywave Field Strength Values:
(1) Fifty Percent Skywave Field Strength Values (Clear Channel). In
computing the fifty percent skywave field strength values of a Class A
clear channel station, use shall be made of Formula 1 of Sec. 73.190,
entitled ``Skywave Field Strength'' for 50 percent of the time.
(2) Ten Percent Skywave Field Strength Values. In computing the 10%
[[Page 52]]
skywave field strength for stations on a single signal or an RSS basis,
Formula 2 in Sec. 73.190 shall be used.
(3) Determination of Angles of Departure. In calculating skywave
field strength for stations on all channels, the pertinent vertical
angle shall be determined by use of the formula in Sec. 73.190(d).
(p) The distance to any specified groundwave field strength contour
for any frequency may be determined from the appropriate curves in
Sec. 73.184 entitled ``Ground Wave Field Strength vs. Distance.''
(q) Normally protected service contours and permissible interference
signals for broadcast stations are as follows (for Class A stations, see
also paragraph (a) of this section):
----------------------------------------------------------------------------------------------------------------
Signal strength contour of area Permissible interfering signal
protected from objectionable (V/m)
Class of station Class of channel interference \1\(V/m) ---------------------------------
used ---------------------------------------
Day \2\ Night Day \2\ Night \3\
----------------------------------------------------------------------------------------------------------------
A.................. Clear............. SC 100 SC 500 50% SW SC 5 SC 25
AC 500 AC 500 GW AC 250 AC 250
A (Alaskan)........ ......do.......... SC 100 SC 100 50% SW SC 5 SC 5
AC 500 AC 500 GW AC 250 AC 250
B.................. Clear............. 500 2000 \2\ 25 25
Regional.......... ................ ................... AC 250 250
C.................. Local............. 500 No presc.\4\ SC25 Not presc.
D.................. Clear............. 500 Not presc SC 25 Not presc.
Regional.......... ................ ................... AC 250 ...............
----------------------------------------------------------------------------------------------------------------
\1\ When a station is already limited by interference from other stations to a contour of higher value than that
normally protected for its class, this higher value contour shall be the established protection standard for
such station. Changes proposed by Class A and B stations shall be required to comply with the following
restrictions. Those interferers that contribute to another station's RSS using the 50% exclusion method are
required to either reduce their contributions to that RSS by 10%, or to a level at which their contributions
no longer enter into the 50% RSS value, whichever is the lesser amount of reduction. Those interferers that
contribute to a station's RSS using the 25% exclusion method but do not contribute to that station's RSS using
the 50% exclusion method may make changes not to exceed their present contribution. Interferers not included
in a station's RSS using the 25% exclusion method are permitted to increase radiation as long as the 25%
exclusion threshold is not equalled or exceeded. In no case will a reduction be required that would result in
a contributing value that is below the pertinent value specified in the table. This note does not apply to
Class C stations; or to the protection of Class A stations which are normally protected on a single signal,
non-RSS basis.
\2\ Groundwave.
\3\ Skywave field strength for 10 percent or more of the time.
\4\ During nighttime hours, Class C stations in the contiguous 48 States may treat all Class B stations assigned
to 1230, 1240, 1340, 1400, 1450 and 1490 kHz in Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands as if
they were Class C stations.
Note: SC=Same channel; AC=Adjacent channel; SW=Skywave; GW=Groundwave
(r) The following table of logarithmic expressions is to be used as
required for determining the minimum permissible ratio of the field
strength of a desired to an undesired signal. This table shall be used
in conjunction with the protected contours specified in paragraph (q) of
this section.
----------------------------------------------------------------------------------------------------------------
Desired Groundwave to:
Frequency separation of desired to -------------------------------------------------- Desired 50% Skywave to
undesired signals (kHz) Undesired groundwave Undesired 10% Skywave Undesired 10% Skywave
(dB) (dB) (dB)
----------------------------------------------------------------------------------------------------------------
0.................................... 26 26 26
10................................... 6 6 not presc.
----------------------------------------------------------------------------------------------------------------
(s) Two stations, one with a frequency twice of the other, should
not be assigned in the same groundwave service area unless special
precautions are taken to avoid interference from the second harmonic of
the station operating on the lower frequency. Additionally, in selecting
a frequency, consideration should be given to the fact that occasionally
the frequency assignment of two stations in the same area may bear such
a relation to the intermediate frequency of some broadcast receivers as
to cause ``image'' interference, However, since this can usually be
rectified by readjustment of the intermediate frequency of such
receivers, the Commission, in general, will not take this kind of
interference into consideration when authorizing stations.
[[Page 53]]
(t) The groundwave service of two stations operating with
synchronized carriers and broadcasting identical programs will be
subject to some distortion in areas where the signals from the two
stations are of comparable strength. For the purpose of estimating
coverage of such stations, areas in which the signal ratio is between
1:2 and 2:1 will not be considered as receiving satisfactory service.
Note: Two stations are considered to be operated synchronously when
the carriers are maintained within 0.2 Hz of each other and they
transmit identical program s.
[56 FR 64862, Dec. 12, 1991; 57 FR 43290, Sept. 18, 1992, as amended at
58 FR 27950, May 12, 1993]
Sec. 73.183 Groundwave signals.
(a) Interference that may be caused by a proposed assignment or an
existing assignment during daytime hours should be determined, when
possible, by measurements on the frequency involved or on another
frequency over the same terrain and by means for the curves in
Sec. 73.184 entitled ``Ground Wave Field Strength versus Distance.''
Note: Groundwave field strength measurements will not be accepted or
considered for the purpose of establishing that interference to a
station in a foreign country other than Canada, or that the field
strength at the border thereof, would be less than indicated by the use
of the ground conductivity maps and engineering standards contained in
this part and applicable international agreements. Satisfactory
groundwave measurements offered for the purpose of demonstrating values
of conductivity other than those shown by Figure M3 in problems
involving protection of Canadian stations will be considered only if,
after review thereof, the appropriate agency of the Canadian government
notifies the Commission that they are acceptable for such purpose.
(b)(1) In all cases where measurements taken in accordance with the
requirements are not available, the groundwave strength must be
determined by means of the pertinent map of ground conductivity and the
groundwave curves of field strength versus distance. The conductivity of
a given terrain may be determined by measurements of any broadcast
signal traversing the terrain involved. Figure M3 (See Note 1) shows the
conductivity throughout the United States by general areas of reasonably
uniform conductivity. When it is clear that only one conductivity value
is involved, Figure R3 of Sec. 73.190, may be used. It is a replica of
Figure M3, and is contained in these standards. In all other situations
Figure M3 must be employed. It is recognized that in areas of limited
size or over a particular path, the conductivity may vary widely from
the values given; therefore, these maps are to be used only when
accurate and acceptable measurements have not been made.
(2) For determinations of interference and service requiring a
knowledge of ground conductivities in other countries, the ground
conductivity maps comprising Appendix 1 to Annex 2 of each of the
following international agreements may be used:
(i) For Canada, the U.S.-Canada AM Agreement, 1984;
(ii) For Mexico, the U.S.-Mexico AM Agreement, 1986; and
(iii) For other Western Hemisphere countries, the Regional Agreement
for the Medium Frequency Broadcasting Service in Region 2.
Where different conductivities appear in the maps of two countries
on opposite sides of the border, such differences are to be considered
as real, even if they are not explained by geophysical cleavages.
(c) Example of determining interference by the graphs in
Sec. 73.184:
It is desired to determine whether objectionable interference exists
between a proposed 5 kW Class B station on 990 kHz and an existing 1 kW
Class B station on first adjacent channel, 1000 kHz. The distance
between the two stations is 260 kilometers and both stations operate
nondirectionally with antenna systems that produce a horizontal
effective field of 282 in mV/m at one kilometer. (See Sec. 73.185
regarding use of directional antennas.) The ground conductivity at the
site of each station and along the intervening terrain is 6 mS/m. The
protection to Class B stations during daytime is to the 500 V/m
(0.5 Vm) contour using a 6 dB protection factor. The distance to the 500
V/m groundwave contour of the 1 kW station is determined by the
use of the appropriate curve in Sec. 73.184. Since the curve is plotted
for 100 mV/m at a 1 kilometer, to find the distance of the 0.5 mV/m
contour of the 1 kw station, it is necessary to determine the distance
to the 0.1773 m/Vm contour.
[[Page 54]]
(100 x 0.5/282=0.1773)
Using the 6 mS/m curve, the estimated radius of the 0.5 mV/m contour is
62.5 kilometers. Subtracting this distance from the distance between the
two stations leaves 197.5 kilometers. Using the same propagation curve,
the signal from the 5 kW station at this distance is seen to be 0.059
mV/m. Since a protection ratio of 6 dB, desired to undesired signal,
applies to stations separated by 10 kHz, the undesired signal could have
had a value of up to 0.25 mV/m without causing objectionable
interference. For co-channel studies, adesired to undesired signal ratio
of no less than 20:1 (26 dB) is required to avoid causing objectionable
interference.
(d) Where a signal traverses a path over which different
conductivities exist, the distance to a particular groundwave field
strength contour shall be determined by the use of the equivalent
distance method. Reasonably accurate results may be expected in
determining field strengths at a distance from the antenna by
application of the equivalent distance method when the unattenuated
field of the antenna, the various ground conductivities and the location
of discontinuities are known. This method considers a wave to be
propagated across a given conductivity according to the curve for a
homogeneous earth of that conductivity. When the wave crosses from a
region of one conductivity into a region of a second conductivity, the
equivalent distance of the receiving point from the transmitter changes
abruptly but the field strength does not. From a point just inside the
second region the transmitter appearsto be at that distance where, on
the curve for a homogeneous earth of the second conductivity, the field
strength equals the value that occurred just across the boundary in the
first region. Thus the equivalent distance from the receiving point to
the transmitter may be either greater or less than the actual distance.
An imaginary transmitter is considered to exist at that equivalent
distance. This technique is not intended to be used as a means
ofevaluating unattenuated field or ground conductivity by the analysis
of measured data. The method to be employed for such determinations is
set out in Sec. 73.186.
(e) Example of the use of the equivalent distance method;
It is desired to determine the distance to the 0.5 mV/m and 0.025
mV/m contours of a station on a frequency of 1000 kHz with an inverse
distance field of 100 mV/m at one kilometer being radiated over a path
having a conductivity of 10 mS/m for a distance of 20 kilometers, 5 mS/m
for the next 30 kilometers and 15 mS/m thereafter. Using the appropriate
curve in Sec. 73.184, Graph 12, at a distance of 20 kilometers on the
curve for 10 mS/m, the field strength is found to be 2.84 mV/m. On the
5mS/m curve, the equivalent distance to this field strength is 14.92
kilometers, which is 5.08 (20-14.92 kilometers nearer to the
transmitter. Continuing on the propagation curve, the distance to a
field strength of 0.5 mV/m is found to be 36.11 kilomteres.
The actual length of the path travelled, however, is 41.19
(36.11+5.08) kilometers. Continuing on this propagation curve to the
conductivity change at 44.92 (50.00-5.08) kilometers, the field strength
is found to be 0.304 mV/m. On the 15 mS/m propagation curve, the
equivalent distance to this field strength is 82.94 kilometers, which
changes the effective path length by 38.02(82.94-44.92) kilometers.
Continuing on this propagation curve, the distance to a field strength
of 0.025 mV/m is seen to be 224.4 kilometers. The actual length of the
path travelled, however, is 191.46 (224.4+5.08-38.02) kilometers.
[28 FR 13574, Dec. 14, 1963, as amended at 44 FR 36037, June 20, 1979;
48 FR 9011, Mar. 3, 1983; 50 FR 18822, May 2, 1985; 50 FR 24522, June
11, 1985; 51 FR 9965, Mar. 24, 1986; 54 FR 39736, Sept. 28, 1989; 56 FR
64866, Dec. 12, 1991; 57 FR 43290, Sept. 18, 1992]
Sec. 73.184 Groundwave field strength graphs.
(a) Graphs 1 to 20 show, for each of 20 frequencies, the computed
values of groundwave field strength as a function of groundwave
conductivity and distance from the source of radiation. The groundwave
field strength is considered to be that part of the vertical component
of the electric field which has not been reflected from the ionosphere
nor from the troposphere. These 20 families of curves are plotted on
log-log graph paper and each is to be used for the range of frequencies
shown thereon. Computations are based on a dielectric constant of the
ground (referred to air as unity) equal to 15 for land and 80 for sea
water and for the ground conductivities (expressed in mS/m) given on the
curves. The curves show the variation of the groundwave field strength
with distance to be expected for transmission from a vertical
[[Page 55]]
antenna at the surface of a uniformly conducting spherical earth with
the groundwave constants shown on the curves. The curves are for an
antenna power of such efficiency and current distribution that the
inverse distance (unattenuated) field is 100 mV/m at 1 kilometer. The
curves are valid for distances that are large compared to the dimensions
of the antenna for other than short vertical antennas.
(b) The inverse distance field (100 mV/m divided by the distance in
kilometers) corresponds to the groundwave field intensity to be expected
from an antenna with the same radiation efficiency when it is located
over a perfectly conducting earth. To determine the value of the
groundwave field intensity corresponding to a value of inverse distance
field other than 100 mV/m at 1 kilometer, multiply the field strength as
given on these graphs by the desired value of inverse distance field at
1 kilometer divided by 100; for example, to determine the groundwave
field strength for a station with an inverse distance field of 2700 mV/m
at 1 kilometer, simply multiply the values given on the charts by 27.
The value of the inverse distance field to be used for a particular
antenna depends upon the power input to the antenna, the nature of the
ground in the neighborhood of the antenna, and the geometry of the
antenna. For methods of calculating the interrelations between these
variables and the inverse distance field, see ``The Propagation of Radio
Waves Over the Surface of the Earth and in the Upper Atmosphere,'' Part
II, by Mr. K.A. Norton, Proc. I.R.E., Vol. 25, September 1937, pp. 1203-
1237.
Note: The computed values of field strength versus distance used to
plot Graphs 1 to 20 are available in tabular form. For information on
obtaining copies of these tabulations call or write the Consumer Affairs
Office, Federal Communications Commission, Washington, DC 20554, (202)
632-7000.
(c) Provided the value of the dielectric constant is near 15, the
ground conductivity curves of Graphs 1 to 20 may be compared with actual
field strength measurement data to determine the appropriate values of
the ground conductivity and the inverse distance field strength at 1
kilometer. This is accomplished by plotting the measured field strengths
on transparent log-log graph paper similar to that used for Graphs 1 to
20 and superimposing the plotted graph over the Graph corresponding to
the frequency of the station measured. The plotted graph is then shifted
vertically until the plotted measurement data is best aligned with one
of the conductivity curves on the Graph; the intersection of the inverse
distance line on the Graph with the 1 kilometer abscissa on the plotted
graph determines the inverse distance field strength at 1 kilometer. For
other values of dielectric constant, the following procedure may be used
to determine the dielectric constant of the ground, the ground
conductivity and the inverse distance field strength at 1 kilometer.
Graph 21 gives the relative values of groundwave field strength over a
plane earth as a function of the numerical distance p and phase angle b.
On graph paper with coordinates similar to those of Graph 21, plot the
measured values of field strength as ordinates versus the corresponding
distances from the antenna in kilometers as abscissae. The data should
be plotted only for distances greater than one wavelength (or, when this
is greater, five times the vertical height of the antenna in the case of
a nondirectional antenna or 10 times the spacing between the elements of
a directional antenna) and for distances less than
80f\1\/\3\MHz kilometers (i.e., 80 kilometers at 1 MHz).
Then, using a light box, place the plotted graph over Graph 21 and shift
the plotted graph vertically and horizontally (making sure that the
vertical lines on both sheets are parallel) until the best fit with the
data is obtained with one of the curves on Graph 21. When the two sheets
are properly lined up, the valueof the field strength corresponding to
the intersection of the inverse distance line of Graph 21 with the 1
kilometer abscissa on the data sheet is the inverse distance field
strength at 1 kilometer, and the values of the numerical distance at 1
kilometer, p1, and of b are also determined. Knowing the
values of b and p1 (the numerical distanceat one kilometer),
we may substitute in the following approximate values of the ground
conductivity and dielectric constant.
[[Page 56]]
[GRAPHIC] [TIFF OMITTED] TC13NO91.018
(R/)1= Number of wavelengths in 1 kilometer,
* * * * *
fMHz=frequency expressed in megahertz,
[GRAPHIC] [TIFF OMITTED] TC13NO91.019
=dielectric constant on the ground referred to air as unity.
First solve for by substituting the known values of
p1, (R/)1, and cos b in equation (1).
Equation (2) may then be solved for and equation (3) for
. At distances greater than 80/f\1\/\3\ MHz
kilometers the curves of Graph 21 do not give the correct relative
values of field strength since the curvature of the earth weakens the
field more rapidly than these plane earth curves would indicate. Thus,
no attempt should be made to fit experimental data to these curves at
the larger distances.
Note: For other values of dielectric constant, use can be made of
the computer program which was employed by the FCC in generating the
curves in Graphs 1 to 20. For information on obtaining a printout of
this program, call or write the Consumer Affairs Office, Federal
Communications Commission, Washington, DC 200554, (202) 632-7000.
(d) At sufficiently short distances (less than 55 kilometers at AM
broadcast frequencies), such that the curvature of the earth does not
introduce an additional attenuation of the waves, the curves of Graph 21
may be used to determine the groundwave field strength of transmitting
and receiving antennas at the surface of the earth for any radiated
power, frequency, or set of ground constants. First, trace the straight
inverse distance line corresponding to the power radiated on transparent
log-log graph paper similar to that of Graph 21, labelling the ordinates
of the chart in terms of field strength, and the abscissae in terms of
distance. Next, using the formulas given on Graph 21, calculate the
value of the numerical distance, p, at 1 kilometer, and the value of b.
Then superimpose the log-log graph paper over Graph 21, shifting it
vertically until both inverse distance lines coincide and shifting it
horizontally until the numerical distance at 1 kilometer on Graph 21
coincides with 1 kilometer on the log-log graph paper. The curve of
Graph 21 corresponding to the calculated value of b is then traced on
the log-log graph paper giving the field strength versus distance in
kilometers.
(e) This paragraph consists of the following Graphs 1 to 20 and 21.
Note: The referenced graphs are not published in the CFR, nor will
they be included in the Commission's automated rules system. For
information on obtaining copies of the graphs call or write the Consumer
Affairs Office, Federal Communications Commission, Washington, DC 20554,
Telephone: (202) 632-7000.
[28 FR 13574, Dec. 14, 1963, as amended at 50 FR 18823, May 2, 1985; 51
FR 45891, Dec. 23, 1986; 52 FR 36878, Oct. 1, 1987; 56 FR 64866, Dec.
12, 1991; 57 FR 43290, Sept. 18, 1992]
Sec. 73.185 Computation of interfering signal.
(a) Measured values of radiation are not to be used in calculating
overlap, interference, and coverage.
(1) In the case of an antenna which is intended to be non-
directional in the horizontal plane, an ideal non-directional radiation
pattern shall be used in determining interference, overlap, and
coverage, even if the antenna is not actually non-directional.
(2) In the case of an antenna which is directional in the horizontal
plane, the radiation which shall be used in determining interference,
overlap, and coverage is that calculated pursuant to Sec. 73.150 or
Sec. 73.152, depending on whether the station has a standard or modified
standard pattern.
(3) In the case of calculation of interference or overlap to (not
from) a foreign station, the notified radiation shall be used, even if
the notified radiation differs from that in paragraphs (a) (1) or (2) of
this section.
(b) For skywave signals from stations operating on all channels,
interference shall be determined from the appropriate formulas and
Figure 6a contained in Sec. 73.190.
(c) The formulas in Sec. 73.190(d) depicted in Figure 6a of
Sec. 73.190, entitled
[[Page 57]]
``Angles of Departure versus Transmission Range'' are to be used in
determining the angles in the vertical pattern of the antenna of an
interfering station to be considered as pertinent to transmission by one
reflection. To provide for variation in the pertinent vertical angle due
to variations of ionosphere height and ionosphere scattering, the curves
2 and 3 indicate the upper and lower angles within which the radiated
field is to be considered. The maximum value of field strength occurring
between these angles shall be used to determine the multiplying factor
to apply to the 10 percent skywave field intensity value determined from
Formula 2 in Sec. 73.190. The multiplying factor is found by dividing
the maximum radiation between the pertinent angles by 100 mV/m.
(d) Example of the use of skywave curves and formulas: Assume a
proposed new Class B station from which interference may be expected is
located at a distance of 724 kilometers from a licensed Class B station.
The proposed station specifies geographic coordinates of 40 deg.00'00"N
and 100 deg. 00'00"W and the station to be protected is located at an
azimuth of 45 deg. true at geographic coordinates of 44 deg.26'05"N and
93 deg.32'54"W. The critical angles of radiation as determined from
Figure 6a of Sec. 73.190 for use with Class B stations are 9.6 deg. and
16.6 deg.. If the vertical pattern of the antenna of the proposed
station in the direction of the existing station is such that, between
the angles of 9.6 deg. and 16.6 deg. above the horizon the maximum
radiation is 260 mV/m at one kilometer, the value of the 50% field, as
derived from Formula 1 of Sec. 73.190, is 0.06217 mV/m at the location
of the existing station. To obtain the value of the 10% field, the 50%
valuemust be adjusted by a factor derived from Formula 2 of Sec. 73.190.
The value in this case is 8.42 dB. Thus, the 10% field is 0.1616 mV/m.
Using this in conjunction with the co-channel protection ratio of 26 dB,
the resultant nighttime limit from the proposed station to the licensed
station is 3.232 mV/m.
(e) In the case of an antenna which is non-directional in the
horizontal plane, the vertical distribution of the relative fields
should be computed pursuant to Sec. 73.160. In the case of an antenna
which is directional in the horizontal plane, the vertical pattern in
the great circle direction toward the point of reception in question
must first be calculated. In cases where the radiation in the vertical
plane, at the pertinent azimuth, contains a large lobe at a higher angle
than the pertinent angle for one reflection, the method of calculating
interference will not be restricted to that just described; each such
case will be considered on the basis of the best knowledge available.
(f) In performing calculations to determine permissible radiation
from stations operating presunrise or postsunset in accordance with
Sec. 73.99, calculated diurnal factors will be multiplied by the values
of skywave field strength for such stations obtained from Formula 1 or 2
of Sec. 73.190.
(1) The diurnal factor is determined using the time of day at the
mid-point of path between the site of the interfering station and the
point at which interference is being calculated. Diurnal factors are
computed using the formula
Df=a+bF+cF2+dF3 where:
Df represents the diurnal factor,
F is the frequency in MHz,
a,b,c, and d are constants obtained from the tables in paragraph (k)(2)
A diurnal factor greater than one will not be used in calculations and
interpolation is to be used between calculated values where necessary.
For reference purposes, curves for presunrise and postsunset diurnal
factors are contained in Figures 13 and 14 of Sec. 73.190.
(2) Constants used in calculating diurnal factors for the presunrise
and postsunset periods are contained in paragraphs (f)(2) (i) and (ii)
of this section respectively. The columns labeled Tmp
represent the number of hours before and after sunrise and sunset at the
path midpoint.
(i) Presunrise Constants
------------------------------------------------------------------------
Tmp a b c d
------------------------------------------------------------------------
-2.......................... 1.3084 .0083 -.0155 .0144
-1.75....................... 1.3165 -.4919 .6011 -.1884
-1.5........................ 1.0079 .0296 .1488 -.0452
-1.25....................... .7773 .3751 -.1911 .0736
-1.......................... .6230 .1547 .2654 -.1006
-.75........................ .3718 .1178 .3632 -.1172
-.5......................... .2151 .0737 .4167 -.1413
-.25........................ .2027 -.2560 .7269 -.2577
[[Page 58]]
SR.......................... .1504 -.2325 .5374 -.1729
+.25........................ .1057 -.2092 .4148 -.1239
+5.......................... .0642 -.1295 .2583 -.0699
+.75........................ .0446 -.1002 .1754 -.0405
+1.......................... .0148 .0135 .0462 .0010
------------------------------------------------------------------------
(ii) Postsunset Constants
------------------------------------------------------------------------
Tmp a b c d
------------------------------------------------------------------------
1.75........................ .9495 -.0187 .0720 -.0290
1.5......................... .7196 .3583 -.2280 .0611
1.25........................ .6756 .1518 .0279 -.0163
1.0......................... .5486 .1401 .0952 -.0288
.75......................... .3003 .4050 -.0961 .0256
.5.......................... .1186 .4281 -.0799 .0197
.25......................... .0382 .3706 -.0673 .0171
SS.......................... .0002 .3024 -.0540 .0086
-.25........................ .0278 .0458 .1473 -.0486
-.5......................... .0203 .0132 .1166 -.0340
-.75........................ .0152 -.0002 .0786 -.0185
-1.0........................ -.0043 .0452 -.0040 .0103
-1.25....................... .0010 .0135 .0103 .0047
-1.5........................ .0018 .0052 .0069 .0042
-1.75....................... -.0012 .0122 -.0076 .0076
-2.0........................ -.0024 .0141 -.0141 .0091Q
P='04'
Sec. 73.186 Establishment of effective field at one kilometer.
(a) Section 73.189 provides that certain minimum field strengths are
acceptable in lieu of the required minimum physical heights of the
antennas proper. Also, in other situations, it may be necessary to
determine the effective field. The following requirements shall govern
the taking and submission of data on the field strength produced:
(1) Beginning as near to the antenna as possible without including
the induction field and to provide for the fact that a broadcast antenna
is not a point source of radiation (not less than one wave length or 5
times the vertical height in the case of a single element, i.e.,
nondirectional antenna or 10 times the spacing between the elements of a
directional antenna), measurements shall be made on eight or more
radials, at intervals of approximately 0.2 kilometer up to 3 kilometers
(1.87 miles) from the antenna, at intervals of approximately 1 kilometer
from 3 kilometers (1.87 miles) to 10 kilometers (6.2 miles) from the
antenna, at intervals of approximately 3 kilometers from 10 kilometers
(6.2 miles) to 25 or 34 kilometers (15.5 miles or 20 miles) from the
antenna, and a few additional measurements if needed at greater
distances from the antenna. Where the antenna is rurally located and
unobstructed measurements can be made, there shall be as many as 18
measurements on each radial. However, where the antenna is located in a
city where unobstructed measurements are difficult to make, measurements
shall be made on each radial at as many unobstructed locations as
possible, even though the intervals are considerably less than stated
above, particularly within 3 kilometers of the antenna. In cases where
it is not possible to obtain accurate measurements at the closer
distances (even out to 8 or 10 kilometers due to
[[Page 59]]
the character of the intervening terrain), the measurements at greater
distances should be made at closer intervals. (It is suggested that
``wave tilt'' measurements may be made to determine and compare
locations for taking field strength measurements, particularly to
determine that there are no abrupt changes in ground conductivity or
that reflected waves are not causing abnormal strengths.
(2) The data required by paragraph (a)(1) of this section should be
plotted for each radial in accordance with either of the two methods set
forth below:
(i) Using log-log coordinate paper, plot field strengths as ordinate
and distance as abscissa.
(ii) Using semi-log coordinate paper, plot field strength times
distance as ordinate on the log scale and distance as abscissa on the
linear scale.
(3) However, regardless of which of the methods in paragraph (a)(2)
of this section is employed, the proper curve to be drawn through the
points plotted shall be determined by comparison with the curves in
Sec. 73.184 as follows: Place the sheet on which the actual points have
been plotted over the appropriate Graph in Sec. 73.184, hold to the
light if necessary and adjust until the curve most closely matching the
points is found. This curve should then be drawn on the sheet on which
the points were plotted, together with the inverse distance curve
corresponding to that curve. The field at 1 kilometer for the radial
concerned shall be the ordinate on the inverse distance curve at 1
kilometer.
(4) When all radials have been analyzed in accordance with paragraph
(a)(3) of this section, a curve shall be plotted on polar coordinate
paper from the fields obtained, which gives the inverse distance field
pattern at 1 kilometer. The radius of a circle, the area of which is
equal to the area bounded by this pattern, is the effective field. (See
Sec. 73.14.)
(5) The antenna power of the station shall be maintained at the
authorized level during all field measurements. The power determination
will be made using the direct method as described in Sec. 73.51(a) with
instruments of acceptable accuracy specified in Sec. 73.1215.
(b) Complete data taken in conjunction with the field strength
measurements shall be submitted to the Commission in affidavit form
including the following:
(1) Tabulation by number of each point of measurement to agree with
the map required in paragraph (b)(2) of this section, the date and time
of each measurement, the field strength (E), the distance from the
antenna (D) and the product of the field strength and distance (ED) (if
data for each radial are plotted on semilogarithmic paper, see above)
for each point of measurement.
(2) Map showing each point of measurement numbered to agree with
tabulation required above.
(3) Description of method used to take field strength measurements.
(4) The family of theoretical curves used in determining the curve
for each radial properly identified by conductivity and dielectric
constants.
(5) The curves drawn for each radial and the field strength pattern.
(6) The antenna resistance at the operating frequency.
(7) Antenna current or currents maintained during field strength
measurements.
[28 FR 13574, Dec. 14, 1963, as amended at 41 FR 44178, Oct. 7, 1976; 46
FR 11995, Feb. 12, 1981; 49 FR 49851, Dec. 24, 1984; 50 FR 18843, May 2,
1985; 50 FR 47055, Nov. 14, 1985; 51 FR 2707, Jan. 21, 1986; 52 FR
10570, Apr. 2, 1987]
Sec. 73.187 Limitation on daytime radiation.
(a)(1) Except as otherwise provided in paragraphs (a)(2) and (3) of
this section, no authorization will be granted for a Class B or Class D
station on a frequency specified in Sec. 73.25 if the proposed operation
would radiate during the period of critical hours (the two hours after
local sunrise and the two hours before local sunset) toward any point on
the 0.1 mV/m contour of a co-channel U.S. Class A station, at or below
the pertinent vertical angle determined from Curve 2 of Figure 6a of
Sec. 73.190, values in excess of those obtained as provided in paragraph
(b) of this section.
(2) The limitation set forth in paragraph (a)(1) of this section
shall not apply in the following cases:
[[Page 60]]
(i) Any Class B or Class D operation authorized before November 30,
1959; or
(ii) For Class B and Class D stations authorized before November 30,
1959, subsequent changes of facilities which do not involve a change in
frequency, an increase in radiation toward any point on the 0.1 mV/m
contour of a co-channel U.S. Class A station, or the move of transmitter
site materially closer to the 0.1 mV/m contour of such Class A station.
(3) A Class B or Class D station authorized before November 30,
1959, and subsequently authorized to increase daytime radiation in any
direction toward the 0.1 mV/m contour of a co-channel U.S. Class A
station (without a change in frequency or a move of transmitter site
materially closer to such contour), may not, during the two hours after
local sunrise or the two hours before local sunset, radiate in such
directions a value exceeding the higher of:
(i) The value radiated in such directions with facilities last
authorized before November 30, 1959, or
(ii) The limitation specified in paragraph (a)(1) of this section.
(b) To obtain the maximum permissible radiation for a Class B or
Class D station on a given frequency from 640 through 990 kHz, multiply
the radiation value obtained for the given distance and azimuth from the
500 kHz chart (Figure 9 of Sec. 73.190) by the appropriate interpolation
factor shown in the K500 column of paragraph (c) of this
section; and multiply the radiation value obtained for the given
distance and azimuth from the 1000 kHz chart (Figure 10 of Sec. 73.190)
by the appropriate interpolation factor shown in the K1000
column of paragraph (c) of this section. Add the two products thus
obtained; the result is the maximum radiation value applicable to the
Class B or Class D station in the pertinent directions. For frequencies
from 1010 to 1580 kHz, obtain in a similar manner the proper radiation
values from the 1000 and 1600 kHz charts (Figures 10 and 11 of
Sec. 73.190), multiply each of these values by the appropriate
interpolation factors in the K'1000 and K'1600
columns in paragraph (c) of this section, and add the products.
(c) Interpolation factors. (1) Frequencies below 1000 kHz.
------------------------------------------------------------------------
fkHz K500 K1000
------------------------------------------------------------------------
640................................................. 0.720 0.280
650................................................. 0.700 0.300
660................................................. 0.680 0.320
670................................................. 0.660 0.340
680................................................. 0.640 0.360
690................................................. 0.620 0.380
700................................................. 0.600 0.400
710................................................. 0.580 0.420
720................................................. 0.560 0.440
730................................................. 0.540 0.460
740................................................. 0.520 0.480
750................................................. 0.500 0.500
760................................................. 0.480 0.520
770................................................. 0.460 0.540
780................................................. 0.440 0.560
800................................................. 0.400 0.600
810................................................. 0.380 0.620
820................................................. 0.360 0.640
830................................................. 0.340 0.660
840................................................. 0.320 0.680
850................................................. 0.300 0.700
860................................................. 0.280 0.720
870................................................. 0.260 0.740
880................................................. 0.240 0.760
890................................................. 0.220 0.780
900................................................. 0.200 0.800
940................................................. 0.120 0.880
990................................................. 0.020 0.980
------------------------------------------------------------------------
(2) Frequencies above 1000 kHz.
------------------------------------------------------------------------
f'kHz K'1000 K'1600
------------------------------------------------------------------------
1010................................................ 0.983 0.017
1020................................................ 0.967 0.033
1030................................................ 0.950 0.050
1040................................................ 0.933 0.067
1050................................................ 0.917 0.083
1060................................................ 0.900 0.100
1070................................................ 0.883 0.117
1080................................................ 0.867 0.133
1090................................................ 0.850 0.150
1100................................................ 0.833 0.167
1110................................................ 0.817 0.183
1120................................................ 0.800 0.200
1130................................................ 0.783 0.217
1140................................................ 0.767 0.233
1160................................................ 0.733 0.267
1170................................................ 0.717 0.283
1180................................................ 0.700 0.300
1190................................................ 0.683 0.317
1200................................................ 0.667 0.333
1210................................................ 0.650 0.350
1220................................................ 0.633 0.367
1500................................................ 0.167 0.833
1510................................................ 0.150 0.850
1520................................................ 0.133 0.867
1530................................................ 0.117 0.883
1540................................................ 0.100 0.900
1550................................................ 0.083 0.917
1560................................................ 0.067 0.933
1570................................................ 0.050 0.950
1580................................................ 0.033 0.967
------------------------------------------------------------------------
[28 FR 13574, Dec. 14, 1963, as amended at 49 FR 43962, Nov. 1, 1984; 56
FR 64868, Dec. 12, 1991]
[[Page 61]]
Sec. 73.189 Minimum antenna heights or field strength requirements.
(a) Section 73.45 requires that all applicants for new, additional,
or different broadcast facilities and all licensees requesting authority
to move 0the transmitter of an existing station, shall specify a
radiating system, the efficiency of which complies with the requirements
of good engineering practice for the class and power of the station.
(b) The specifications deemed necessary to meet the requirements of
good engineering practice at the present state of the art are set out in
detail below.
(1) The licensee of a AM broadcast station requesting a change in
power, time of operation, frequency, or transmitter location must also
request authority to install a new antenna system or to make changes in
the existing antenna system which will meet the minimum height
requirements, or submit evidence that the present antenna system meets
the minimum requirements with respect to field strength, before
favorable consideration will be given thereto. (See Sec. 73.186.) In the
event it is proposed to make substantial changes in an existing antenna
system, the changes shall be such as to meet the minimum height
requirements or will be permitted subject to the submission of field
strength measurements showing that it meets the minimum requirements
with respect to effective field strength.
(2) These minimum actual physical vertical heights of antennas
permitted to be installed are shown by curves A, B, and C of Figure 7 of
Sec. 73.190 as follows:
(i) Class C stations, and stations in Alaska, Hawaii, Puerto Rico
and the U.S. Virgin Islands on 1230, 1240, 1340, 1400, 1450 and 1490 kHz
that were formerly Class C and were redesignated as Class B pursuant to
Sec. 73.26(b), 45 meters or a minimum effective field strength of 241
mV/m for 1 kW (121 mV/m for 0.25 kW). (This height applies to a Class C
station on a local channel only. Curve A shall apply to any Class C
stations in the 48 conterminous States that are assigned to Regional
channels.)
(ii) Class A (Alaska), Class B and Class D stations other than those
covered in Sec. 73.189(b)(2)(i), a minimum effective field strength of
282 mV/m for 1 kW.
(iii) Class A stations, a minimum effective field strength of 362
mV/m for 1 kW.
(3) The heights given on the graph for the antenna apply regardless
of whether the antenna is located on the ground or on a building. Except
for the reduction of shadows, locating the antenna on a building does
not necessarily increase the efficiency and where the height of the
building is in the order of a quarter wave the efficiency may be
materially reduced.
(4) At the present development of the art, it is considered that
where a vertical radiator is employed with its base on the ground, the
ground system should consist of buried radial wires at least one-fourth
wave length long. There should be as many of these radials evenly spaced
as practicable and in no event less than 90. (120 radials of 0.35 to 0.4
of a wave length in length and spaced 3 deg. is considered an excellent
ground system and in case of high base voltage, a base screen of
suitable dimensions should be employed.)
(5) In case it is contended that the required antenna efficiency can
be obtained with an antenna of height or ground system less than the
minimum specified, a complete field strength survey must be supplied to
the Commission showing that the field strength at a mile without
absorption fulfills the minimum requirements. (See Sec. 73.186.) This
field survey must be made by a qualified engineer using equipment of
acceptable accuracy.
(6) The main element or elements of a directional antenna system
shall meet the above minimum requirements with respect to height or
effective field strength. No directional antenna system will be approved
which is so designed that the effective field of the array is less than
the minimum prescribed for the class of station concerned, or in case of
a Class A station less than 90 percent of the ground wave field which
would be obtained from a perfect antenna of the height specified by
Figure 7 of Sec. 73.190 for operation on frequencies below 1000 kHz, and
in the case of a Class B or Class D station less than 90 percent of the
ground wave
[[Page 62]]
field which would be obtained from a perfect antenna of the height
specified by Figure 7 of Sec. 73.190 for operation on frequencies below
750 kHz.
[28 FR 13574, Dec. 14, 1963, as amended at 31 FR 8069, June 8, 1966; 33
FR 15420, Oct. 17, 1968; 44 FR 36038, June 20, 1979; 50 FR 18844, May 2,
1985; 51 FR 2707, Jan. 21, 1986; 51 FR 4753, Feb. 7, 1986; 52 FR 10570,
Apr. 2, 1987; 56 FR 64868, Dec. 12, 1991]
Sec. 73.190 Engineering charts and related formulas.
(a) This section consists of the following Figures: 2, r3, 5, 6a, 7,
8, 9, 10, 11, 12, and 13. Additionally, formulas that are directly
related to graphs are included.
(b) Formula 1 is used for calculation of 50% skywave field strength
values.
Formula 1. Skywave field strength, 50% of the time (at SS+6):
The skywave field strength, Fc(50), for a characteristic
field strength of 100 mV/m at 1 km is given by:
[GRAPHIC] [TIFF OMITTED] TC01MR91.068
The slant distance, D, is given by:
[GRAPHIC] [TIFF OMITTED] TC13NO91.020
The geomagnetic latitude of the midpoint of the path,
M, is given by:
M =arcsin[sin aM sin 78.5 deg.
+ cos aM cos 78.5 deg. cos(69 + bM)]
degrees (Eq. 3)
The short great-circle path distance, d, is given by:
[GRAPHIC] [TIFF OMITTED] TC13NO91.021
Where:
d deg. = arccos[sin aT sin aR
+ cos aT cos aR cos(bR -
bT)]
degrees (Eq.5)
Where:
aT is the geographic latitude of the transmitting terminal
(degrees)
aR is the geographic latitude of the receiving terminal
(degrees)
bT is the geographic longitude of the transmitting terminal
(degrees)
bR is the geographic longitude of the receiving terminal
(degrees)
aM is the geographic latitude of the midpoint of the great-
circle path (degrees) and is given by:
bM is the geographic longitude of the midpoint of the great-
circle path (degrees) and is given by:
[GRAPHIC] [TIFF OMITTED] TC01MR91.069
[GRAPHIC] [TIFF OMITTED] TC01MR91.070
Note (1): If | FM| is greater than 60 degrees, equation
(1) is evaluated for | FM| = 60 degrees.
Note (2): North and east are considered positive; south and west
negative.
[[Page 63]]
Note (3): In equation (7), k = -1 for west to east paths (i.e.,
bR > bT), otherwise k = 1.
(c) Formula 2 is used for calculation of 10% skywave field strength
values.
Formula 2. Skywave field strength, 10% of the time (at SS+6):
The skywave field strength, Fc(10), is given by:
Fc(10) = Fc(50) + dB(V/m)
Where:
= 6 when | FM| 40
= 0.2 | FM| - 2 when 40 |
FM| 60
= 10 when | FM| > 60
(d) Figure 6a depicts angles of departure versus transmission range.
These angles may also be computed using the following formulas:
[GRAPHIC] [TIFF OMITTED] TC01MR91.071
Where:
d=distance in kilometers
n=1 for 50% field strength values
n=2 or 3 for 10% field strength values
and where
K1=0.00752
K2=0.00938
K3=0.00565
Note: Computations using these formulas should not be carried beyond
0.1 degree.
(e) In the event of disagreement between computed values using the
formulas shown above and values obtained directly from the figures, the
computed values will control.
[[Page 64]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.072
[[Page 65]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.073
[[Page 66]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.074
[[Page 67]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.075
[[Page 68]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.076
[[Page 69]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.077
[[Page 70]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.078
[[Page 71]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.079
[[Page 72]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.080
[[Page 73]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.081
[[Page 74]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.082
[[Page 75]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.083
[[Page 76]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.084
[28 FR 13574, Dec. 14, 1963, as amended at 30 FR 12720, Oct. 6, 1965; 33
FR 15420, Oct 17, 1968; 48 FR 42959, Sept. 20, 1983; 49 FR 43963, Nov.
1, 1984; 50 FR 18844, May 2, 1985; 51 FR 4753, Feb. 7, 1986; 52 FR
36879, Oct. 1, 1987; 56 FR 64869, Dec. 12, 1991]
Subpart B--FM Broadcast Stations
Sec. 73.201 Numerical designation of FM broadcast channels.
The FM broadcast band consists of that portion of the radio
frequency spectrum between 88 MHz and 108 MHz. It is divided into 100
channels of 200 kHz each. For convenience, the frequencies available for
FM broadcasting (including those assigned to noncommercial educational
broadcasting) are given numerical designations which are shown in the
table below:
------------------------------------------------------------------------
Channel
Frequency (Mc/s) No.
------------------------------------------------------------------------
88.1........................................................ 201
88.3........................................................ 202
[[Page 77]]
88.5........................................................ 203
88.7........................................................ 204
88.9........................................................ 205
89.1........................................................ 206
89.3........................................................ 207
89.5........................................................ 208
89.7........................................................ 209
89.9........................................................ 210
90.1........................................................ 211
90.3........................................................ 212
90.5........................................................ 213
90.7........................................................ 214
90.9........................................................ 215
91.1........................................................ 216
91.3........................................................ 217
91.5........................................................ 218
91.7........................................................ 219
91.9........................................................ 220
92.1........................................................ 221
92.3........................................................ 222
92.5........................................................ 223
92.7........................................................ 224
92.9........................................................ 225
93.1........................................................ 226
93.3........................................................ 227
93.5........................................................ 228
93.7........................................................ 229
93.9........................................................ 230
94.1........................................................ 231
94.3........................................................ 232
94.5........................................................ 233
94.7........................................................ 234
94.9........................................................ 235
95.1........................................................ 236
95.3........................................................ 237
95.5........................................................ 238
95.7........................................................ 239
95.9........................................................ 240
96.1........................................................ 241
96.3........................................................ 242
96.5........................................................ 243
96.7........................................................ 244
96.9........................................................ 245
97.1........................................................ 246
97.3........................................................ 247
97.5........................................................ 248
97.7........................................................ 249
97.9........................................................ 250
98.1........................................................ 251
98.3........................................................ 252
98.5........................................................ 253
98.7........................................................ 254
98.9........................................................ 255
99.1........................................................ 256
99.3........................................................ 257
99.5........................................................ 258
99.7........................................................ 259
99.9........................................................ 260
100.1....................................................... 261
100.3....................................................... 262
100.5....................................................... 263
100.7....................................................... 264
100.9....................................................... 265
101.1....................................................... 266
101.3....................................................... 267
101.5....................................................... 268
101.7....................................................... 269
101.9....................................................... 270
102.1....................................................... 271
102.3....................................................... 272
102.5....................................................... 273
102.7....................................................... 274
102.9....................................................... 275
103.1....................................................... 276
103.3....................................................... 277
103.5....................................................... 278
103.7....................................................... 279
103.9....................................................... 280
104.1....................................................... 281
104.3....................................................... 282
104.5....................................................... 283
104.7....................................................... 284
104.9....................................................... 285
105.1....................................................... 286
105.3....................................................... 287
105.5....................................................... 288
105.7....................................................... 289
105.9....................................................... 290
106.1....................................................... 291
106.3....................................................... 292
106.5....................................................... 293
106.7....................................................... 294
106.9....................................................... 295
107.1....................................................... 296
107.3....................................................... 297
107.5....................................................... 298
107.7....................................................... 299
107.9....................................................... 300
------------------------------------------------------------------------
Note: The frequency 108.0 MHz may be assigned to VOR test stations
subject to the condition that interference is not caused to the
reception of FM broadcasting stations, present or future.
[28 FR 13623, Dec. 14, 1963, as amended at 30 FR 4480, Apr. 7, 1965; 52
FR 10570, Apr. 2, 1987]
Sec. 73.202 Table of Allotments.
(a) General. The following Table of Allotments contains the channels
(other than noncommercial educational Channels 201-220) designated for
use in communities in the United States, its territories, and
possessions. All listed channels are for Class B stations in Zones I and
I-A and for Class C stations in Zone II unless otherwise specifically
designated.
(1) Channels designated with an asterisk may be used only by
noncommercial educational broadcast stations. The rules governing the
use of those channels are contained in part 73, subpart C of this
chapter. An entity that would be eligible to operate a noncommercial
educational broadcast station can, in conjunction with an initial
petition for rulemaking filed pursuant to part 1, subpart C of this
chapter, request that a nonreserved FM channel (channels 221 through
300) be allotted as reserved only for noncommercial educational
broadcasting by demonstrating the following:
(i) No reserved channel can be used without causing prohibited
interference to TV channel 6 stations or foreign broadcast stations; or
[[Page 78]]
(ii) The applicant is technically precluded from using the reserved
band by existing stations or previously filed applications and the
proposed station would provide a first or second noncommercial
educational radio service to 2,000 or more people who constitute 10% of
the population within the proposed allocation's 60 dBu (1 mV/m) service
contour.
(2) Each channel listed in the Table of Allotments reflects the
class of station that is authorized, or has an application filed, to use
it based on the minimum and maximum facility requirements for each class
contained in Sec. 73.211.
Note: The provisions of this paragraph [(a)(2) of this section]
become effective [3 years from the effective date of the Report and
Order in BC Docket 80-90].
(b) Table of FM Allotments.
Alabama
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Abbeville................................. 232C3
Addison................................... 289A
Albertville............................... 286C
Alexander City............................ 291C1
Andalusia................................. 279A
Anniston.................................. 261C3
Arab...................................... 224A
Ashland................................... 238A, 264A
Athens.................................... 282C
Atmore.................................... 290A
Auburn.................................... 249A
Bay Minette............................... 288A
Birmingham................................ 229C, 233C, 243C, 258C,
284C, 295C, 299C
Brantley.................................. 262A
Brewton................................... 292A
Brundidge................................. 234A
Butler.................................... 228C2
Camden.................................... 272A
Carrollton................................ 231C
Centre.................................... 290A
Chickasaw................................. 252C2
Citronelle................................ 271C3
Clanton................................... 249A
Columbia.................................. 221A
Columbiana................................ 268A
Cordova................................... 237A
Cullman................................... 221A, 266C
Dadeville................................. 247A
Daphne.................................... 293C2
Decatur................................... 245C, 271C1
Demopolis................................. 293C3
Dora...................................... 223A
Dothan.................................... 238C, 259C1, 267A, 273C3
Elba...................................... 266A
Enterprise................................ 245C, 294C
Eufaula................................... 224C2, 250A
Eutaw..................................... 282A
Eva....................................... 260A
Evergreen................................. 227C1
Fairhope.................................. 221C3
Fayette................................... 251C1
Florence.................................. 241A, 297C
Fort Mitchell............................. 252A
Fort Rucker............................... 263A
Fruithurst................................ 274A
Gadsden................................... 279C
Geneva.................................... 229C1
Georgiana................................. 299C2
Glencoe................................... 226A
Greensboro................................ 256A
Greenville................................ 232A, 240A
Grovehill................................. 291C3
Guntersville.............................. 240C3
Haleyville................................ 224A
Hamilton.................................. 221A
Hartselle................................. 291C3
Headland.................................. 287C3
Homewood.................................. 247A
Huntsville................................ 236C2, 256C
Jackson................................... 233C2
Jasper.................................... 273C
Linden.................................... 275C2, 253C1
Lisman.................................... 299A
Luverne................................... 282C1
Meridianville............................. 231A
Millbrook................................. 246A
Mobile.................................... 225C, 235C, 241C, 248C, 260C
Monroeville............................... 257C2
Montgomery................................ 222C, 241A, 255C1, 255C2,
270C, 277C
Moulton................................... 276C3
Muscle Shoals............................. 288A
Northport................................. 264C3
Oneonta................................... 249A
Opelika................................... 244A
Opp....................................... 272A
Orange Beach.............................. 289A
Orrville.................................. 274A
Oxford.................................... 250A
Ozark..................................... 280C3, 285A
Phoenix City.............................. 261A
Pine Hill................................. 244C3
Prattville................................ 236C2
Reform.................................... 269C2
Repton.................................... 266A
Roanoke................................... 272C3
Rogersville............................... 230A
Russellville.............................. 249A
Saint Florian............................. 274A
Scottsboro................................ 252A
Selma..................................... 261C2, 265C2, 287C2
Sheffield................................. 292C3
Smiths.................................... 267A
Stevenson................................. 269A
Sylacauga................................. 252A
Talladega................................. 224A, 248A
Tallassee................................. 260A
Thomaston................................. 249A
Thomasville............................... 238C3
Trinity................................... 223A
Troy...................................... 289C
Trussville................................ 290A
Tuscaloosa................................ 225C1, 239C1, 288A
Tuscumbia................................. 262C
Tuskegee.................................. 240A
Union Springs............................. 231A
Uniontown................................. 298A
Valley.................................... 237A
Vernon.................................... 293A
Warrior................................... 254C1, 254C2
Wetumpka.................................. 250A
Winfield.................................. 290A
York...................................... 285C2
------------------------------------------------------------------------
[[Page 79]]
Effective Date Note: At 65 FR 55925, Sept. 15, 2000, Alabama was
amended by removing Channel 251C1 at Andalusia, effective Oct. 16, 2000.
Alaska
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Anchorage................................. 225C, 229C2, 247C1, 251C1,
255C1, 263C2, 267C2, 271C3,
276C1, 281C1,287C1, 293C1,
298C1
Bethel.................................... 252C3, 261C3
College................................... 280C3
Cordova................................... 265A
Delta Junction............................ 228A
Dillingham................................ 256A
Fairbanks................................. 240C3, 245C3, 251C1, 266C2,
273C, 284C3
Haines.................................... *272A
Homer..................................... 278C
Houston................................... 221A, 234C2, 241A, 242A
Juneau.................................... 264A, 274A, 282A, 286A,
292C3
Kasilof................................... 295A
Kenai..................................... 261C3
Ketchikan................................. 260A, 290C3, 294A
King Salmon............................... 221A
Kodiak.................................... 261A, 266A
Kotzebue.................................. 280A
Naknek.................................... 265A
Nikiski................................... 227C2
Nome...................................... 241A, 262A
North Pole................................ 262C1
Palmer.................................... 238C1
Petersburg................................ *265A
Seward.................................... 290A
Sitka..................................... 276C2, 284A
Soldotna.................................. 243C3, 269C3
Sterling.................................. ............................
Valdez.................................... 227A
Wasilla................................... 259C1, 265C2
Wrangell.................................. *269A
Yakutat................................... 280A
------------------------------------------------------------------------
Arizona
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Ajo....................................... 252A
Apache junction........................... 296C2
Arizona City.............................. 293A
Bagdad.................................... 276C3
Benson.................................... 249A
Bisbee.................................... 222A
Buckeye................................... 295A
Casa Grande............................... 288C2
Chandler.................................. 300C
Chinle.................................... 297C2
Chino Valley.............................. 280C3
Claypool.................................. 291A
Clifton................................... 271C1
Colorado City............................. 296C3
Comobabi.................................. *275A
Cottonwood................................ 240C1, 289C3
Dolan Springs............................. 289C
Douglas................................... 237A, 243A
Duncan.................................... 264A
Eager..................................... 223C1
Flagstaff................................. 225C, 230C, 248C, 261C2,
279C3
Florence.................................. 276C1
Gilbert................................... 280C2
Glendale.................................. 222C, 278C
Globe..................................... 247C3, 262C
Green Valley.............................. 221C2, 246C3
Holbrook.................................. 253C1
Kachina Village........................... 286C2
Kearny.................................... 287C2
Kingman................................... 224C1, 234C, 261C2
Lake Havasu City.......................... 244C2, 266C3, 272C2, 283C2,
286C2
Leupp..................................... 255C
Marana.................................... 252A
Mayer..................................... 236C
Mesa...................................... 284C, 227C
Miami..................................... 252A
Mohave Valley............................. 240A
Munds Park................................ 291A
Nogales................................... 252A, 256A
Oracle.................................... 292A
Oro Valley................................ 248A, 270A
Page...................................... 227C2
Paradise Valley........................... 290C2
Parker.................................... 230C3, 257C2
Payson.................................... 257A, 266C1, 282C
Phoenix................................... 233C, 238C, 245C, 254C,
260C, 268C, 273C
Pima...................................... 296A
Pinetop................................... 294C1
Prescott.................................. 256C, 271C
Prescott Valley........................... 252C2, 294C2
Quartzsite................................ 232A
Safford................................... 231C1
Salome.................................... 241A
Seligman.................................. 277A
St. Johns................................. 239C
Strasburg................................. 272A
Scottsdale................................ 264C
Sedona.................................... 275C, 298C
Show Low.................................. 228C2, 243C
Sierra Vista.............................. 265A, 269A
Somerton.................................. 260C3
Springerville............................. 269C1
Sun City.................................. 292C2
Teec Nos Pos.............................. 237C1
Tempe..................................... 250C
Thatcher.................................. 256C
Tuba City................................. 250C1
Tucson.................................... 225C, 229C, 235C, 241C,
258C, 281A, 298C
Tusayan................................... 221A
Wellton................................... 283C2, 240A
Wickenburg................................ 231C3, 287C2
Willcox................................... 223C3, 285C2
Williams.................................. 244A
Window Rock............................... 241C1, 274C3
Yarnell................................... 258A
Yuma...................................... 226C, 236C, 265A
------------------------------------------------------------------------
Arkansas
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Arkadelphia............................... 265A
Ashdown................................... 227C3, 280A
Atkins.................................... 257A
Augusta................................... 249C2
Bald Knob................................. 296C3
Barling................................... 233A
Batesville................................ 226C, 258A
Beebe..................................... 268A
Bella Vista............................... 293C2
Benton.................................... 294C2
Bentonville............................... 239A, 252C1
Berryville................................ 296C3
Blossom................................... 224C2
[[Page 80]]
Blytheville............................... 242C1
Booneville................................ 284C2
Bryant.................................... 227A
Cabot..................................... 273A
Calico Rock............................... 246A
Camden.................................... 246C2, 283A
Cherokee Village.......................... 252A
Clarendon................................. 281A
Clarksville............................... 224A, 295A
Clinton................................... 221C3
Coalgate.................................. 288C2
Colt...................................... 272C2
Conway.................................... 224A, 286C1
Corning................................... 228A
Cotton Plant.............................. 257A
Crossett.................................. 285A
Danville.................................. 288A
Dardanelle................................ 272C3
De Witt................................... 247C2
DeQueen................................... 221C2
Dermott................................... 276A, 289A
Des Arc................................... 284A
Dumas..................................... 295C3
Earle..................................... 280C3
East Camden............................... 237C1
Elaine.................................... 238A
El Dorado................................. 227C3, 240A, 254C3, 268A,
277C1
England................................... 243C3
Eudora.................................... 268A
Eureka Springs............................ 265A
Fairfield Bay............................. 291C2
Fayetteville.............................. 221C3, 280C1, 300C
Fordyce................................... 272A
Forrest City.............................. 228C3
Fort Smith................................ 229C, 256C, 260C, 264C2
Fouke..................................... 282A
Glenwood.................................. 283A
Gosnell................................... 297A
Gould..................................... 273A
Greenwood................................. 268A, 292C3
Grosnell.................................. 230A
Gurdon.................................... 295C3
Hamburg................................... 258A
Hampton................................... 293C3
Hardy..................................... 284A
Harrisburg................................ 240C3
Harrison.................................. 244A, 241C2, 275C1
Hatfield.................................. 281C2
Heber Springs............................. 264C2
Helena.................................... 233C3, 276C3
Hope...................................... 269C2, 285A
Horseshoe Bend............................ 293A
Hot Springs............................... 244A, 248C1, 290C1
Hot Springs Village....................... 225A
Hoxie..................................... 287A
Humnoke................................... 269A
Huntsville................................ 258C3
Jacksonville.............................. 262C1
Jonesboro................................. 263C2, 270C, 300C1
Judsonia.................................. 237A
Kensett................................... 289A
Lakeview.................................. 228C3
Lake City................................. 285C3
Lake Village.............................. 240A, 278C3
Little Rock............................... 231C, 239C, 253C, 258A, 279C
Lonoke.................................... 292C2
Lowell.................................... 270C2
Magnolia.................................. 300C1
Malvern................................... 268A
Mammoth Spring............................ 236C1
Marianna.................................. 287A
Marion.................................... 296A
Marked Tree............................... 229A
Marshall.................................. 282C
Maumelle.................................. 235C, 245A
Mena...................................... 242C1, 271C3, 287C3
Monticello................................ 229C3, 260C3
Morrilton................................. 269A
Mountain Home............................. 250C2, 288C2, 298C1
Mountain Pine............................. 270A
Mountain View............................. 277C
Murfreesboro.............................. 258C3
Nashville................................. 245A, 288A
Newport................................... 244C2
North Crossett............................ 274C3
North Little Rock......................... 266A
Ola....................................... 267A
Ozark..................................... 244A
Pangburn.................................. 256A
Paragould................................. 296A
Paris..................................... 237C2
Piggott................................... 288A
Pine Bluff................................ 222C1, 257A, 267C3
Pocohontas................................ 281A
Prairie Grove............................. 235C2
Rogers.................................... 232C2
Russellville.............................. 265A
Saint Paul................................ 287A
Salem..................................... 265A
Searcy.................................... 260C2
Sheridan.................................. 275C2
Sherwood.................................. 271A
Siloam Springs............................ *266A, 289C
Springdale................................ 285A
Stamps.................................... 263C2
Stuttgart................................. 288A
Texarkana................................. 284A, 292C2, 296A
Trumann................................... 294A
Turrell................................... 234A
Van Buren................................. 274C2
Viola..................................... 232C3
Waldo..................................... 256A
Waldron................................... 276C2
Walnut Ridge.............................. 292A
Warren.................................... 288A
West Helena............................... 233C3, 285A
White Hall................................ 283A
Wrightsville.............................. 299C2
Wynne..................................... 223C2
Yellville................................. 269A
------------------------------------------------------------------------
California
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alameda................................... 224A
Alturas................................... 267C, 293C1, 297C
Anaheim................................... 240A
Anderson.................................. 234C2
Apple Valley.............................. 272A
Arcadia................................... 296A
Arcata.................................... 226C
Arnold.................................... 240A, 291B1
Arvin..................................... 223A
Atascadero................................ 283B
Atwater................................... 223A
Auberry................................... 286B1
Auburn.................................... 266B
Avalon.................................... 224A
Avenal.................................... 289A
Baker..................................... 235B1, 268B
Bakersfield............................... 221A, 231B, 243B, 257B1,
268B, 296A, 300B
[[Page 81]]
Barstow................................... 232B1, 240B1
Beaumont.................................. 265A
Berkeley.................................. 231B, 275B
Big Bear City............................. 227A
Big Bear Lake............................. 269A
Big Pine.................................. 227B
Bishop.................................... 264B
Blue Lake................................. 292A
Blythe.................................... 262B
Booneville................................ 241A
Brawley................................... 233B, 241B
Burney.................................... 291C
Calexico.................................. 249A
California City........................... 295A
Calipatria................................ 265A
Calistoga................................. 265A
Camarillo................................. 212B, 240B1
Cambria................................... 235B1, 278A
Carlsbad.................................. 239B
Carmel.................................... 238A, 269A
Carmel Valley............................. 290A
Carnelian Bay............................. 279C1
Carpinteria............................... 269A
Cartago................................... 275A
Cathedral City............................ 253B
Central Valley............................ 257C2
Chester................................... 255C, 259A
Chico..................................... 230B1, 236B, 224A
China Lake................................ 274A
Chowchilla................................ 227A
Cloverdale................................ 274A, 296A
Clovis.................................... 221B
Coachella................................. 229B
Coalinga.................................. 247A, 261B
Coarsegold................................ 233A
Columbia.................................. 255A
Colusa.................................... 276A, 298B
Compton................................... 272A
Copperopolis.............................. 288A
Corcoran.................................. 272B1
Corning................................... 264C1
Covelo.................................... 245A
Cresent City.............................. 232C3
Cresent North............................. 250C2
Davis..................................... 282A
Delano.................................... 253B1, 287B
Desert Center............................. 288A
Dinuba.................................... 255B
Dunnigan.................................. 288B1
Dunsmuir.................................. 261C3
Earlimart................................. 228A
East Hemet................................
East Los Angeles.......................... 250B
East Porterville.......................... 263B1
Edwards................................... 280A
El Cajon.................................. 227B
El Centro................................. 298B
El Rio.................................... 279A
Ellwood................................... 233B
Encinitas................................. 271B
Escondido................................. 221A
Esparto................................... 250A
Essex..................................... 255B, 280B
Eureka.................................... 222C1, 242C, 268C, 288C1
Fair Oaks................................. 234B1
Fallbrook................................. 296A
Felton.................................... 229A
Ferndale.................................. 257A
Firebaugh................................. 234A
Ford City................................. 271A
Fort Bragg................................ 228B, 237B, 253B1
Fortuna................................... 262C1
Fowler.................................... 244B1
Freedom................................... 298A
Fremont................................... 285A
Fresno.................................... 229B, 239B, 250B, 257A,
266B, 270B, 274B, 290B
Garberville............................... 279C1, 284C
Garden Grove.............................. 232A
George.................................... 264A
Gilroy.................................... 233B
Glendale.................................. 270B
Goleta.................................... 292A
Gonzales.................................. 282A
Grass Valley.............................. 231A, 257A, 277A
Greenacres................................ 291B1
Greenfield................................ 258B, 300B
Gridley................................... 268A
Grover Beach.............................. 297B
Guadalupe................................. 288A
Gualala................................... 263b1
Hamilton City............................. 269A
Hanford................................... 233A, 279B, 298B
Healdsburg................................ 225B, 240A, 244A
Hement.................................... 273A
Hollister................................. 228A
Holtville................................. 261A
Huron..................................... 252A
Hydesville................................ 231C1
Idyllwild................................. 267A
Imperial.................................. 257A
Independence.............................. 223B
Indio..................................... 224A, 272A
Inglewood................................. 280A
Jackson................................... 232B1
Jenner.................................... 292A
Joshua Tree............................... 221A
Julian.................................... 261A
Kerman.................................... 232A, 237A
Kernville................................. 273A
King City................................. 230B1, 271B
Kings Beach............................... 299C3
Kingsburg................................. 292A
La Quinta................................. 244A
Lake Arrowhead............................ 280A
Lake Isabella............................. 239A, 283A
Lakeport.................................. 252A, 258B
Lancaster................................. 292A
Lenwood................................... 245A, 283A
Lindsay................................... 277B1
Livermore................................. 269A
Livingston................................ 240A
Lodi...................................... 249A
Lompoc.................................... 262B1, 281B1, 285A, 294B1
Long Beach................................ 288A
Los Altos................................. 249A
Los Angeles............................... 222B, 226B, 230B, 234B,
238B, 242B, 246B, 254B,
258B, 262B, 266B, 274B,
278B, 282B, 286B, 290B,
298B
Los Banos................................. 284B, 295A
Los Gatos................................. 237A
Los Molinos............................... 269A
Los Osos-Baywood Pk....................... 267B
Lost Hills................................ 289A
Lucerne Valley............................ 293A
Ludlow.................................... 261B1, 273A
Madera.................................... 296B1
Mammoth Lakes............................. 293B1
Manteca................................... 244A
Maricopa.................................. 235A
Marina.................................... 224B1
Mariposa.................................. 242B, 280A
[[Page 82]]
Marysville................................ 260B
McCloud................................... 238C3
McFarland................................. 247A, 275B1
Mecca..................................... 249A
Mendocino................................. 224A
Mendota................................... 263A
Merced.................................... 231A, 248B, 268B, 292A
Middletown................................ 254A
Modesto................................... 230A, 272A, 277B, 281B
Mojave.................................... 241A, 249A
Monte Rio................................. 249B1
Montecito................................. 225A
Monterey.................................. 245B
Morro Bay................................. 231A, 259A
Morgan Hill............................... 241A
Mount Bullion............................. 260B
Mount Shasta.............................. 300A
Mountain Pass............................. 259B
Needles................................... 250C1, 296B
Newberry Springs.......................... 279A
Newport Beach............................. 276A
North Fork................................ 300B1
Oakdale................................... 236B
Oakhurst.................................. 276B1
Oildale................................... 237B1
Ojai...................................... 288A
Ontario................................... 228A
Orange Cove............................... 262A
Orcutt.................................... 239B1
Orland.................................... 294B
Oroville.................................. 249B1
Oxnard.................................... 252B1, 275A, 284B
Pacific Grove............................. 286B1
Palm Dessert.............................. 276A
Palm Springs.............................. 263B1, 284B, 291B
Paradise.................................. 244B1, 278B1
Pasadena.................................. 294B
Paso Robles............................... 223B, 276A
Patterson................................. 226B, 246A
Pismo Beach............................... 237A
Placerville............................... 221A
Point Arena............................... 272B1
Porterville............................... 259B
Quincy.................................... 240A, 262A
Rancho Mirage............................. 258A
Red Bluff................................. 239B, 274C2
Redding................................... 247C, 251C, 282C
Redlands.................................. 244A
Redondo Beach............................. 228A
Ridgecrest................................ 224B1, 285B1
Rio Del................................... 297C2
Riverside................................. 224A, 248B, 256B
Rohnert Park.............................. 285A
Rosamond.................................. 228A, 288A
Roseville................................. 229B1
Sacramento................................ 223B, 241B, 245B, 253B,
263B, 278A, 286B, 293B,
300B
Salinas................................... 250A, 264B, 273B, 278A
San Bernardino............................ 236B, 260B
San Clemente.............................. 300B
San Diego................................. 231B, 235B, 243B, 247B,
251B, 264B, 268B, 275B,
279B, 287B, 293B
San Fernando.............................. 232A
San Francisco............................. 227B, 235B, 239B, 243B,
247B, 251B, 255B, 259B,
267B, 271B, 279B, 283B,
287B, 291B, 295B
San Jacinto............................... 241A
San Joaquin............................... 288A
San Jose.................................. 222B, 253B, 262B, 293B
San Luis Obispo........................... 227B, 241B, 246B1, 251B
San Mateo................................. 299B
San Rafael................................ 264A
Santa Ana................................. 244A, 292A
Santa Barbara............................. 229B, 248B, 260B, 277B,
299B1
Santa Clara............................... 289B
Santa Cruz................................ 256B
Santa Margarita........................... 291B1
Santa Maria............................... 256B, 273B
Santa Paula............................... 244A
Santa Rosa................................ 261B1, 269A
Santa Ynez................................ 290A
Searcy.................................... 260C2
Seaside................................... 280A, 296A
Sebastopol................................ 229A
Shafter................................... 249A, 282A
Shasta Lake City.......................... 257C3, 296C3
Shingle Springs........................... 270B
Shingletown............................... 241A, 287C2
Soledad................................... 292A
Solvang................................... 244A
Sonora.................................... 224A
South Lake Tahoe.......................... 230B1, 275C
South Oroville............................ 285A
St. Helena................................ 257A
Stockton.................................. 257A, 261A, 297B
Sun City.................................. 225A
Susanville................................ 222C2, 227C, 242C3
Sutter Creek.............................. 298A
Taft...................................... 280A, 293A
Tahoe City................................ 243C1
Tecopa.................................... 291A
Tehachapi................................. 261A, 276A
Temecula.................................. 233A, 277A
Templeton................................. 263A
Thousand Oaks............................. 216B, 224A, 234A
Tipton.................................... 285A
Tracy..................................... 265A
Truckee................................... 268A
Tulare.................................... 235B, 294B
Tulelake.................................. 243C
Turlock................................... 252A
Twin Harte................................ 228A
Twentynine Palms.......................... 242A, 299B1
Ukiah..................................... 233B, 246A, 277B, 290B
Vacaville................................. 237B1
Ventura................................... 236B, 264B, 296A
Victorville............................... 276A
Visalia................................... 255B, 241A, 246B
Walnut Creek.............................. 221A
Weaverville............................... 266A, 276C2
Weed...................................... 272C1
Westley................................... 238A
West Covina............................... 252A
Williams.................................. 256A
Willows................................... 292A
Windon.................................... 254A
Windsor................................... 281A
Woodlake.................................. 281B
Woodland.................................. 281B
Yermo..................................... 251B
Yreka..................................... 280C1
Yuba City................................. 280B1
Yucca Valley.............................. 295B
------------------------------------------------------------------------
Effective Date Notes: 1. At 65 FR 53639, Sept. 5, 2000, California
was amended by removing Channel 280B1 at Johannesburg and adding
Edwards, Channel 280A, effective Oct. 2, 2000.
2. At 65 FR 57745, Sept. 26, 2000, California was amended by
removing Channel 296B1 at
[[Page 83]]
Point Arena, and adding Cloverdale, Channels 274A, 296A, effective Oct.
30, 2000.
3. At 65 FR 58229, Sept. 28, 2000, California was amended by adding
Channel 239A at Lake Isabella, effective Oct. 30, 2000.
4. At 65 FR 58230, Sept. 28, 2000, California was amended by adding
Jenner, Channel 292A, effective Oct. 30, 2000.
5. At 65 FR 58231, Sept. 28, 2000, California was amended by adding
Covelo, Channel 245A, effective Oct. 30, 2000.
Colorado
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alamosa................................... 228A
Aspen..................................... 249C3, 296C3
Avon...................................... 276C2
Basalt.................................... 291A
Bayfield.................................. 223A, 296C
Boulder................................... 247C
Broomfield................................ 223C1
Buena Vista............................... 281C3
Breckenridge.............................. 272A
Brush..................................... 292A, 296A
Burlington................................ 257C1, 281C1
Calhan.................................... 284A
Canon City................................ 283A
Carbondale................................ 244A
Castle Rock............................... 221C2
Center.................................... 287A
Colorado Springs.......................... 225C, 232C, 236C, 251C, 270C
Cortez.................................... 250C, 254C
Craig..................................... 229C1, 273C
Del Norte................................. 242A
Delta..................................... 236C, 277C2
Denver.................................... 239C, 253C, 258C, 262C,
266C, 278C, 286C, 290C,
294C
Dinosaur.................................. 247C1
Dolores................................... 227C2
Dove Creek................................ 273C3
Durango................................... 259C2, 263C, 267C1, 287A
Eagle..................................... 268C
Eckley.................................... 237C1
El Jebel.................................. 263A
Estes Park................................ 271C3
Evergreen................................. 243C
Fort Collins.............................. 227C, 300C1
Fort Morgan............................... 269A
Fountain.................................. 241C3
Frisco.................................... 230A
Fruita.................................... 260C
Glenwood Springs.......................... 224C, 238A, 256C3
Grand Junction............................ 222C, 226C, 264C1, 282C,
300C
Greeley................................... 241C1
Gunnison.................................. 252C3, 272A
Hayden.................................... 240C3, 297C2
Holyoke................................... 222C2
Idalia.................................... 231A
Julesburg................................. 243C1
Kremmling................................. 292C3
La Jara................................... 246A
La Junta.................................. 221C3, 293C1,
La Veta................................... 277A
Lafayette................................. 234C
Lakewood.................................. 298C
Lamar..................................... 227C1, 289C1
Las Animas................................ 297A
Leadville................................. 228A
Limon..................................... 229A, 276C1
Longmont.................................. 282C1
Loveland.................................. 273C2
Manitou Springs........................... 274C
Meeker.................................... 251C
Monte Vista............................... 237A
Montrose.................................. 231C, 241C
New Castle................................ 233A
Oak Creek................................. 281C3
Otis...................................... 252C1
Ouray..................................... 289C
Pagosa Springs............................ 292C3
Palisade.................................. 253C3
Poncha Springs............................ 248A
Pueblo.................................... 245C, 255C, 260C, 264C,
296C2, 300C1
Pueblo West............................... 280C2
Rangely................................... 279C1
Ridgway................................... 279C1
Rifle..................................... 287C
Rocky Ford................................ 238C1
Rye....................................... 285A
Salida.................................... 222C3, 229C3
Security.................................. 288C3
Silverton................................. 238A
Snowmass Village.......................... 280A
Strasburg................................. *249C3, 272A
Steamboat Springs......................... 245C2, 255A
Sterling.................................. 248C3, 284C1, 289C3
Telluride................................. 285C1
Trinidad.................................. 223C1
Vail...................................... 284C1
Walden.................................... 231C2
Walsenburg................................ 272C3, 267C3
Wellington................................ 232C3
Westcliffe................................ 276A
Widefield................................. 292C2
Windsor................................... 256C
Yuma...................................... 233A, 265C3
------------------------------------------------------------------------
Effective Date Notes: 1. At 65 FR 55925, Sept. 15, 2000, Colorado
was amended by adding Rangely, Channel 279C1, by adding Ridgway, Channel
279C1, by removing Channel 279C2 and adding Channel 238A at Silverton,
effective Oct. 16, 2000.
2. At 65 FR 58229, Sept. 28, 2000, Colorado was amended by adding
Channel 248C3 at Sterling, effective Oct. 30, 2000.
Connecticut
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Bridgeport................................ 260B
Brookfield................................ 236B
Danbury................................... 252A
East Lyme................................. 254A
Enfield................................... 250A
Groton.................................... 288A
Hamden.................................... 267B
Hartford.................................. 229B, 243B, 275B, 290B, 295B
Hartford-Meriden.......................... 239B
Ledyard................................... 293A
Litchfield................................ 247A
Middletown................................ 285A
New Britain............................... 263B
New Haven................................. 232A, 256B
New London................................ 265A
Norwalk................................... 240A
Norwich................................... 249A
Pawcatuck................................. 299A
Salisbury................................. 251A
Sharon.................................... 277A
Stamford.................................. 244A
[[Page 84]]
Stonington................................ 272A
Waterbury................................. 223B, 281B
Westport.................................. 300B
Willimantic............................... 252A
------------------------------------------------------------------------
Delaware
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Bethany Beach............................. 240B1, 278A
Dover..................................... 234B
Fenwick Island............................ 221A
Laurel.................................... 237A
Lewes..................................... 290A
Milford................................... 249A, 267A
Millsboro................................. 228B
Ocean View................................ 269A
Rehoboth Beach............................ 224A
Seaford................................... 253A
Selbyville................................ 250A
Smyrna.................................... 225A
Wilmington................................ 229B, 258B
------------------------------------------------------------------------
District of Columbia
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Washington................................ 230B, 242B, 246B, 254B,
258B, 262B, 266B, 278B,
297B
------------------------------------------------------------------------
Florida
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alachua................................... 223A
Apalachicola.............................. 263C3, 288C2
Apopka.................................... 237A
Atlantic Beach............................ 283C
Avon Park................................. 256C3
Baldwin................................... 289A
Belle Glade............................... 228A
Beverly Hills............................. 292C3
Big Pine Key.............................. 239A, 281C1
Blountstown............................... 272A
Boca Raton................................ 260C
Bonifay................................... 249C1
Bonita Springs............................ 241C
Bradenton................................. 278C
Callahan.................................. 227C2
Callaway.................................. 278C1
Cape Coral................................ 280C, 292A
Carrabelle................................ 293C1
Cedar Key................................. 274C3
Century................................... 286C3
Charlotte Harbor.......................... 225C1
Chiefland................................. 300A
Clearwater................................ 239C1, 250C
Clewiston................................. 258C3
Cocoa..................................... 257C2
Cocoa Beach............................... 266C, 281C
Coral Cove................................ 300C2
Coral Gables.............................. 286C
Crawfordville............................. 231A
Crestview................................. 284C1
Cross City................................ 295C1
Crystal City.............................. 253C1
Dade City................................. 241A
Daytona Beach............................. 233C, 270C1
Defuniak Springs.......................... 276C2
Deland.................................... 290C
Destin.................................... 221C3
Dunnellon................................. 272C2
Ebro...................................... 236A
Edgewater................................. 226C3
Englewood................................. 290A
Estero.................................... 223C3
Fernandina Beach.......................... 287A
Five Points............................... 293A
Fort Lauderdale........................... 264C, 278C, 290C, 294C
Fort Mead................................. 252C2
Fort Myers................................ 237C1, 245C, 270C
Fort Myers Beach.......................... 257C2
Fort Myers Villas......................... 292C2
Fort Pierce............................... 238C1, 254C
Fort Walton Beach......................... 243C1, 258C2
Gainesville............................... 265A, 279C1, 287A
Gifford................................... 234A
Goulds.................................... 252C
Graceville................................ 269A
Green Cove Springs........................ 224A
Gretna.................................... 227A
Gulf Breeze............................... 291A
Havana.................................... 285C2
Hialeah................................... 222C2
High Springs.............................. 285A
Hobe Sound................................ 288C2
Holiday................................... 246C2
Holly Hill................................ 277A
Holmes Beach.............................. 254C3
Holt...................................... 251C1
Horseshoe Beach........................... 234C3
Homosassa Springs......................... 237A
Immokalee................................. 221A
Indian River Shores....................... 246C3
Indiantown................................ 276C2
Inglis.................................... 257A, 282A
Jacksonville.............................. 236C, 241C, 245C, 256C,
275C, 297C1
Jensen Beach.............................. 272C1
Jupiter................................... 292C3
Key Colony Beach.......................... 267C2
Key Largo................................. 292C2
Key West.................................. 224C1, 228C2, 254C1, 258C1,
296A, 300C1
LaCrosse.................................. 258A
Lafayette................................. 260C2
LaCrosse.................................. 258A
Lake City................................. 232C2
Lakeland.................................. 231C
Lehigh Acres.............................. 296C2
Live Oak.................................. 251C2, 259A, 291A
Lynn Haven................................ 282A
MacClenny................................. 221C3
Madison................................... 274A
Marathon.................................. 232C2, 249A, 288C2
Marco..................................... 255A, 266C1
Marianna.................................. 231A, 265A
Mary Esther............................... 288C3
Melbourne................................. 236A, 292C3, 296C1
Mexico Beach.............................. 25C2
Miami..................................... 226C, 243C 247C, 256C1,
268C1, 298C
Miami Beach............................... 230C, 235C
Micanopy.................................. 247C2
Midway.................................... 264C3
Milton.................................... 274C
Miramar Beach............................. 292A
Monticello................................ 289C3
Mount Dora................................ 299C
Murdock................................... 255A
Naples.................................... 228A, 233C, 284C2
Naples Park............................... 288C2
[[Page 85]]
Navarre................................... 239C3
Newberry.................................. 263C3
New Port Richey........................... 288C1
Niceville................................. 262A
Nocatee................................... 287A
North Miami Beach......................... 239C2
Ocala..................................... 224A, 229C
Orlando................................... 222C, 243C, 255C2, 262C,
286C
Ormond-By-The-Sea......................... 239C3
Othello................................... 248C2
Otter Creek............................... 240A
Palatka................................... 260C
Palm Beach................................ 250C
Panama City............................... 223C1, 253C, 290C2, 300C1
Panama City Beach......................... 261C3, 286C2
Parker.................................... 233C
Pensacola................................. 231C, 254C2, 264C, 268C,
297C
Perry..................................... 221A, 228A, 299C3
Plantation Key............................ 262C1, 276C3
Pompano Beach............................. 274C
Ponte Vedra Beach......................... 227A
Port Charlotte............................ 261C1
Port St. Joe.............................. 228C2
Port St. Lucie............................ 267A
Punta Rassa............................... 249C3
Quincy.................................... 268C1
Riviera Beach............................. 232C3
Rock Harbor............................... 271C2
Rockledge................................. 274C2
Safety Harbor............................. 223C2
San Carlos Park........................... 253C3
Santa Rosa Beach.......................... 271C3
Sarasota.................................. 273C, 282A, 293C2
Satellite Beach........................... 253A
Sebastian................................. 240C3
Sebring................................... 289C3
Silver Springs............................ 238A
Solana.................................... 285A
Springfield............................... 240C2, 266A
St. Augustine............................. 231C3, 250C2
St. Augustine Beach....................... 288C3
St. Petersburg............................ 258C, 268C1, 297C1
Starke.................................... 292A
Stuart.................................... 224C2
Summerland Key............................ 273C2
Tallahassee............................... 235C1, 241C2, 255C1, 276C2,
281C, 291A
Tampa..................................... 227C, 235C, 264C, 284C1
Tavares................................... 294C1
Tavernier................................. 245C3
Tice...................................... 275C2
Titusville................................ 251C1
Trenton................................... 269C3
Venice.................................... 221C3
Vero Beach................................ 229C2, 259C2, 269A, 279C2
Watertown................................. 271C3, 289A
West Palm Beach........................... 221C3, 282C, 300C1
White City................................ 284A
Williston................................. 267A
Wilson Creek.............................. 277C3
Winter Haven.............................. 248C
Winter Park............................... 276C3
Woodville................................. 250A
Yankeetown................................ 242A
Zolfo Springs............................. 295A
------------------------------------------------------------------------
Effective Date Notes: 1. At 65 FR 53639, Sept. 5, 2000, Florida was
amended by adding Lynn Haven, Channel 282A, effective Oct. 2, 2000.
2. At 65 FR 53640, Sept. 5, 2000, Florida was amended by adding
Channel 259A at Live Oak, effective Oct. 2, 2000.
3. At 65 FR 55925, Sept. 15, 2000, Florida was amended by adding
Holt, Channel 251C, effective Oct. 16, 2000.
Georgia
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Adel...................................... 221A
Albany.................................... 242C1, 269A, 283C1
Alma...................................... 282A
Americus.................................. 234C3, 254C3
Ashburn................................... 289A
Athens.................................... 238C, 284C
Atlanta................................... 225C1, 235C1, 241C, 253C,
259C, 277C
Augusta................................... 272A, 276A, 282C, 289C
Bainbridge................................ 247C, 270A
Baxley.................................... 233C
Blackshear................................ 286C2
Blakely................................... 266C3
Blue Ridge................................ 280A
Bolingbroke............................... 271A
Boston.................................... 292A
Bostwick.................................. 222A
Bowdon.................................... 288A
Broxton................................... 279A
Brunswick................................. 264C1, 268C, 281A
Buford.................................... 272A
Cairo..................................... 272A
Camilla................................... 288A
Canton.................................... 289C2
Carrollton................................ 221A
Chatsworth................................ 255A
Chauncey.................................. 267C2
Clarkesville.............................. 275C3
Claxton................................... 297C3
Clayton................................... 281A
Cleveland................................. 270A
Cochran................................... 244A
College Park.............................. 263C3
Columbus.................................. 275C, 285A, 297C
Coosa..................................... 237A
Cordele................................... 252A
Cornelia.................................. 257C2
Crawford.................................. 271C3
Cusseta................................... 279A
Cuthbert.................................. 264A
Dahlonega................................. 282A
Dalton.................................... 283A
Dawson.................................... 221A
Dock Junction............................. 290C3
Donalsonville............................. 292A, 298A
Douglas................................... 258C1, 294C1
Dublin.................................... 224C2, 240C1
Eastman................................... 248A
Eatonton.................................. 249C3
Elberton.................................. 286A
Ellaville................................. 290A
Ellijay................................... 228A
Evans..................................... 222A
Fayetteville.............................. 248C3
Fitzgerald................................ 245A
Folkston.................................. 223A
Forsyth................................... 261A
Fort Valley............................... 250C3, 292C2
Gainesville............................... 246C
Gainsville................................ 294C
Gibson.................................... 232A
Glennville................................ 292A
Gordon.................................... 296A
Gray...................................... 243A
[[Page 86]]
Greensboro................................ 280A
Greenville................................ 239C3
Hampton................................... 300C1
Harlem.................................... 236C3
Hawkinsville.............................. 280C3
Hazlehurst................................ 228C2
Helen..................................... 286A
Hinesville................................ 222C2, 284C3
Hogansville............................... 251C3
Homerville................................ 254A
Irwinton.................................. 279A
Jackson................................... 221A
Jacksonville.............................. 272A
Jeffersonville............................ 229C2
Jesup..................................... 288C3
Kingsland................................. 292A
La Grange................................. 281C1
Lakeland.................................. 290C3
Lavonia................................... 221A
Leesburg.................................. 278C3
Louisville................................ 221A
Lumpkin................................... 257C2
Lyons..................................... 265A
Mableton.................................. 273A
Macon..................................... 222A, 256C1, 287C1
Manchester................................ 227C
Marietta.................................. 268C
Martinez.................................. 230C3, 299C2
McRae..................................... 274A
Metter.................................... 279A
Midway.................................... 252C1
Milan..................................... 285C2
Milledgeville............................. 264A, 272A
Millen.................................... 235C3
Montezuma................................. 236A
Moultrie.................................. 230C1
Mt. Vernon................................ 269A
Nashville................................. 237C3
Ocilla.................................... 249A, 253A
Omega..................................... 298A
Peachtree City............................ 244A
Pearson................................... 270A
Pelham.................................... 222A
Perry..................................... 265A
Quitman................................... 287C3
Reidsville................................ 281A
Richmond Hill............................. 287C3
Ringgold.................................. 229A, 270A
Rockmart.................................. 296C2
Rome...................................... 249C3, 272A
Rossville................................. 288A
Roswell................................... 298C3
Royston................................... 279C3
Sandersville.............................. 260A
Savannah.................................. 226C1, 231C, 238C1, 243C,
247C, 271C
Smithville................................ 293A
Smyrna.................................... 231C
Soperton.................................. 291A
Sparta.................................... 274A
Springfield............................... 280A
St. Marys................................. 227C2
St. Simons Island......................... 224A
Statenville............................... 248A
Statesboro................................ 261C2, 275C3
Swainsboro................................ 251A, 263A
Sylvania.................................. 293A
Sylvester................................. 271A, 291A
Talking Rock.............................. 261A
Tennille.................................. 270A
Thomaston................................. 266A
Thomasville............................... 296C1
Thomson................................... 269A
Tifton.................................... 223C3, 262C
Toccoa.................................... 291C
Trenton................................... 274A
Trion..................................... 239A
Unadilla.................................. 260A
Valdosta.................................. 225C1, 239C1, 244C2, 266C1,
300C3
Vidalia................................... 249A
Vienna.................................... 221A
Warner Robins............................. 269A, 273A
Warrenton................................. 226A
Washington................................ 261A
Waycross.................................. 249A, 273C1, 277C
Waynesboro................................ 225A, 265A, 296C3
Westpoint................................. 265A
Wrens..................................... 245C3
Wrightsville.............................. 298A
Zebulon................................... 223A
------------------------------------------------------------------------
Effective Date Notes: 1. At 65 FR 56799, Sept. 20, 2000, Georgia was
amended by adding Jacksonville, Channel 272A and adding Channel 225A at
Waynesboro, effective Oct. 23, 2000.
2. At 65 FR 57745, Sept. 26, 2000, Georgia was amended by adding
Ellaville, Channel 290A, and Vienna, Channel 221A, effective Oct. 30,
2000.
Hawaii
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Aiea...................................... 300C
Captain Cook.............................. 226C1
Haiku..................................... 293C
Hali'imaile............................... 288A
Hanapepe.................................. 232C1
Hilo...................................... 224A, 234C1, 240C2, 246C2,
250C1, 262C1
Holualoa.................................. 221C2
Honokaa................................... 275C2
Honolulu.................................. 226C, 230C1, 234C1, 238C,
248C1, 253C1, 258C1, 262C1,
286C, 290C
Kahalu'u.................................. 291C
Kahului................................... 260C1, 223C2
Kailua.................................... 242C
Kailua-Kona............................... 230C
Kalaheo................................... 260C1
Kaneohe................................... 282C
Kapaa..................................... 255C1
Kaunakakai................................ 272C
Kawaihae.................................. 295A
Keaau..................................... 286C2
Kealakekua................................ 268C1
Kekaha.................................... 277C1
Kihei..................................... 298C2
Kurtistown................................ 271A
Lahaina................................... 228C, 266C1
Lanai City................................ 284C2
Lihue..................................... 228C1, 245C1, 251C1
Makawao................................... 232A
Nanakuli.................................. 295A
Paauilo................................... 279C
Pearl City................................ 270C
Poipu..................................... 240C1
Pukalani.................................. 252C2
Volcano................................... 299C3
[[Page 87]]
Wahiawa................................... 278A
Wailuku................................... 236C
Waimea.................................... 256C
Waipahu................................... 222C, 274C
------------------------------------------------------------------------
Effective Date Note: At 65 FR 58228, Sept. 28, 2000, Hawaii was
amended by adding Channel 223C2 at Kahului, effective Oct. 30, 2000.
Idaho
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Aberdeen.................................. 258C2
American Falls............................ 281C1
Ashton.................................... 243A
Blackfoot Falls........................... 247C, 268C,
Boise..................................... 222C, 250C, 282C, 286C
Bonners Ferry............................. 221A
Burley.................................... 260C
Caldwell.................................. 231C, 277C, 296C
Chubbuck.................................. 253C2
Coeur D'Alene............................. 272A
Driggs.................................... 271C1
Eagle..................................... 300C
Emmett.................................... 270C
Franklin.................................. 249A
Fruitland................................. 258C1
Garden City............................... 290C
Gooding................................... 264C3
Grangeville............................... 224C3
Hailey.................................... 294C
Hayden.................................... 233C
Hazelton.................................. 232C3
Homedale.................................. 292C
Idaho Falls............................... 241C, 256C1, 277C1, 288C1,
296C1
Island Park............................... 275C
Jerome.................................... 275C1
Ketchum................................... 284C
Kootenai.................................. 294A
Lewiston.................................. 243C1, 268C1, 286A, 295C
McCall.................................... 252C1, 266C1, 294A
Moscow.................................... 291C1
Mountain Home............................. 256C1
Nampa..................................... 235C, 245C
New Plymouth.............................. 226C
Orofino................................... 237C3, 253A
Payette................................... 262C1
Pocatello................................. 221A, 229C, 235C, 273C
Post Falls................................ 276C1
Preston................................... 244C1
Rexburg................................... 232C3, 251C1, 263C1
Rupert.................................... 223C
Salmon.................................... 224A, 233A
Sandpoint................................. 237C1, 273A
Shelley................................... 292C1
Soda Springs.............................. 261A
St. Maries................................ 221A
Sun Valley................................ 237C1, 279C, 298C
Troy...................................... 262A
Twin Falls................................ 239C1, 243C1, 252C1, 269A
Victor.................................... 222A, 282A
Weston.................................... 240A
Wallace................................... 248C2, 264C
------------------------------------------------------------------------
Illinois
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Aledo..................................... 272A
Alton..................................... 262B
Anna...................................... 243C2
Arcola.................................... 300A
Arlington Heights......................... 224A
Atlanta................................... 242A
Augusta................................... 253A
Aurora.................................... 240A, 300B
Ava....................................... 280A
Bartonville............................... 260A
Beardstown................................ 232A
Belvidere................................. 285A
Benton.................................... 292B1
Bethalto.................................. 238C3
Bloomington............................... 268B
Breese.................................... 248A
Bushnell.................................. 284A
Canton.................................... 252A, 300B1
Carbondale................................ 268C1
Carlyle................................... 244A
Carmi..................................... 247B
Carrier Mills............................. 283A
Carterville............................... 236B1
Carthage.................................. 221B1, 230A
Casey..................................... 282B1
Cedarville................................ 258A
Centralia................................. 237A
Champaign................................. 233B, 248B, 262B1
Charleston................................ 221A
Chicago................................... 226B, 230B, 234B, 238B,
242B, 246B, 250B, 254B,
258B, 262B, 266B, 278B,
282B, 298B
Chillicothe............................... 232A
Christopher............................... 278A
Clifton................................... 297A
Clinton................................... 240A
Coal City................................. 264A
Colchester................................ 244A, 281A
Colfax.................................... 255A
Columbia.................................. 285C3
Crest Hill................................ 252A
Crete..................................... 272A
Danville.................................. 235A, 256B, 271B
Decatur................................... 226A, 236B, 275B
DeKalb.................................... 223B, 235A
Des Planes................................ 294B
Dixon..................................... 269A
Duquoin................................... 240A
Dundee.................................... 280A
Dwight.................................... 255A
Earlville................................. 275A
East Moline............................... 267B
East St. Louis............................ 266C2
Effingham................................. 239B, 249A
Eldorado.................................. 272A
Elgin..................................... 232A
Elmwood................................... 247B1
Elmwood Park.............................. 290B
Erie...................................... 288A
Eureka.................................... 253A
Evanston.................................. 286B
Fairbury.................................. 299B1
Fairfield................................. 285A, 290A
Farmer City............................... 252A
Farmington................................ 234A
Fisher.................................... 273A
Flora..................................... 280A
Freeport.................................. 221A, 253B, 295A
Galatia................................... 255A
Galena.................................... 298A
Galesburg................................. 224A, 235B
Galva..................................... 273A
[[Page 88]]
Gibson City............................... 292A
Glasford.................................. 266A
Golconda.................................. 232A
Granite City.............................. 293C1
Greenville................................ 269A
Harrisburg................................ 260B
Havana.................................... 257A
Henry..................................... 263A
Herrin.................................... 224B1
Heyworth.................................. 250A
Highland Park............................. 276A
Hillsboro................................. 259B
Hoopeston................................. 265A
Jacksonville.............................. 263B
Jerseyville............................... 281B
Joliet.................................... 228A, 244A
Kankakee.................................. 224A, 236A, 260B
Kewanee................................... 230A
Knoxville................................. 287A
La Salle.................................. 257B1
Lansing................................... 292A
Lawrenceville............................. 276A
Le Roy.................................... 281B
Lena...................................... 271A
Lexington................................. 258A
Lincoln................................... 230B1
Litchfield................................ 291B
Loves Park................................ 244A
Lynnville................................. 296A
Macomb.................................... 240A, 261A, 274B1
Mahomet................................... 290A
Marion.................................... 297B
Maroa..................................... 297A
Marseilles................................ 243A
Marshall.................................. 290A
Mattoon................................... 245B
Mendota................................... 261A
Metropolis................................ 252C2, 288A
Moline.................................... 245B
Monmouth.................................. 249A
Monticello................................ 288A
Morris.................................... 276A, 284B
Morrison.................................. 274A
Morton.................................... 272A
Mount Carmel.............................. 235B
Mount Morris.............................. ............................
Mount Vernon.............................. 231B, 271B1
Mount Zion................................ 257A
Murphysboro............................... 286B1
Nashville................................. 284A
Neoga..................................... 255A, 267B1
Newton.................................... 278B1
Normal.................................... 244A, 264A
Oak Park.................................. 274B
Ogelsby................................... 271A
Olney..................................... 225B
Oregon.................................... 239A
Ottawa.................................... 237A
Pana...................................... 265A
Paris..................................... 253B
Paxton.................................... 285A
Pekin..................................... 238B1, 285A
Peoria.................................... 222A, 227B, 289B, 295B
Peru...................................... 265A
Petersburg................................ 249A
Pinckneyville............................. 282A
Pittsfield................................ 248B1
Plano..................................... 296A
Polo...................................... 299A
Pontiac................................... 229B1
Princeton................................. 251A
Quincy.................................... 258B, 280A, 286B
Ramsey.................................... 227A
Rantoul................................... 237A, 241A
Robinson.................................. 269A
Rochelle.................................. 272A
Rock Island............................... 255B
Rockford.................................. 248B, 265A
Rockton................................... 276A
Rushville................................. 223A
Salem..................................... 261A
Savanna................................... 262B1
Seneca.................................... 239A
Shelbyville............................... 286B1
Skokie.................................... 270B
South Jacksonville........................ 288A
Spring Valley............................. 277A
Springfield............................... 254B, 270B, 279B, 283B
Staunton.................................. 287A
Sterling.................................. 232A
Streator.................................. 249A, 291A
Sullivan.................................. 294B1
Taylorville............................... 224B1, 232A, 247A
Teutopolis................................ 272A
Tower Hill................................ 252A
Tuscola................................... 228A
Urbana.................................... 223B1, 296A
Vandalia.................................. 296A
Virden.................................... 244A
Virginia.................................. 267A
Watseka................................... 231B, 240A
Waukegan.................................. 272A
West Frankfort............................ 249A
Wilmington................................ 288A
Winnebago................................. 237A
Woodlawn.................................. 295A
Woodstock................................. 288A
Zion...................................... 245B
------------------------------------------------------------------------
Effective Date Note: At 65 FR 55926, Sept. 15, 2000, Illinois was
amended by adding Erie, Channel 288A, effective Oct. 16, 2000.
Indiana
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alexandria................................ 224A
Anderson.................................. 250B, 254A
Angola.................................... 262A
Attica.................................... 239A
Auburn.................................... 272A
Aurora.................................... 257A
Austin.................................... 224A, 242A
Batesville................................ 280A
Battle Ground............................. 254A
Bedford................................... 288A
Berne..................................... 224A
Bicknell.................................. 289A
Bloomfield................................ 266A
Bloomington............................... 222B, 224A, 279B
Bluffton.................................. 261A
Booneville................................ 296A
Brazil.................................... 249A
Bremen.................................... 245A
Brookston................................. 237A
Brownsburg................................ 270A
Cannelton................................. 275C3
Chandler.................................. 228A
Charlestown............................... 282A
Churubusco................................ 242B1
Clarksville............................... 226A
Clinton................................... 230A
[[Page 89]]
Columbia City............................. 292A
Columbus.................................. 268B, 285A
Connersville.............................. 262B
Corydon................................... 243A, 299B1
Covington................................. 276A
Crawfordsville............................ 280A, 292A
Crown Point............................... 280A
Culver.................................... 252A
Danville.................................. 296A
Decatur................................... 286B1
Delphi.................................... 275A
Earl Park................................. 251B1
Edinburgh................................. 275A
Elkhart................................... 264B, 284B
Ellettsville.............................. 286A
Elwood.................................... 269A
Evansville................................ 281B, 287B, 298A
Farmersburg............................... 242A
Ferdinand................................. 253A
Fort Branch............................... 268A
Fort Wayne................................ 222A, 236B, 247B, 269A, 280A
Fowler.................................... 291A
Frankfort................................. 259B
Franklin.................................. 240A
French Lick............................... 261A
Goshen.................................... 249A
Greencastle............................... 232A
Greenfield................................ 258B
Greensburg................................ 297B
Greenwood................................. 294A
Hammond................................... 222B
Hardinsburg............................... 245A
Hartford City............................. 228A
Huntingburg............................... 265B1
Huntington................................ 275A
Indianapolis.............................. 226B, 234B, 238B, 242A,
277B, 283B, 289B, 300B
Jasper.................................... 284B
Jeffersonville............................ 239B
Kendallville.............................. 227B
Kentland.................................. 269A
Knox...................................... 257A
Kokomo.................................... 223A, 263B
La Porte.................................. 244A
Lafayette................................. 228A, 243B, 287B
Lagrange.................................. 288A
Lebanon................................... 265A
Ligonier.................................. 274A
Linton.................................... 227B1
Logansport................................ 272A
Loogootee................................. 233A
Lowell.................................... 296A
Madison................................... 244A, 266A
Marion.................................... 295B
Martinsville.............................. 272A
Michigan City............................. 240A
Mitchell.................................. 273A
Monticello................................ 299A
Mount Vernon.............................. 294A
Muncie.................................... 221A, 281B, 285A
Nappanee.................................. 239A
Nashville................................. 236A
New Albany................................ 234A
New Carlisle.............................. 272A
New Castle................................ 273B
New Haven................................. 300A
Newburgh.................................. 291A
Noblesville............................... 230A
North Vernon.............................. 291B
Paoli..................................... 237A
Peru...................................... 253A
Petersburg................................ 272A
Plainfield................................ 252A
Plymouth.................................. 232B1
Portland.................................. 265A
Princeton................................. 251B, 263A
Rensselaer................................ 249A
Richmond.................................. 241B, 267B
Roann..................................... 270A
Roanoke................................... 231A
Rochester................................. 221A
Rockville................................. 285A
Royal Center.............................. 279A
Rushville................................. 232A
Salem..................................... 250A
Santa Clause.............................. 277A
Scottsburg................................ 287A
Seelyville................................ 240A
Seymour................................... 229B
Shelbyville............................... 246B
South Bend................................ 225B, 268B, 276A, 280A, 292A
South Whitley............................. 266A
Spencer................................... 224A
Sullivan.................................. 237A
Syracuse.................................. 278A
Tell City................................. 289A
Terre Haute............................... 260B, 264B, 274B, 298B
Valparaiso................................ 288A
Van Buren................................. 257A
Veedersburg............................... 225A
Versailles................................ 276A
Vevay..................................... 240A
Vincennes................................. 221A, 244A
Wabash.................................... 240A, 290A
Walton.................................... 229A
Warsaw.................................... 297B
Washington................................ 293B, 300A
West Lafayette............................ *267A, 294A
West Terre Haute.......................... 288A
Winamac................................... 261A
Winchester................................ 252A
------------------------------------------------------------------------
Effective Date Note: At 65 FR 58230, Sept. 28, 2000, Indiana was
amended by adding Culver, Channel 252A, effective Oct. 30, 2000.
Iowa
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Albia..................................... 244C3
Algona.................................... 224C2
Alta...................................... 248A
Ames...................................... 281C, 286C3
Anamosa................................... 239A
Ankeny.................................... 292C3
Asbury.................................... 238A, 277C3
Atlantic.................................. 239C3
Audubon................................... 243C1
Belle Plaine.............................. 238C3
Bettendorf................................ 228A
Bloomfield................................ 292C3
Boone..................................... 252C2, 257A
Britt..................................... 258A
Brooklyn.................................. 256C2
Burlington................................ 228A, 297C1, 276C3
Carroll................................... 229C1
Castana................................... 298C3
Cedar Falls............................... 253C3
Cedar Rapids.............................. 243C1, 251C1, 275C1, 283C1
Centerville............................... 254C1
Chariton.................................. 287C2
[[Page 90]]
Charles City.............................. 240A
Cherokee.................................. 221A 272A
Clarinda.................................. 257C2
Clarion................................... 245C1
Clear Lake................................ 276A
Clinton................................... 241C1, 234A
Council Bluffs............................ 253C
Cresco.................................... 272A
Creston................................... 267C3
Davenport................................. 279C, 293C1
Decorah................................... 263C2, 284A
Denison................................... 296A
Des Moines................................ 227C1, 235C, 247C1, 262C,
273C, 298C1
DeWitt.................................... 285C3
Dubuque................................... 225C1, 272A, 287C2
Dunkerton................................. 280A
Dyersville................................ 257A
Eagle Grove............................... 264C3
Eddyville................................. 268C2
Eldon..................................... 282C3
Eldora.................................... 258A
Emmetsburg................................ 252A, 261A
Epworth................................... 247C3
Estherville............................... 240C3
Fairfield................................. 240A
Forest City............................... 297C2
Fort Dodge................................ 221A, 233C1
Fort Madison.............................. 269A
Garnavillo................................ 261A
Glenwood.................................. 279C
Grinnell.................................. 294C2
Grundy Center............................. 249C3
Hampton................................... 285A
Harlan.................................... 287C3
Hudson.................................... 241A
Humboldt.................................. 249A
Ida Grove................................. 225C3
Independence.............................. 237A
Iowa City................................. 231C1, 264C1
Iowa Falls................................ 237A
Jefferson................................. 255C3
Keokuk.................................... 237C1
Keosauqua................................. 271C3
Knoxville................................. 221C3
Lake City................................. 294C3
Lamoni.................................... 250C3
Le Mars................................... 258C1
Madrid.................................... 241A
Manchester................................ 234C3
Manson.................................... 259A
Maquoketa................................. 236A
Marshalltown.............................. 266C1
Mason City................................ 230C1, 250A, 291C1
Milford................................... 271C2
Mount Pleasant............................ 288C3
Moville................................... 246A
Muscatine................................. 226A, 259C1
New Hampton............................... 236A
New London................................ 247A
New Sharon................................ 260C3
Newell.................................... 265A
Newton.................................... 240A
Northwood................................. 274C3
Oelwein................................... 222C
Onawa..................................... 272C1
Osage..................................... 254A
Osceola................................... 296C2
Oskaloosa................................. 285C2
Ottumwa................................... 224C3, 249C3
Pacific Junction.......................... 299A
Parkersburg............................... 255A
Patterson................................. 290A
Pella..................................... 277C1
Perry..................................... 288A
Pleasantville............................. 242A
Red Oak................................... 237C3
Rockford.................................. 225A
Rock Valley............................... 295C3
Rudd...................................... 268A
Sac City.................................. 284A
Sageville................................. 291A
St. Ansgar................................ 238A
Sheldon................................... 287C2
Sibley.................................... 262A, 282A
Sioux Center.............................. 230C2
Sioux City................................ 238C1, 250C1, 277C1
Sioux Rapids.............................. 275C2
Spencer................................... 285C3, 299C1
Spirit Lake............................... 280C2
Storm Lake................................ 269C1
Stuart.................................... 300C3
Twin Lakes................................ 290C3
Washington................................ 291A
Waterloo.................................. 270C, 289C, 300C
Waukon.................................... 278C2
Waverly................................... 257A
Webster City.............................. 239C3
West Des Moines........................... 223C2
Winterset................................. 258A
------------------------------------------------------------------------
Kansas
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Abilene................................... 253C1
Andover................................... 230C3
Arkansas City............................. 273A, 293C
Atkins.................................... 257A
Augusta................................... 283C2, 263A
Baxter Springs............................ 296A
Belle Plaine.............................. 224C3
Belleville................................ 221C3
Beloit.................................... 288C2
Burdett................................... 228A
Burlington................................ 237A
Caney..................................... 266A
Cawker City............................... 242C3
Chanute................................... 228A
Cimarron.................................. 222A
Clay Center............................... 265C3
Clearwater................................ 254C2
Coffeyville............................... 225A
Colby..................................... 250C1, 262C1
Columbus.................................. 287C3
Concordia................................. 235C1
Copeland.................................. 251C1, 256C1, *280C1
Council Grove............................. 281C3
Dearing................................... 251C3
Derby..................................... 242C2
Dodge City................................ 230C1, 238C1
Downs..................................... 231C2
El Dorado................................. 256C1
Emporia................................... 258A, 269A, 285A
Eureka.................................... 228A
Fort Scott................................ 280A, 284C3
Fredonia.................................. 281A
Galena.................................... 282A
Garden City............................... 247C1
Girard.................................... 256A
Goodland.................................. 273C1, 299C1
Great Bend................................ 282C1, 300C1
Hays...................................... 258C1, 277C, 289C2
[[Page 91]]
Haysville................................. 287C
Herington................................. 289C3
Hiawatha.................................. 280C2
Hill City................................. 270C
Hoisington................................ 264C1
Horton.................................... 229C3
Hugoton................................... 294C2
Humboldt.................................. 232C3
Hutchinson................................ 240A, 246C3, 271C, 275C
Independence.............................. 275A
Ingalls................................... 242C1, 290C1
Iola...................................... 257A
Junction City............................. 233C1
Kansas City............................... 231C, 251C
Kingman................................... 232C2, 262C2
Kiowa..................................... 252C1
Larned.................................... 255C3, 295C1
Lawrence.................................. 290C1
Leavenworth............................... 255C
Leoti..................................... 260C1
Liberal................................... 268C1, 274C1, 286C2, 298C1
Lindsborg................................. 269C3, 238C3
Lyons..................................... 291C1
Manhattan................................. 268C2, 284C2
Marysville................................ 276C3
McPherson................................. 244A
Medicine Lodge............................ 269C2
Minneapolis............................... 224C2
Ness City................................. 285A
Newton.................................... 222C1
North Fort Riley.......................... 273C1
Norton.................................... 294A
Oberlin................................... 266C1
Ogden..................................... 278C2
Olathe.................................... 222C3
Olpe...................................... 276A
Osage City................................ 225C2
Ottawa.................................... 239C1
Parsons................................... 228A
Phillipsburg.............................. 223C1, 237A
Pittsburg................................. 245C1
Plainville................................ 245C1
Pratt..................................... 226C
Riley..................................... 242C3
Rozel..................................... 273A
Russell................................... 240A
Salina.................................... 229C1, 260C1, 285A
Scott City................................ 223C1
Seneca.................................... 221A
Silver Lake............................... 223A
Sterling.................................. 234C3
St. Marys................................. 275C2
Topeka.................................... 247C, 257A, 262C, 295C, 299C
Wamego.................................... 237A
Wellington................................ 228A
Wichita................................... 236C1, 250C, 267C, 279C1,
297C1
Winfield.................................. 240C3, 300C2
------------------------------------------------------------------------
Effective Date Note: At 65 FR 58229, Sept. 28, 2000, Kansas was
amended by adding Olpe, Channel 276A, effective Oct. 30, 2000.
Kentucky
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Albany.................................... 292A
Allen..................................... 261A
Annville.................................. 244A
Ashland................................... 229C1
Barbourville.............................. 241C3
Bardstown................................. 244A
Beattyville............................... 271A
Benton.................................... 256A
Berea..................................... 294A
Bowling Green............................. 244C3, 227C3
Brandenburg............................... 228A
Brodhead.................................. 270A
Brownsville............................... 264C3
Burkesville............................... 300A
Burnside.................................. 230C2
Calvert City.............................. 239A
Campbellsville............................ 281C3
Campton................................... 279A
Carlisle.................................. 221C2
Carrollton................................ 237A
Catlettsburg.............................. 224A
Cave City................................. 279C3
Central City.............................. 270C1
Clinton................................... 271C3
Columbia.................................. 228A
Corbin.................................... 258C2, 297C2
Cumberland................................ 274A
Cynthiana................................. 272A
Danville.................................. 296A
Drakesboro................................ 280A
Edmonton.................................. 256A
Elizabethtown............................. 252C3, 261A
Elkhorn City.............................. 276A
Eminence.................................. 289A
Erlanger.................................. 265A
Falmouth.................................. 298A
Flemingsburg.............................. 236A
Fort Campbell............................. 300C1
Fort Knox................................. 288A
Frankfort................................. 279A, 285A
Fredonia.................................. 221A
Fulton.................................... 257A
Garrison.................................. 252A
Georgetown................................ 277A
Glasgow................................... 231A, 236C, 287C3
Grayson................................... 272A
Greensburg................................ 276A
Greenup................................... 289C3
Greenville................................ 228C3
Hardinsburg............................... 232C2, 282A
Harlan.................................... 286A
Harold.................................... 285A
Harrodsburg............................... 257A
Hartford.................................. 292A
Hazard.................................... 266C, 284A
Henderson................................. 258C, 276A
Hindman................................... 296A
Hodgenville............................... 292A
Hopkinsville.............................. 248A, 254C1, 262C
Horse Cave................................ 294A
Hyden..................................... 250C3
Irvine.................................... 264C3
Jackson................................... 293A
Jamestown................................. 285A
Jeffersontown............................. 267A
Jenkins................................... 232C2
La Center................................. 282A
Lancaster................................. 286A
Lawrenceburg.............................. 271A
Lebanon................................... 265C3
Leitchfield............................... 285A
Lexington................................. 225C1, 233C1, 251C1
Lexington-Fayette......................... 283C2
Liberty................................... 254C3
London.................................... 222C3, 280A
Louisa.................................... 222A
Louisville................................ 248C1, 259B, 263C2, 272A,
280A, 295B
[[Page 92]]
Madisonville.............................. 230C2
Manchester................................ 276A, 289C3
Mannsville................................ 260C3
Marion.................................... 274A
Mayfield.................................. 234C2
Maysville................................. 240A
McKee..................................... 300A
Middlesboro............................... 224A
Midway.................................... 300A
Monticello................................ 226A, 269A
Morehead.................................. 242A, 291C3
Morganfield............................... 237A
Mount Sterling............................ 288C3, 294B1
Mount Vernon.............................. 275A
Munfordville.............................. 272A
Murray.................................... 279C1
Nicholasville............................. 273A
Oak Grove................................. 293C3
Owensboro................................. 223C, 241C
Owingsville............................... 299A
Paducah................................... 227C1, 245C1
Paintsville............................... 255C1
Paris..................................... 245C2
Philpot................................... 234A
Pikeville................................. 226C2
Pineville................................. 292A
Prestonsburg.............................. 238C, 287A
Princeton................................. 285A
Providence................................ 249A
Radcliff.................................. 278C3
Reidland.................................. 294A
Richmond.................................. 268C3
Russellville.............................. 266C1
Russell Springs........................... 224A
St. Matthews.............................. 276A
Salyersville.............................. 247C3
Scottsville............................... 257A
Shelbyville............................... 269A
Shepherdsville............................ 286A
Smith Mills............................... 233A
Smiths Grove.............................. 296C2
Somerset.................................. 246C2, 272A
Springfield............................... 274A
Stamping Ground........................... 241A
Stanford.................................. 242C3
Stanton................................... 285A
Sturgis................................... 267A
Tompkinsville............................. 221A, 274A
Valley Station............................ 290A
Vanceburg................................. 285A
Vancleve.................................. 260A
Versailles................................ 292A
Vine Grove................................ 268A
Virgie.................................... 298A
Whitesburg................................ 280A
Whitesville............................... 246A
Whitley City.............................. 252A
Wickliffe................................. 240A
Williamsburg.............................. 282A
Williamstown.............................. 293A
Wilmore................................... 237A
Winchester................................ 261C2
West Liberty.............................. 275A
Westwood.................................. 259A
------------------------------------------------------------------------
Louisiana
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Abbeville................................. 286C3
Alexandria................................ 226C, 230A, 245C, 262C, 295A
Amite..................................... 243A
Arcadia................................... 223A
Atlanta................................... 293A
Baker..................................... 297A
Ball...................................... 288A
Basile.................................... 271C1
Bastrop................................... 230C3, 232A, 261C2, 247A
Baton Rouge............................... 251C, 264C1, 268C, 273C
Bayou Vista............................... 237C3
Belle Chasse.............................. 275C3
Benton.................................... 221A
Berwick................................... 290A
Blanchard................................. 271C3
Boyce..................................... 272C3
Breaux Bridge............................. 243C2
Brusly.................................... 241C2
Bunkie.................................... 282C3
Clayton................................... 257A
Clinton................................... 224C2
Columbia.................................. 276C3
Coushatta................................. 235C2
Crowley................................... 275C
Delhi..................................... 228A
Deridder.................................. 221C3, 250C2
Donaldsonville............................ 285A
Dubach.................................... 249C1
Empire.................................... 283C2
Erath..................................... 300C1
Eunice.................................... 288A
Farmerville............................... 224A
Ferriday.................................. 296C3
Folsom.................................... 285A
Franklin.................................. 288A, 295C3
Franklinton............................... 255A
Galliano.................................. 232C1
Gibsland.................................. 283A
Golden Meadow............................. 289C2
Hammond................................... 277C, 296A
Haughton.................................. 279A
Haynesville............................... 288A
Hodge..................................... 231C2
Homer..................................... 272A, 294C2
Houma..................................... 281C, 298C1
Jackson................................... 283A
Jena...................................... 274A
Jennings.................................. 225C2
Jonesboro................................. 285C3
Jonesville................................ 286A
Kaplan.................................... 247C2
Kenner.................................... 287C1
Kentwood.................................. 231C1
Lacombe................................... 234A
Lafayette................................. 233C, 238C2, 260C
Lake Arthur............................... 298C2
Lake Charles.............................. 241C, 258C1, 279C1
Lake Providence........................... 224A
LaPlace................................... 222C
Larose.................................... 262C2
Leesville................................. 224A, 228C3, 289C3
Mamou..................................... 266C3
Mansfield................................. 224A, 284C3
Mansura................................... 240A
Many...................................... 296C3
Marksville................................ 249A
Maurice................................... 292A
Minden.................................... 239C2
Monroe.................................... 270C, 281C, 287C2, 291C
Moreauville............................... 221A
Morgan City............................... 244C3
Moss Bluff................................ 285C3
Natchitoches.............................. 247C3, 264C3
New Iberia................................ 229C1, 256C
[[Page 93]]
New Orleans............................... 227C, 239C, 246C, 253C1,
258C, 266C, 270C
New Roads................................. 293C2
North Fort Polk........................... 294A
Oak Grove................................. 244C3
Oakdale................................... 254C1
Opelousas................................. 290A, 296A
Port Sulphur.............................. 294C1
Rayne..................................... 294A
Rayville.................................. 222C2
Reserve................................... 235C3
Richwood.................................. 265A
Ringgold.................................. 253C3
Ruston.................................... 257C3, 298C
Shreveport................................ 229C, 233C, 243C1, 259C2,
266C, 275C2
Simmesport................................ 287A
South Fort Polk........................... 239A
Springhill................................ 225C2
Sulphur................................... 267C3
Tallulah.................................. 248A, 283C3
Thibodaux................................. 292C3
Tioga..................................... 278C2
Varnado................................... 225A
Vidalia................................... 284A
Ville Platte.............................. 223A
Vivian.................................... 287A
Washington................................ 284C3
West Monroe............................... 252C2
Winnfield................................. 221A
Winnsboro................................. 240A
------------------------------------------------------------------------
Effective Date Note: At 65 FR 56800, Sept. 20, 2000, Louisiana was
amended by removing Channel 287C2 at Lake Charles, and adding Moss
Bluff, Channel 285C3, effective Oct. 23, 2000.
Maine
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Auburn.................................... 260B
Augusta................................... 222B, 267B
Bangor.................................... 225B, 246B
Bar Harbor................................ 256B, 299B1
Bath...................................... 290B
Belfast................................... 284B
Biddeford................................. 232B1
Boothbay Harbor........................... 244B1
Brewer.................................... 262B, 293C
Brunswick................................. 255B
Calais.................................... 224A
Camden.................................... 273B
Caribou................................... 249C3
Dennysville............................... 275C1
Dexter.................................... 271C2
Dover-Foxcroft............................ 276A
Ellsworth................................. 233B, 239B
Fairfield................................. 228C3
Farmington................................ 257A
Fort Kent................................. *293C3
Gardiner.................................. 282B
Houlton................................... 261C3
Howland................................... 280C
Islesboro................................. 288B1
Kennebunk................................. 257A
Kennebunkport............................. 284A
Kittery................................... 287A
Lewiston.................................. 230B, 298B
Lincoln................................... 289C2
Machias................................... 237A, 266B
Madawaska................................. 272A
Madison................................... 248A
Mexico.................................... 264A
Milbridge................................. 229B
Millinocket............................... 235C2
North Windham............................. 294A
Norway.................................... 224A
Old Town.................................. 297C2
Pittsfield................................ 258A
Portland.................................. 226B, 250B, 270B, 275C
Presque Isle.............................. 241C, 245C, 270C2, 291C
Rockland.................................. 277B
Rumford................................... 242C
Saco...................................... 240A
Sanford................................... 221A
Scarborough............................... 292A
Searsport................................. 269A
Skowhegan................................. 286C, 300C3
Thomaston................................. 295, 295B
Topsham................................... 238A
Van Buren................................. 251A
Waterville................................ 253C2
Westbrook................................. 265B1
Winslow................................... 237A
Winter Harbor............................. 249B
York Center............................... 237A
------------------------------------------------------------------------
Maryland
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Annapolis................................. 256B, 300B
Baltimore................................. 222B, 226B, 236B, 250B,
270B, 274B, 282B, 293B
Berlin.................................... 280A
Bethesda.................................. 234B, 272A
Braddock Heights.......................... 280A
California................................ 275A
Cambridge................................. 292A
Catonsville............................... 289B
Crisfield................................. 245A
Cumberland................................ 275B, 291B
Easton.................................... 244B1
Federalsburg.............................. 296A
Frederick................................. 260B
Frostburg................................. *246A, 287B
Glen Burnie............................... 240A
Grasonville............................... 276A
Hagerstown................................ 284B, 295B
Halfway................................... 244A
Havre De Grace............................ 279B
Hurlock................................... 265A
Lexington Park............................ 249A
Mechanicsville............................ 252A
Middletown................................ 276A
Midland................................... 258A
Morningside............................... 238B
Mountain Lake Park........................ 283A
Oakland................................... 222A
Ocean City................................ 260B, 295A
Ocean City-Salisbury...................... 284B
Ocean Pines............................... 246A
Pocomoke City............................. 223A, 293A
Prince Frederick.......................... 224A
Princess Anne............................. 273B
Salisbury................................. 248A, 255A, 288A
Snow Hill................................. 266A
St. Michaels.............................. 232A
Waldorf................................... 281, 281B
[[Page 94]]
Westernport............................... 266A
Westminster............................... 264B
Williamsport.............................. 240A
------------------------------------------------------------------------
Massachusetts
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Amherst................................... 265A
Athol..................................... 260A
Barnstable................................ 260B
Boston.................................... 233B, 245B, 253B, 264B,
277B, 281B, 294B
Brewster.................................. 232A
Brockton.................................. 249A
Brookline................................. 225B
Cambridge................................. 237A
Chatham................................... 298B
Fairhaven................................. 296A
Falmouth.................................. 270B
Fitchburg................................. 283B
Framingham................................ 289B
Gloucester................................ 285A
Great Barrington.......................... 286A
Greenfield................................ 237A, 252A
Harwichport............................... 228A
Haverhill................................. 223B
Hyannis................................... 275A, 291B
Lawrence.................................. 229B
Lowell.................................... 258B
Lynn...................................... 269A
Marshfield................................ 240A
Mashpee................................... 266A
Medford................................... 300B
Nantucket................................. 242B
New Bedford............................... 247B, 251B
North Adams............................... 261A
Northampton............................... 257A, 292A
Orange.................................... 247A
Orleans................................... 284B
Pittsfield................................ 240A, 269A, 288A
Plymouth.................................. 256B
Provincetown.............................. *221A
Southbridge............................... 261A
South Yarmouth............................ 280A
Springfield............................... 226B, 234B, 271B
Taunton................................... 227B
Tisbury................................... 224A
Truro..................................... 272A
Turners Falls............................. 230A
Waltham................................... 273B
Webster................................... 255A
West Tisbury.............................. 282A
West Yarmouth............................. 235B
Winchendon................................ 249A
Worcester................................. 241B, 297B
------------------------------------------------------------------------
Michigan
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Adrian.................................... 237A, 280A
Albion.................................... 244A
Allegan................................... 222A
Alma...................................... 285A
Alpena.................................... 257C2, 299C1
Ann Arbor................................. 275B, 296A
Ashley.................................... 223A
Atlanta................................... 223C
Bad Axe................................... 271C2
Baraga.................................... 282C1
Battle Creek.............................. 237A, 277B
Bay City.................................. 241C, 273B
Bear Lake................................. 261A
Beaverton................................. 249A
Benton Harbor............................. 235A, 260B
Beulah.................................... 221A
Big Rapids................................ 265A, 272C3
Birmingham................................ 234B
Boyne City................................ 228C2
Bridgman.................................. 248A
Bronson................................... *234A
Brooklyn.................................. 287A
Buchanan.................................. 256A
Cadillac.................................. 225C, 244C3, 296A
Caro...................................... 221A
Carrollton................................ 263A
Charlevoix................................ 290C1, 300A
Charlotte................................. 224A
Carney.................................... 260A
Cheboygan................................. 286C1
Clare..................................... 237A
Coldwater................................. 253B
Coleman................................... 269A
Crystal Falls............................. 235A, 264A
Dearborn.................................. 262B
Detroit................................... 222B, 226B, 238B, 242B,
246B, 250B, 254B, 258B,
266B, 270B, 278B, 282B,
286B, 290B, 294B, 298B
Dewitt.................................... 243A
Dowagiac.................................. 221A
East Jordan............................... 265A
East Lansing.............................. 235B, 256B
Escanaba.................................. 284C, 246C
Essexville................................ 247A
Fife Lake................................. 240A
Flint..................................... 224A, 236B, 288B1, 300B
Frankenmuth............................... 229A
Frankfort................................. 257C2
Gaylord................................... 268A, 294C1
Gladstone................................. 288C3
Gladwin................................... 276C3,
Glen Arbor................................ 227A, 238C2, 251C2
Grand Haven............................... 221A
Grand Rapids.............................. 229B, 239B, 245B, 250B,
254A, 267B, 275B, 281B,
289B
Grayling.................................. 262C1
Greenville................................ 297B
Gulliver.................................. 273C1
Gwinn..................................... 262C3
Hancock................................... 228C3, 254C2
Harbor Beach.............................. 279C2
Harbor Springs............................ 280C2
Harrietta................................. 229A
Harrison.................................. 221A
Hart...................................... 287C1
Hartford.................................. 279A
Hastings.................................. 261A
Hillman................................... 235C2
Hillsdale................................. 221A
Holland................................... 233B, 241B
Holton.................................... 261A
Honor..................................... 264A
Houghton.................................. 242C1, 249A, 272C2
Houghton Lake............................. 253C1
Howell.................................... 228A
Hubbardston............................... 279A
Hudson.................................... 273A
Iron Mountain............................. 226C1, 268C1, 294A
Iron River................................ 256C2
Ironwood.................................. 259C1, 295C1
[[Page 95]]
Ishpeming................................. 222C, 298C1
Jackson................................... 231B, 283A, 291B
Kalamazoo................................. 271B, 293B, 299B
Kalkaska.................................. 248C2
Kingsford................................. 251A
L'Anse.................................... 291C2
Lake City................................. *285A
Lakeview.................................. 292A
Lansing................................... 248B, 264B, 269A
Lapeer.................................... 276A
Leland.................................... 232C2
Lexington................................. 245A
Ludington................................. 292A
Mackinaw City............................. 233C3
Manistee.................................. 249A, 268A
Manistique................................ 260A
Marlette.................................. 223A
Marquette................................. 239C1, 277C1, 231A
Marshall.................................. 285A
McMillan.................................. 244C3
Menominee................................. 279C3
Midland................................... 227C2, 259C
Mio....................................... 280C2
Monroe.................................... 252A
Mount Clemens............................. 274B
Mount Pleasant............................ 233C1, 282A
Munising.................................. 252 C2
Muskegon.................................. 283B, 295B, 300B1
Muskegon Heights.......................... 269B1
Negaunee.................................. 258A, 270C2
Newaygo................................... 223A
Newberry.................................. 229A, 250C2
Niles..................................... 237A
North Muskegon............................ 252A
Norway.................................... 232C3
Ontonagon................................. 266C1
Oscoda.................................... 239 C2, 264C3
Otsego.................................... 265A
Owosso.................................... 280A
Pentwater................................. 231C3, 274A
Petoskey.................................. 242C1, 255C1
Pickford.................................. 288C1
Pinconning................................ 265A, 281A
Port Huron................................ 272A, 296A
Portage................................... 243A
Powers.................................... 297C3
Reed City................................. 247A
Republic.................................. 244A
Rogers City............................... 244C2, 260C2
Roscommon................................. 266A
Saginaw................................... 251B, 283A, 292A, 296A
Sandusky.................................. 249A
Saugatuck................................. 224A
Sault Ste. Marie.......................... 252C3, 258C2, 267C1, *272C3
Scottville................................ 235C3
South Haven............................... 252A
Spring Arbor.............................. 295A
St. Ignace................................ 275C
St. Johns................................. 221A
St. Joseph................................ 296A
Standish.................................. 245A
Stephenson................................ 257A, 292C2
Sturgis................................... 257A
Tawas City................................ 277A, 284C2, 291C3
Three Rivers.............................. 240A
Traverse City............................. 270C1, 278C, 283A, 29C2
Tuscola................................... 268A
Vassar.................................... 255A
Walhalla.................................. 255A
Walker.................................... 263A
West Branch............................... 288A
Whitehall................................. 237A, 248A
Zeeland................................... 257A
------------------------------------------------------------------------
Minnesota
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Ada....................................... 292A
Aitkin.................................... 232C3
Albany.................................... 288A
Albert Lea................................ 235A, 241A
Alexandria................................ 222C3, 257A, 264C1
Anoka..................................... 300C
Atwater................................... 231A
Austin.................................... 260C1
Babbitt................................... 294C2
Bagley.................................... 244C3
Bemidji................................... 238C1, 266C1, 279C1
Benson.................................... 228A
Belview................................... 290A
Blackduck................................. 221A, 252C2, 283A
Blooming Prarie........................... 265C1
Blue Earth................................ 251C3, 283C2
Brainerd.................................. 278C3, 294C1, 298C1
Breckenridge.............................. 286C1
Breezy Point.............................. 282 C2
Browerville............................... 259A
Buhl...................................... *223C2
Caledonia................................. 234A
Cambridge................................. 287C3
Cloquet................................... 243C3, 263C1
Cold Spring............................... 235C2
Coleraine................................. 241C1
Crookston................................. 241C1, 246C1
Crosby.................................... 268C3
Dassel.................................... 295C3
Deer River................................ 288C1
Detroit Lakes............................. 236C1, 272C2
Duluth.................................... 225C1, 235C1, 239C1, *240C2,
255C2, 269C2, 277C1, 286C1
East Grand Forks.......................... 282C1
Eden Prairie.............................. 289A
Elk River................................. 291C2
Ely....................................... 233A
Eveleth................................... 250C1
Farimont.................................. 293C1
Fairbault................................. 298C2
Fergus Falls.............................. 243C1, 277C1
Forest Lake............................... 240A
Fosston................................... 296C2
Glencoe................................... 242C2
Glenwood.................................. 296A
Golden Valley............................. 223C
Grand Marais.............................. 237C1
Grand Rapids.............................. 245C1
Granite Falls............................. 230A
Hermantown................................ 221C3
Hibbing................................... 230C1, 292C3
International Falls....................... 258C1, 281C3
Jackson................................... 289C3
Kelliher.................................. 273A
La Crescent............................... 274C3
Lake City................................. 235A, 273C3
Lake Crystal.............................. 239A
Lakeville................................. 286A
Lanesboro................................. 280A
Little Falls.............................. 221A, 231A
Luverne................................... 266C1
Madison................................... 221C3
Mahnomen.................................. 268C3
Mankato................................... 256C1, 278C1
Marshall.................................. 259C1, 298C3
[[Page 96]]
Minneapolis............................... 229C, 246C, 253C, 258C,
262C1, 275C
Mantevideo................................ 288A
Moose Lake................................ 296A
Moorhead.................................. 254C1, 260C1
Mora...................................... 238C3
Morris.................................... 239C1
Nashwauk.................................. 275C3
New Prague................................ 238A
New Ulm................................... 226C1
Nisswa.................................... 227C
North Mankato............................. 244C3
Olivia.................................... 261C3
Ortonville................................ 268C, 292A
Osakis.................................... 280A
Owatonna.................................. 285A
Park Rapids............................... 223C3, 248C1
Paynesville............................... 255C2
Pelican Rapids............................ 281C2
Perham.................................... 258A
Pequot Lakes.............................. 261A, 274C2
Pillager.................................. 240A
Pine City................................. 265A
Pipestone................................. 254C
Preston................................... 276C3
Proctor................................... 299C2
Red Lake.................................. 231C1
Red Wing.................................. 290A, 290C3
Redwood Falls............................. 249C1
Richfield................................. 267C
Rochester................................. *225A, 243C2, 248C, 269C2,
295C
Roseau.................................... 271C2, 278C2
Rushford.................................. 257C3
Saint Joseph.............................. 260A
Sartell................................... 244C2
Sauk Centre............................... 232A
Sauk Rapids............................... 269C2
Slayton................................... 291C2
Sleepy Eye................................ 297A
Spring Grove.............................. 252C2
Spring Valley............................. 282C3
Springfield............................... 234C2
St. Charles............................... 299A
St. Cloud................................. 251C, 284C
St. James................................. 263C2, 268C3
St. Joseph................................ 225C3
St. Louis Park............................ 281C
St. Paul.................................. 233C, 237A, 271C
St. Peter................................. 288C3
Staples................................... 234C2
Starbuck.................................. 247C2
Stewartville.............................. 287C2
Thief River Falls......................... 257C3, 262C1, 274C1
Tracy..................................... 286C2
Two Harbors............................... 282C2
Vernon Center............................. 231A
Virginia.................................. 260C1
Wadena.................................... 290C1
Waite Park................................ 279C3
Walker.................................... 256C1, 270C2, 275C3
Warroad................................... 223C1
Waseca.................................... 221C3
Willmar................................... 237C2, 273C1
Windom.................................... 232A
Winona.................................... 237C3, 266C3
Worthington............................... 228A, 236C1
------------------------------------------------------------------------
Effective Date Note: At 65 FR 54176, Sept. 7, 2000, Minnesota was
amended by adding Channel 221A and Channel 283A at Blackduck and by
adding Kelliher, Channel 273A, effective Oct. 10, 2000.
Mississippi
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Aberdeen.................................. 287C2
Ackerman.................................. 300C
Amory..................................... 237A
Artesia................................... 261A, 260C2
Baldwyn................................... 223A
Batesville................................ 263C2
Bay St. Louis............................. 300C
Belzoni................................... 296C3
Biloxi.................................... 229C
Booneville................................ 257A
Brandon................................... 249A
Brookhaven................................ 221A
Brooksville............................... 255C3
Bruce..................................... 233A
Bude...................................... 282C3
Byhalia................................... 235A
Calhoun City.............................. 272A
Canton.................................... 269A
Carthage.................................. 252C3
Centreville............................... 285A
Charleston................................ 239A
Clarksdale................................ 221A, 243A, 268A, 293C2
Cleveland................................. 225C2, 252C3, 280C3
Clinton................................... 228A
Coldwater................................. 237A
Collins................................... 296A
Columbia.................................. 244A
Columbus.................................. 235C2, 276C2, 280C2
Como...................................... 278C
Corinth................................... 232C3, 237A
Crenshaw.................................. 295A
D'Iberville............................... 250C2
De Kalb................................... 289C2
Decatur................................... 277C3
Drew...................................... 237A
Durant.................................... 266A
Ellisville................................ 273C2
Eupora.................................... 241C2
Fayette................................... 249A
Flora..................................... 247C3
Forest.................................... 223C
Friars Point.............................. 254A
Fulton.................................... 270C2
Gluckstadt................................ 269C2
Greenville................................ 250C2, 264C1, 284C2
Greenwood................................. 230C3, 256C, 282C2
Grenada................................... 222A, 261C2, 267A
Gulfport.................................. 244A, 272C3, 296A
Hattiesburg............................... 221A, 226A, 279C, 283C1
Hazlehurst................................ 225A
Heidelberg................................ 257C2
Holly Springs............................. 224A
Houston................................... 227C
Indianola................................. 245C2, 288A
Iuka...................................... 285C2
Jackson................................... 234C, 238C, 242C, 259C, 275C
Kosciusko................................. 286C1
Laurel.................................... 251A, 262C
Leland.................................... 232C2, 272A
Lexington................................. 273C3
Liberty................................... 299C3
Long Beach................................ 233A
Louisville................................ 296C3
Lucedale.................................. 295A
Lumberton................................. 237C1
Macon..................................... 263A
Magee..................................... 298C
Marion.................................... 236C2
McComb.................................... 289C1
McLain.................................... 245A
Meridian.................................. 246C, 267C1, 271A
Monticello................................ 271C2
[[Page 97]]
Moss Point................................ 285C2
Mound Bayou............................... 271A
Natchez................................... 236C, 247A
New Albany................................ 268A, 294C2
New Augusta............................... 269A
Newton.................................... 250A
Ocean Springs............................. 223A, 276C2
Olive Brance.............................. 239A
Oxford.................................... 229C3, 238A, 248C1, 286A
Pascagoula................................ 256C1, 290C3
Pearl..................................... 230C3
Petal..................................... 292C3
Philadelphia.............................. 272A
Picayune.................................. 291C2
Pickens................................... 290C2
Pontotoc.................................. 244A
Port Gibson............................... 263A
Potts Camp................................ 240A
Prentiss.................................. 252A
Quitman................................... 255C3
Redwood................................... 288A
Richtown.................................. 243A
Ripley.................................... 272A
Rosedale.................................. 298C3
Saltillo.................................. 275C3
Sandersville.............................. 232C2
Sardis.................................... 271A
Starkville................................ 221A, 291C2
State College............................. 283C3
Stonewall................................. 295A
Sumrall................................... 247A
Taylorsville.............................. 240C2
Tchula.................................... 292C3
Tunica.................................... 241C3
Tupelo.................................... 253C1
Tylertown................................. 249A, 297A
Union..................................... 281C2
University................................ 221A
Utica..................................... 265C2
Vicksburg................................. 254C1, 267C3, 294C
Water Valley.............................. 288A
Waynesboro................................ 288A
West Point................................ 265A
Winona.................................... 236C3
Yazoo City................................ 221C3, 226A
------------------------------------------------------------------------
Missouri
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Arcadia................................... 280A
Ash Grove................................. 281C3
Asbury.................................... 278C3
Ashland................................... 791C1
Aurora.................................... 263C2
Ava....................................... 221A
Bethany................................... 238C2
Birch Tree................................ 296C3
Bismarck.................................. 258C3
Bonne Terre............................... 282A
Boonville................................. 226A, 257C2
Bowling Green............................. 231C3
Bourbon................................... 231A
Branson................................... 292C2
Brookfield................................ 245C2
Brookline................................. 271A
Buffalo................................... 260C3
Bunker.................................... 292A
Butler.................................... 221A
Cabool.................................... 251A
California................................ 232C2
Cameron................................... 261C2
Campbell.................................. 298C3
Canton.................................... 265C2
Cape Girardeau............................ 264C, 275B
Carrollton................................ 264C1
Carthage.................................. 236C2
Caruthersville............................ 286A
Centralia................................. 221A
Chaffee................................... 284C3
Channel................................... 223A
Charleston................................ 291C2
Chillicothe............................... 280C3
Clayton................................... 256C
Clinton................................... 237C3, 241C
Columbia.................................. 244C1, 252C2, 268C1, 272A
Crestwood................................. 234C
Cuba...................................... 271A, 297C3
De Soto................................... 261A
Deerfield................................. 264C3
Dexter.................................... 272C2
Dixon..................................... 221A
Doniphan.................................. 248C2
Doolittle................................. 283A
East Prairie.............................. 287A
Eldon..................................... 224C2, 270A
Eldorado Springs.......................... 288A
Ellington................................. 294A
Farmington................................ 253C
Fayette................................... 230C3
Florissant................................ 246C1
Fulton.................................... 263A
Gainesville............................... 259C2
Gallatin.................................. 269C3
Garden City............................... 287A
Gideon.................................... 280A
Gordonville............................... 257A
Halfway................................... 256C3
Hannibal.................................. 225C1
Harrisonville............................. 264C1
Houston................................... 257C2
Huntsville................................ 278C2
Ironton................................... 240C3
Jefferson City............................ 261C2, 281A, 295C
Joplin.................................... 223C1, 273C1
Kansas City............................... 227C, 235C, 243C, 259C,
271C, 277C, 282C
Kennett................................... 282A
Kimberling City........................... 261C2
Kirksville................................ 229C2, 233C1, 299C2, 300C1
Knob Noster............................... 289C2
Lake Ozark................................ 274A
Lamar..................................... 260A
La Monte.................................. 246C3
Lebanon................................... 279C, 300C2
Lexington................................. 297C
Liberty................................... 293C1
Linn...................................... 276A
Louisiana................................. 269A, 271C3
Lutesville................................ 281A
Macon..................................... 260C3
Malden.................................... 225C2
Malta Bend................................ 248C3
Mansfield................................. 240A
Marble Hill............................... 247A
Marshall.................................. 275C1
Marshfield................................ 284C2
Maryville................................. 246C3
Memphis................................... 263C3
Mexico.................................... 239C
Miner..................................... 296A
Moberly................................... 247C3, 284C, 288C2
Monett.................................... 240A
[[Page 98]]
Monroe City............................... 298A
Montgomery City........................... 280A
Mount Vernon.............................. 294C3
Mountain Grove............................ 223A
Mountain View............................. 245C2
Naylor.................................... 260A
Neosho.................................... 259C3
Nevada.................................... 249A
New London................................ 290C3
New Madrid................................ 293C2
Nixa...................................... 290C2
Osage Beach............................... 228C2
Osceola................................... 262A
Otterville................................ 299A
Owensville................................ 237C2
Ozark..................................... 225C2
Palmyra................................... 250C2
Perryville................................ 266A
Piedmont.................................. 285C3
Pleasant Hope............................. 238C2
Poplar Bluff.............................. 223A, 233C, 238C1, 244A,
278C2
Potosi.................................... 249C3
Ravenwood................................. 291A
Republic.................................. 258A
Richmond.................................. 223A
Rolla..................................... 248A, 287C1
Saint Robert.............................. 255A
Salem..................................... 225C3
Savannah.................................. 224C2
Scott City................................ 230C3
Sedalia................................... 222A
Seligman.................................. 227C1
Shell Knob................................ 249A
Sikeston.................................. 250C2
Southwest City............................ 262A
Sparta.................................... 243C2
Springfield............................... 234C, 247C1, 254C1, 267C
St. Genevieve............................. 289C
St. James................................. 259C3
St. Joseph................................ 286C1
St. Louis................................. 222C, 229C1, 242C1, 251C1,
273C, 277C1, 299C
Steelville................................ 227C2
Stockton.................................. 299A
Sullivan.................................. 265A
Tarkio.................................... 228C3
Thayer.................................... 222C2
Trenton................................... 222C3
Troy...................................... 264A
Union..................................... 269A
Vandalia.................................. 282A
Versailles................................ 236C3
Warrenton................................. 260C3
Warsaw.................................... 249A, 253A
Washington................................ 283A
Waynesville............................... 249A, 250A, 272A
Webb City................................. 250A
West Plains............................... 230C1, 273C2
Wheatland................................. 226A
Wheeling.................................. 290A
Willard................................... 286C2
Willow Springs............................ 262C2
------------------------------------------------------------------------
Effective Date Notes: 1. At 65 FR 53639, Sept. 5, 2000, Missouri was
amended by removing Channel 222A and adding Channel 262A at Osceola, by
removing Channel 221A and adding Channel 222A at Sedalia and by adding
Wheatland, Channel 226A, effective Oct. 2, 2000.
2. At 65 FR 57745, Sept. 26, 2000, corrected at 65 FR 60379, Oct.
11, 2000, Missouri was amended by adding Ravenwood, Channel 291A,
effective Oct. 30, 2000.
Montana
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alberton.................................. 288C2
Anaconda.................................. 249C3
Baker..................................... 263C1
Belgrade.................................. 244C2, 256A
Belt...................................... 269A
Big Sky................................... 242A, 283C1
Billings.................................. 227C1, 231C1, 242C1, 246C2,
253C1, 275C1, 279C1, 286A,
298C
Boulder................................... 299A
Bozeman................................... 229C1, 236C1, *240C3, 260C1,
*271C2, 278C1
Butte..................................... 223C1, 231C, 238C, *295A
Cascade................................... 285C
Chinook................................... 267C1
Choteau................................... 271C1
Colstrip.................................. 258A
Columbia Falls............................ 240C
Conrad.................................... 229C1
Cut Bank.................................. 274C1
Deer Lodge................................ 245C1
Dillon.................................... 252C3
Drummund.................................. 268C
Dutton.................................... 250C
East Helena............................... 281C1
Ennis..................................... 254C2
Eureka.................................... 228C3
Fairfield................................. 279C2
Florence.................................. 278A
Forsyth................................... 267C
Fort Benton, 239C3........................
Glasgow................................... 228A
Glendive.................................. 243C1
Great Falls............................... 225C1, 233C1, 255C1, 262C,
291C1, 297C
Hamilton.................................. 242C, 254C1
Hardin.................................... 238C
Havre..................................... 223C, 236C
Helena.................................... 258C1, 266C, *276C, 287C
Joliet.................................... 292C3
Kalispell................................. 246C, 253C, 280C1, 292C
Lewistown................................. 240A
Laurel.................................... 269C1
Libby..................................... 269A
Livingston................................ 248C1, 264C
Lockwood.................................. 294A
Malta..................................... 261A
Manhattan................................. 289A
Miles City................................ 223C
Missoula.................................. 227C, 235C, 261C1, 273C1,
290A
Outlook................................... 289C
Plentywood................................ 261A
Red Lodge................................. 257C1
Ronan..................................... 222C
Saint Regis............................... 256C2
Scobey.................................... 239C1
Shelby.................................... 244C1
Sidney.................................... 226C1, 236C1
Stevensville.............................. 283A
Superior.................................. 298A
Valier.................................... 289C1
Victor.................................... 250C3
West Yellowstone.......................... 225C
Whitefish................................. 286A
Whitehall................................. 274A
Wolf Point................................ 224A
------------------------------------------------------------------------
[[Page 99]]
Nebraska
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Ainsworth................................. 224A
Albion.................................... 224C2
Allen..................................... 265A
Alliance.................................. 271C1, 290C1
Auburn.................................... 288A
Aurora.................................... 247C1
Beatrice.................................. 225C1
Bennington................................ 227C3
Blair..................................... 247C3, 268C3
Bridgeport................................ 267C
Broken Bow................................ 252A
Central City.............................. 262C
Chadron................................... 234C1, 248C1
Columbus.................................. 228C1, 266C1
Cozad..................................... 283C1
Crete..................................... 280A
Crookston................................. 241C1
Fairbury.................................. 258C1
Falls City................................ 267A
Fremont................................... 288A
Gering.................................... 239C3
Gordon.................................... 238C2
Grand Island.............................. 239C1, 243C1, 299C1
Hastings.................................. 233C2, 268C
Hershey................................... 297C1
Holdrege.................................. 249C1
Humboldt.................................. 244A
Imperial.................................. 275C
Kearney................................... 255C1, 275C1, 290C
Kimball................................... 261A
Lexington................................. 226C1
Lincoln................................... 236C2, 270C, 274C1, 287A,
292C2, 297C1
McCook.................................... 230C2, 241C, 253C2, 287C1
Milford................................... 251C
Minatare.................................. 295A
Mitchell.................................. 257A
Nebraska City............................. 249C1
Norfolk................................... 234C1, 294C
North Platte.............................. 235C, 246C1, 278C1
O'Neil.................................... 275C1
Ogallala.................................. 259C1, 293C1
Omaha..................................... 222C, 231C, 241C, 260C,
264C, 283C, 290C2
Orchard................................... 287C1
Ord....................................... 280C3
Overton................................... 257C2
Paxton.................................... 228C1
Plattsmouth............................... 295C3
Ravenna................................... 276C2
Sargent................................... 221C1
Scottsbluff............................... 225C, 231C1
Seward.................................... 245C1
Sidney.................................... 254C1
South Sioux City.......................... 296A
Superior.................................. 280A
Sutherland................................ 264C1
Terrytown................................. 245C1
Wayne..................................... 285A
West Point................................ 300C2
Winnebago................................. 289C2
York...................................... 285C2
------------------------------------------------------------------------
Nevada
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Amargosa Valley........................... 266A
Battle Mountain........................... 253A
Beatty.................................... 262A
Boulder City.............................. 274C
Caliente.................................. 233C1
Cal-Nev-Ari............................... 285A
Carlin.................................... 244C
Carson City............................... 247C, 251C
Elko...................................... 229C2, 233C3, 237C1, 248C1
Ely....................................... 224C3, 269C3
Fallon.................................... 257A, 267C2, 281C
Gardnerville-Minden....................... 256A
Hawthorne................................. 228A
Henderson................................. 231C, 238C, 263C
Incline Village........................... 261C2
Indian Springs............................ 257C
Las Vegas................................. 222C, 226C, 242C, 246C,
253C, 270C, 278C, 286C2,
293C
Laughlin.................................. 228C1
Lovelock.................................. 292C1
Mesquite.................................. 244C, 248C1
Moapa Valley.............................. 284A
North Las Vegas........................... 282C
Overton................................... 295C1
Pahrump................................... 236A, 298C
Pioche.................................... 255A
Reno...................................... 225C, 238C, 271C3, 283C,
289C, 295C
Smith..................................... 222C3
Sparks.................................... 221A, 265A
Sun Valley................................ 229A, 233C3
Tonopah................................... 224A
Wells..................................... 280C1
Wendover.................................. 272C
Winnemucca................................ 224C3
------------------------------------------------------------------------
Effective Date Note: At 65 FR 56799, Sept. 20, 2000, Nevada was
amended by adding Channel 281C at Fallon, effective Oct. 23, 2000.
New Hampshire
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Bedford................................... 243A
Belmont................................... 227A
Berlin.................................... 279C
Campton................................... 289A
Claremont................................. 291B
Concord................................... 272A, 288A
Conway.................................... 228A, 283A
Dover..................................... 248B
Exeter.................................... 296A
Farmington................................ 293A
Franklin.................................. 231A
Gorham.................................... 296A
Groveton.................................. 229A
Hampton................................... 271A
Hanover................................... 222A, 257A
Haverhill................................. 267A
Henniker.................................. 256A
Hillsboro................................. 299A
Hinsdale.................................. 285A
Jackson................................... 258A
Jefferson................................. 247A
Keene..................................... 279B
Laconia................................... 252A
Lancaster................................. 272C3
Lebanon................................... 263C3
Lisbon.................................... 244A
Littleton................................. 292A
Manchester................................ 239B, 266B
Meredith.................................. 268A
Moultonborough............................ 295A
[[Page 100]]
Mount Washington.......................... 235C
Nashua.................................... 292A
Newport................................... 269A
New London................................ 259A
North Conway.............................. 279C
Peterborough.............................. 221A
Plymouth.................................. 261A
Portsmouth................................ 262B
Rochester................................. 244A
Somersworth............................... 254A
Stratford................................. 254A
Walpole................................... 242A
Whitefield................................ 256A
Winchester................................ 254A
Wolfeboro................................. 285A
------------------------------------------------------------------------
New Jersey
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Asbury Park............................... 232A
Atlantic City............................. 236B, 245B, 279B, 297B1
Avalon.................................... 232A
Belvidere................................. 296A
Blairstown................................ 292A
Bridgeton................................. 299B
Camden.................................... 295B
Canton.................................... 269A
Cape May.................................. 272A
Cape May Court House...................... 288A
Dover..................................... 288A
Eatontown................................. 292A
Egg Harbor................................ 285B1
Franklin.................................. 272A
Long Branch............................... 296A
Manahawkin................................ 261A, 289B1
Margate City.............................. 241A
Millville................................. 247B
New Brunswick............................. 252A
Newark.................................... 234B, 262B, 290B1
Newton.................................... 279B1
North Cape May............................ 294A
Ocean Acres............................... 253A
Ocean City................................ 252A, 292A
Paterson.................................. 226B
Peterson.................................. 274A
Pleasantville............................. 257A
Point Pleasant............................ 240A
Princeton................................. 277B
Toms River................................ 224A
Trenton................................... 233B, 248B, 268B
Tuckerton................................. 259A
Villas.................................... 254A
Vineland.................................. 221A
Wildwood.................................. 264B
Wildwood Crest............................ 226A
Zarephath................................. 256B
------------------------------------------------------------------------
New Mexico
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alamogordo................................ 232C3, 279A, 287C3, 300A
Albuquerque............................... 222C, 227C, 231C, 242C,
258C, 262C, 267A, 277C,
300C
Angel Fire................................ 260C2
Armijo.................................... 296C2
Artesia................................... 225C
Aztec..................................... 235C1
Bayard.................................... 275C1
Belen..................................... 249C1
Bloomfield................................ 283C
Bosque Farms.............................. 284C
Carlsbad.................................. 221A, 281C1, 291C2
Chama..................................... 240A
Clayton................................... 228A
Cloudcroft................................ 244C, 250C1
Clovis.................................... 256C1, 260C1, 268C1, 272C3,
298C1
Corrales.................................. 236C1
Deming.................................... 232A
Dexter.................................... 241C3
Espanola.................................. 225C2
Eunice.................................... 265A
Farmington................................ 225C1, 239C1, 245C, 271C
Gallup.................................... 229C, 233C, 256C, 268C1,
291C1
Grants.................................... 224C2, 264C2, 279C, 288C
Hatch..................................... 266C
Hobbs..................................... 231C1, 239C3, 243A, 275C1
Hurley.................................... 288C1
Jal....................................... 279C1
Kirtland.................................. 275C
La Luz.................................... 224A
Las Cruces................................ 258C, 276A, 280A
Las Vegas................................. 224A, 244A, 251C, 264C3,
275C2
Lordsburg................................. 250C, 279C3
Los Alamos................................ 253C, 294C1, 298C1
Los Lunas................................. 273C, 292C1
Lovington................................. 269C3
Magdalena................................. 240C2
Maljamar.................................. *254C1, 286C
Mesilla Park.............................. 285A
Pecos..................................... 268C3
Portales.................................. 237A
Questa.................................... 279C1
Raton..................................... 229C2, 243A, 249A
Reserve................................... 283C3
Rio Rancho................................ 269A
Roswell................................... 235C, 246C1, *258A, 263C1,
284C2, 293C1
Ruidoso................................... 228C3, 268A
Santa Clara............................... 237C1
Santa Fe.................................. 234C1, 238C1, 247C, 281C,
286C, 290C
Santa Rosa................................ 240A
Shiprock.................................. 265C1
Silver City............................... 225C2
Socorro................................... 225A, 271C2
Taos...................................... 240A, 256C, 270C1
Tatum..................................... 296C
Texico.................................... 243A
Thoreau................................... 260C
Truth or Consequences..................... 254C
Tucumcari................................. 224A
Tularosa.................................. 274C3
White Rock................................ 266C3
------------------------------------------------------------------------
Effective Date Note: At 65 FR 56800, Sept. 20, 2000, New Mexico was
amended by adding Channel 224A at Las Vegas, effective Oct. 23, 2000.
New York
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Albany.................................... 238B, 265A, 276A, 293B, 299B
Albion.................................... 271A
Alfred.................................... 270A
[[Page 101]]
Altamont.................................. 285A
Amherst................................... 221A
Amsterdam................................. 249A
Arlington................................. 245A
Attica.................................... 269A
Auburn.................................... 295B
Avon...................................... 227A
Babylon................................... 272A
Baldwinsville............................. 221B1
Ballston Spa.............................. 272A
Bath...................................... 252A, 276A
Bay Shore................................. 276A
Big Flats................................. 249A
Binghamton................................ 251B, 256B
Boonville................................. 267A
Briarcliff Manor.......................... 296A
Bridgehampton............................. 273A
Bridgeport................................ 258A
Brighton.................................. 231A
Brockport................................. 288A
Buffalo................................... 225B, 233B, 241B, 245B,
258B, 273B, 277B, 281B,
293B
Calverton-Roanoke......................... 287A
Canajoharie............................... 227A
Canandaigua............................... 272A
Canaseraga................................ 246A
Canton.................................... 268C2, 275C3
Cape Vincent.............................. 234A, 274A
Carthage.................................. 276A
Catskill.................................. 253A
Center Moriches........................... 241A
Chateaugay................................ 234C2
Chenango Bridge........................... 281A
Cherry Valley............................. 270B
Clifton Park.............................. 244A
Clyde..................................... 229A
Cobleskill................................ 278B
Conklin................................... 263A
Copenhagen................................ 294C3
Corinth................................... 228A
Corning................................... 254A, 291B
Cortland.................................. 260B
Dannemora................................. 250A
Dansville................................. 230A
Delhi..................................... 248A, 262A
Depew..................................... 229B
Deposit................................... 234A
Deruyter.................................. 286B
Dundee.................................... 240A
East Hampton.............................. 244A
Ellenville................................ 257A
Elmira.................................... 224A, 232A
Endicott.................................. 289B
Endwell................................... 298A
Essex..................................... 267A
Port Plain................................ 266A
Frankfort................................. 235B
Fredonia.................................. 243A
Fulton.................................... 284B
Garden City............................... 224A
Geneva.................................... 269A
Glens Falls............................... 240A
Gouverneur................................ 237A
Grand Gorge............................... 287A
Hammondsport.............................. 252A
Hampton Bays.............................. 296A
Hempstead................................. 252A
Henderson................................. 264A
Herkimer.................................. 224A
Highland.................................. 297A
Homer..................................... 268A
Honeoye Falls............................. 236B
Hoosick Falls............................. 248A
Hornell................................... 221A, 287B
Horseheads................................ 265A
Hudson.................................... 228A
Hudson Falls.............................. 269A, 296A
Hyde Park................................. 249A
Irondequoit............................... 294A
Ithaca.................................... 228A, 247B, 279B
Jamestown................................. 227B, 270A
Jeffersonville............................ 271A, 291A
Johnson City.............................. 269A
Kingston.................................. 232A
Lake George............................... 256A
Lake Luzerne.............................. 234A
Lake Placid............................... 288A
Lake Success.............................. 278B
Lakewood.................................. 295B1
Liberty................................... 240A
Little Falls.............................. 288A
Livingston Manor.......................... 296A
Lowville.................................. 257A
Malone.................................... 243C3
Manlius................................... 237A
Mechanicville............................. 283A
Mexico.................................... 280A
Middletown................................ 224A
Minerva................................... 264A
Minetto................................... 293A
Montauk................................... 235A, 284A
Monticello................................ 252A, 259A
Montour Falls............................. 285A
Morristown................................ 244C3
Mount Kisco............................... 292A
Narrowsburg............................... 275A
New Paltz................................. 277A
New Rochelle.............................. 228A
New York.................................. 222B, 230B, 238B, 242B,
246B, 250B, 254B, 258B,
266B, 270B, 274B, 282B,
286B, 294B, 298B
Newburgh.................................. 276A
Newport Village........................... 259A
Niagara Falls............................. 253B
North Syracuse............................ 265A
Norwich................................... 237A, 230B
Norwood................................... 241A
Ogdensburg................................ 224A, 254A
Old Forge................................. 223A, 231A
Olean..................................... 239B, 268A
Oneonta................................... 276A, 280A
Oneida.................................... 292A
Oswego.................................... 244A, 288A
Owego..................................... 269A
Palmyra................................... 259A
Patchogue................................. 248B, 291B
Patterson................................. 288A
Peekskill................................. 264B
Phoenix................................... 271A
Plattsburgh............................... 260C, 286C3
Port Henry................................ 221C3
Port Jervis............................... 244A
Potsdam................................... 257A
Poughkeepsie.............................. 221A, 241A, 268B, 284B
Pulaski................................... 269A
Queensbury................................ 289B1
Ravena.................................... 233A
Remsen.................................... 228A
Rensselaer................................ 280A
Riverhead................................. 280A
Rochester................................. 223B, 243B, 250B, 255B,
263B, 267B, 280A, 290A
Rome...................................... 240A, 273B
Rosendale................................. 273A
[[Page 102]]
Rotterdam................................. 252A
Sag Harbor................................ 221A
Salamanca................................. 252A
Saranac Lake.............................. 227A, 292C3, 296A
Saugerties................................ 225A
Schenectady............................... 258B
Seneca Falls.............................. 257A
Sidney.................................... 265A
Smithtown................................. 232A
Sodus..................................... 278A
South Bristol Twsp........................ 297A
Southampton............................... 225A, 237A
Southhold................................. 269A
Southport................................. 258A
Speculator................................ 243A
Star Lake................................. 290B1
Stillwater................................ 267A
Sylvan Beach.............................. 262A
Syracuse.................................. 226B, 233B, 275B, 290A, 300B
Ticonderoga............................... 280A
Troy...................................... 222B
Tupper Lake............................... 272A
Utica..................................... 245B, 254B, 264A, 282B, 297B
Vestal.................................... 277B1
Walton.................................... 221A
Warrensburg............................... 262B1
Waterloo.................................. 253A
Watertown................................. 228A, 248C1
Waverly................................... 271A
Webster................................... 274A
Wellsville................................ 228A, 278A
Westhampton............................... 253A
Westport.................................. 275A
Wethersfield Townsh....................... 299B
White Plains.............................. 280A
Whitehall................................. 231A
Whitesboro................................ 250A
Willsboro................................. 244A
Windham................................... 250A
Windsor................................... 294A
Woodstock................................. 261A
Wurtsboro................................. 247A
------------------------------------------------------------------------
North Carolina
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Ahoskie................................... 257A
Albemarle................................. 265A
Asheboro.................................. 222C
Ashville.................................. 260C
Atlantic.................................. 297C3
Aurora.................................... 283A
Banner Elk................................ 264A
Bayboro................................... 250C3
Beech Mountain............................ 272A
Belhaven.................................. 266C2
Biltmore Forest........................... 243A
Black Mountain............................ 295C
Burgaw.................................... 260C1
Burlington................................ 230C, 266C
Buxton.................................... 260A, 268A
Calabash.................................. 285C3
Carolina Beach............................ 294A
Charlotte................................. 236C, 279C, 284C, 300C
Clinton................................... 297C3
Columbia.................................. 273C1, 289C1
Concord................................... 250C
Dunn...................................... 278C2
Durham.................................... 286C, 296A
Eden...................................... 233C1
Edenton................................... 261C2
Elizabeth City............................ 244A
Elizabethtown............................. 289A
Elkin..................................... 265A
Enfield................................... 297A
Fairbluff................................. 287A
Fairmont.................................. 265C2
Farmville................................. 232A
Fayetteville.............................. 251C1
Forest City............................... 227C
Franklin.................................. 244A
Fuquay-Varina............................. 280C3
Gaston.................................... 250A
Gastonia.................................. 270C
Goldsboro................................. 245C, 272A
Greensboro................................ 246C, 254C
Greenville................................ 300C
Grifton................................... 258C2
Hamlet.................................... 282A
Harkers Island............................ 262C1
Harrisburg................................ 224A
Hatteras.................................. 233C1, 246C1
Havelock.................................. 286C3
Henderson................................. 223C
Hendersonville............................ 273C1
Hertford.................................. 285C2
Hickory................................... 239C, 275C1
Highlands................................. 283A
High Point................................ 238C1, 258C, 262C
Hope Mills................................ 283A
Jacksonville.............................. 222C2, 254C1, 288C2
Jefferson................................. 291C3
Iniannapolis.............................. 259C
Kill Devil Hills.......................... 281C1
Kinston................................... 236C, 249A, 275A
Laurinburg................................ 243C
Leland.................................... 231A
Lenoir.................................... 277A
Lexington................................. 231C
Long Beach................................ 252C3
Louisburg................................. 273A
Lumberton................................. 239C, 272A
Manteo.................................... 252A, 256C2
Morehead City............................. 242C1
Morganton................................. 221A
Moyock.................................... 221C3
Murfreesboro.............................. 252A
Murphy.................................... 274A
Nags Head................................. 222C3
Nashville................................. 259A
New Bern.................................. 270C1, 293C1
Newport................................... 277C1
Norlina................................... 232A
North Wilkesboro.......................... 247C
Ocean Isle Beach.......................... 228A
Ocracoke.................................. 224C1
Old Fort.................................. 282A
Oriental.................................. 231C3
Pinetops.................................. 238C3
Plymouth.................................. 240A
Raleigh................................... 234C, 241C, 268C, 275A
Reidsville................................ 271C
Roanoke Rapids............................ 272A
Robbins................................... 276A
Robbinsville.............................. 240A
Rocky Mount............................... 221A, 253C3, 264C
Rose Hill................................. 284A
Roxboro................................... 244A
St. Pauls................................. 297A, 299A
Salisbury................................. 293C1
Sanford................................... 288A
Semora.................................... 294C2
[[Page 103]]
Shallottee................................ 279C3, 292A
Shelby.................................... 241C
Southern Pines............................ 273A, 295C2
Southern Shores........................... 265C2
Southport................................. 298C2
Statesville............................... 245C, 289C
Tarboro................................... 282C1
Thomasville............................... 252A
Topsail Beach............................. 280C3
Wadesboro................................. 228C3
Wallace................................... 232A
Wanchese.................................. 237C3
Washington................................ 227C, 252A
Waxhaw.................................... 291C3
Waynesville............................... 285A
Whiteville................................ 256C1
Williamston............................... 279C1
Wilmington................................ 247C1, 267C2, 274C1, 283A
Wilson.................................... 291C
Windsor................................... 249A, 255A
Winston-Salem............................. 226C, 281C, 298C
Wrightsville Beach........................ 229A
------------------------------------------------------------------------
North Dakota
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Arthur.................................... 244A
Belfield.................................. 230C1
Berthold.................................. 264C
Beulah.................................... 250A
Bismarck.................................. 225C, 233C, 243C, 248C,
254C, 268C
Bottineau................................. 270C1
Burlington................................ 276C1
Cannon Ball............................... 298C
Carrington................................ 252A
Cavalier.................................. 286C1
Devils Lake............................... 244C2, 273C1, 278C1
Dickinson................................. 221C3, 256C1
Fargo..................................... 229C, 250C, 270C1, 300C1
Flasher................................... 290C
Gackle.................................... 256C
Grafton................................... 265C3
Grand Forks............................... 225C1, 234C1, 298C1
Harwood................................... 264C3
Hazelton.................................. 280C
Hettinger................................. 228A
Hope...................................... 284A
Jamestown................................. 227C1, 238C1
Kindred................................... 224C3
Langdon................................... 239A
Lisbon.................................... 291C2
Mandan.................................... 284C1
Mayville.................................. 288C3
Medina.................................... 222C
Minot..................................... 229C1, 246C, 260C1, 287C1,
295C2
New England............................... 239C
Richardton................................ 270C
Rugby..................................... 237A
Sarles.................................... 290C
Tioga..................................... 281C1
Valley City............................... 266C2
Velva..................................... 235C1
Wahpeton.................................. 295C2
Walhalla.................................. 294C2
Williston................................. 241C1, 253C1, 266C1
Wimbledon................................. 276C1
Wishek.................................... 262C1
------------------------------------------------------------------------
Ohio
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Ada....................................... 235A
Akron..................................... 243B, 248B
Alliance.................................. 223B
Archbold.................................. 241A
Ashland................................... 267B
Ashtabula................................. 246B, 252A
Athens.................................... 240A, 288A
Barnesville............................... 228A
Beavercreek............................... 280A
Bellaire.................................. 263A
Bellefontaine............................. 252A
Bellevue.................................. 221A
Belpre.................................... 296A
Bowling Green............................. 228A
Bryan..................................... 265A
Bucyrus................................... 224A
Byesville................................. 249A
Cadiz..................................... 292A
Caldwell.................................. 285A
Cambridge................................. 244A
Canton.................................... 231B, 251B, 295B
Castalia.................................. 249A
Celina.................................... 232A, 244A
Chillicothe............................... 227B, 232B1
Cincinnati................................ 223B, 227B, 231B, 253B,
270B, 274B, 286B
Circleville............................... 296A
Cleveland................................. 226B, 238B, 253B, 258B,
264B, 271B, 277B, 281B,
289B, 293B 300B
Cleveland Heights......................... 222B
Clyde..................................... 265A
Coal Grove................................ 246A
Columbus.................................. 222B, 234B, 242B, 246B,
250B, 259B, 298A
Conneaut.................................. 288A
Coshocton................................. 257A
Crestline................................. 254A
Crooksville............................... 297A
Dayton.................................... 256B, 284B, 299B
Defiance.................................. 251B, 290A
Delaware.................................. 300A
Delphos................................... 296A
Delta..................................... 293A
Dover..................................... 269A
East Liverpool............................ 282B
Eaton..................................... 225B
Edgewood.................................. 273A
Elyria.................................... 297B
Englewood................................. 233A
Fairfield................................. 235B
Findlay................................... 263B
Fort Shawnee.............................. 298A
Fostoria.................................. 244A
Fredericktown............................. 252A
Fremont................................... 256B1
Gahanna................................... 285A
Galion.................................... 272A
Gallipolis................................ 268B
Geneva.................................... 284A
Georgetown................................ 249A
Gibsonburg................................ 239A
Greenfield................................ 248A
Greenville................................ 293B
Grove City................................ 266A
Hamilton.................................. 243B, 278B
Harrison.................................. 282A
Hicksville................................ 294A
Hilliard.................................. 289A
Hillsboro................................. 294B
Holland................................... 272A
Hubbard................................... 270A
[[Page 104]]
Huron..................................... 241A
Ironton................................... 296A
Jackson................................... 249A
Johnstown................................. 276A
Kent...................................... 261A
Kenton.................................... 237A
Kettering................................. 260B
Lancaster................................. 238B, 278A
Lebanon................................... 247A
Lima...................................... 226A, 249A, 271B, 285A
Logan..................................... 252A
London.................................... 292A
Lorain.................................... 285A
Loudonville............................... 299A
Manchester................................ 267A
Mansfield................................. 287B, 291B
Marietta.................................. 271B1
Marion.................................... 232A, 295B
McArthur.................................. 254A
McConnelsville............................ 265A
Medina.................................... 235B
Miamisburg................................ 229B
Middleport................................ 221A
Middletown................................ 290B
Milford................................... 296A
Millersburg............................... 237A
Montpelier................................ 283A
Mount Gilead.............................. 236
Mount Vernon.............................. 229B
Napoleon.................................. 276A
Nelsonville............................... 299A
New Lexington............................. 290A
New Philadelphia.......................... 240A
Newark.................................... 262B, 269A
Niles..................................... 291A
North Baltimore........................... 299A
North Kingsville.......................... 298A
North Madison............................. 229A
Norwalk................................... 237A
Oak Harbor................................ 247A
Ottawa.................................... 292A
Oxford.................................... 249A
Paulding.................................. 259A
Piketon................................... 261A
Piqua..................................... 239B
Pleasant City............................. 221A
Port Clinton.............................. 233B
Portsmouth................................ 257A, 281C, 298A
Richwood.................................. 282A
Ripley.................................... 258C3
St. Marys................................. 277A
Salem..................................... 286B
Sandusky.................................. 274B
Shadyside................................. 239B1
Shelby.................................... 261A
Sidney.................................... 288A
South Webster............................. 235A
South Zanesville.......................... 224B1
Springfield............................... 264B, 275B
Steubenville.............................. 278B
Swanton................................... 297A
Sylvania.................................. 288A
Tiffin.................................... 279B
Toledo.................................... 223B, 260B, 268B, 284B
Troy...................................... 245A
Uhrichsville.............................. 260A
Union City................................ 248A
Upper Arlington........................... 255A
Upper Sandusky............................ 240A
Urbana.................................... 269A
Van Wert.................................. 230A, 255B
Wapakoneta................................ 221A
Washington Courthouse..................... 288A
Wauseon................................... 245A
Waverly................................... 265A
Wellston.................................. 244B1
West Carrollton........................... 221A
West Union................................ 276A
Westerville............................... 280A
Willard................................... 245A
Wilmington................................ 272A
Wooster................................... 283B
Xenia..................................... 237A
Youngstown................................ 227B, 255B, 266B
Zanesville................................ 273B
------------------------------------------------------------------------
Oklahoma
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Ada....................................... 257A
Altus..................................... 228C2, 300C3
Alva...................................... 248C2, 259C1, 289C2, 296C3
Anadarko.................................. 278C
Antlers................................... 222C2, 272A
Ardmore................................... 239C1, 253A
Atoka..................................... 271A
Bartlesville.............................. 261C1
Bethany................................... 285A
Bixby..................................... 287C2
Blossom................................... 224C2
Bristow................................... 285A
Broken Arrow.............................. 221C2
Broken Bow................................ 291C2
Byng...................................... 261C2
Chelsea................................... 264A
Chickasha................................. 288A
Clinton................................... 238C2, 294C1
Coalgate.................................. 288C2
Collinsville.............................. 268C3
Comanche.................................. 287A
Cordell................................... 229A, 257C3
DeQueen................................... 227A
Dickson................................... 224A
Duncan.................................... 246A
Durant.................................... 248C2, 292A
Edmond.................................... 250A
Eldorado.................................. 245A
Elk City.................................. 232C3, 243C1, 253C
Enid...................................... 245C, 276C2
Eufaula................................... 273C3
Frederick................................. 240A
Granite................................... 282C3
Grove..................................... 257A
Guymon.................................... 224C3, 258C1
Healdton.................................. 249C3
Heavener.................................. 223A
Henryetta................................. 258C1
Hobart.................................... 290C
Holdenville............................... 293C3
Hollis.................................... 223A
Hugo...................................... 238C2
Idabel.................................... 244C3, 275A
Ketchum................................... 298C1
Kingfisher................................ 287A
Lahoma.................................... 239C3
Lawton.................................... 231C, 237C3, 251C1, 258C3,
267C1, 297C2
Lindsay................................... 286A
Locust Grove.............................. 233A
Lone Grove................................ 296C3
Mangum.................................... 249A
[[Page 105]]
Marlow.................................... 221C1
McAlester................................. 267C1, 286A
Miami..................................... 265A
Muskogee.................................. 246C, 295C
Newcastle................................. 227C1
Norman.................................... 292A
Nowata.................................... 285A
Okarche................................... 294C2
Oklahoma City............................. 223C, 234C, 241C, 255C,
263C, 270C, 274C, 281C,
299C
Okmulgee.................................. 231C1
Owosso.................................... 291C
Pawhuska.................................. 280A
Perry..................................... 286A
Ponca City................................ 257A, 265A, 284A
Poteau.................................... 250C, 297C
Pryor..................................... 283C1
Roland.................................... 222A
Sallisaw.................................. 240C2
Sand Springs.............................. 272C2
Sapulpa................................... 265A
Seminole.................................. 290A
Shawnee................................... 236C
Snyder.................................... 262A
Soper..................................... 243A
Spencer................................... 289A
Stillwater................................ 229C2, 251A, 288A
Sulphur................................... 291A
Taft...................................... 262A
Tahlequah................................. 269C3
Tishomingo................................ 259C3
Tulsa..................................... 225C, 238C, 243C, 248C,
253C, 277C
Vinita.................................... 240A, 241C2
Warner.................................... 271A
Watonga................................... 230A
Weatherford............................... 247C1, 286A
Wewoka.................................... 284A
Wilburton................................. 279C1
Woodward.................................. 221C3, 240A, 261C1, 266C,
272A
Wynnewood................................. 283A
------------------------------------------------------------------------
Oregon
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Albany.................................... 260C, 300C
Altamont.................................. 249C1, 267C1
Ashland................................... 270C, 298C2
Astoria................................... 225C1
Baker..................................... 237A, 284C
Bandon.................................... 243C3
Banks..................................... 298C1, 298C3
Bay City.................................. 242A
Beaverton................................. 277C
Bend...................................... 231C, 248C1, 252C3, 259C3,
264C1, 289C1
Bonanza................................... 275C3
Brookings................................. 237C2
Brownsville............................... 272C1
Burns..................................... 224A
Cannon Beach.............................. 235C3
Canyon City............................... 233C
Cave Junction............................. 274C
Condon.................................... 228A
Coos Bay.................................. 228A, 254C2, 290C2
Coquille.................................. 247C1
Corvallis................................. 268C1, 292C
Cottage Grove............................. 263A, 288A
Creswell.................................. 237C3
Dallas.................................... 252C3
Depoe Bay................................. 288A
Eagle Point............................... 292C3
Elgin..................................... 290A
Enterprise................................ 221A
Eugene.................................... 233C, 241C, 250C, 256C
Florence.................................. 284C, 295A
Gleneden Beach............................ 248C2
Gold Beach................................ 224C1
Gold Hill................................. 262C1
Grants Pass............................... 245C
Harbeck-Fruitdale......................... 252C2
Hermiston................................. 263A
Hood River................................ 288A
Keno...................................... 253A
Klamath Falls............................. 223C, 258C1, 284C1, 295C1
La Grande................................. 254C2, 260C1
Lake Oswego............................... 294C
Lakeview.................................. 228C2, 237C2
Lebanon................................... 279C
Lincoln City.............................. 236C2, 244C2
Malin..................................... 263A
Medford................................... 229C, 239C1, 278C1
Merrill................................... 289A
Milton-Freewater.......................... 250C2
Myrtle Point.............................. 231A
Newport................................... 224C2, 274C1
North Bend................................ 235C1, 297C1
Nyssa..................................... 254C1
Oakridge.................................. 221A
Ontario................................... 241C1
Pendleton................................. 279C1, 299C
Phoenix................................... 286C1
Portland.................................. 222C, 229C, 238C, 246C,
254C1, 258C1, 262C, 266C,
270C
Prineville................................ 236C1, 254C3
Ranier.................................... 252A
Redmond................................... 269C2, 275C1, 298C1
Reed City................................. 247A
Reedsport................................. 221A, 258C3
Rogue River............................... 234A
Roseburg.................................. 276A
Salem..................................... 286C
Scappoose................................. 281C3
Seaside................................... 251A, 272C3
Sisters................................... 281C1
Springfield-Eugene........................ 226C
Stanfield................................. 241C3
Sunriver.................................. 224C2
Sutherlin................................. 266C3
Sweet Home................................ 296C1
The Dalles................................ 224C3, 244C3, 249C2, *268C3,
283C
Tillamook................................. 231C3
Toledo.................................... 264C2
Tri-City.................................. 282C2
Vale...................................... 288C
Warm Springs.............................. 243C
Weiser.................................... 280C1
Weston.................................... 270C2
------------------------------------------------------------------------
Effective Date Note: At 65 FR 56800, Sept. 20, 2000, Oregon was
amended by adding Vale, Channel 288C and Weiser, Channel 280C1,
effective Oct. 23, 2000.
Pennsylvania
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Allentown................................. 264B, 281B
Altoona................................... 251B, 261B1
[[Page 106]]
Avis...................................... 260A
Barnesboro................................ 228A
Beaver Falls.............................. 294B
Beaver Springs............................ 291A
Bedford................................... 265A, 298A
Bellefonte................................ 237A
Bellwood.................................. 280A
Benton.................................... 240A
Berwick................................... 278A
Bethlehem................................. 236B
Blairsville............................... 292A
Bloomsburg................................ 293B
Boalsburg................................. 229A
Boyertown................................. 298B
Braddock.................................. 245B
Bradford.................................. 261A
Brookville................................ 277B1, 288B1
Burnham................................... 244A
Butler.................................... 249A
Cambridge Springs......................... 283A
Canton.................................... 262B1
Carbondale................................ 232A
Carlisle.................................. 272A
Central City.............................. 269A
Chambersburg.............................. 236B
Charleroi................................. 252A
Clarendon................................. 274A, 282A
Clarion................................... 224A
Clearfield................................ 226B1
Cooperstown............................... 299A
Coudersport............................... 244A
Covington................................. 268A
Cresson................................... 232A
Curwensville.............................. 275A
Dallas.................................... 229A
Danville.................................. 244A
Dubois.................................... 271B, 297B
Easton.................................... 241B, 260B
Ebensburg................................. 256B
Edinboro.................................. 250B1
Elizabethville............................ 263A
Ellwood City.............................. 221A
Emporium.................................. 257A
Ephrata................................... 286B
Erie...................................... 234A, 260B, 272A, 279B
Everett................................... 282A
Fairview.................................. 230A
Forest City............................... 261A
Franklin.................................. 257B1
Freeland.................................. 276A
Galeton................................... 264B1
Gettysburg................................ 299B
Greencastle............................... 232A
Greensburg................................ 296A
Greenville................................ 296A
Grove City................................ 236B
Harrisburg................................ 235B, 247B, 257A, 281B
Hawley.................................... 287A
Hazleton.................................. 250B
Hershey................................... 294B
Hollidaysburg............................. 285A
Honesdale................................. 237A
Huntingdon................................ 278A, 292A
Indiana................................... 223A
Jenkintown................................ 280A
Jersey Shore.............................. 242B1, 249A
Johnsonburg............................... 263A
Johnstown................................. 221A, 238B, 243B
Kane...................................... 280A
Lancaster................................. 233B, 245B, 267B
Laporte................................... 280A
Lebanon................................... 261A
Lewisburg................................. 279A
Lewistown................................. 239A, 288A
Liberty................................... 298A
Linesville................................ 269A
Lock Haven................................ 221A
Mansfield................................. 222A
Martinsburg............................... 224A
Masontown................................. 295A
McConnellsburg............................ 279A
Meadville................................. 262B
Mechanicsburg............................. 228A
Media..................................... 262B
Mercer.................................... 244A, 280A
Mercersburg............................... 221A
Mexico.................................... 223A
Meyersdale................................ 227A, 253A
Mifflinburg............................... 252A
Mifflintown............................... 296A
Mill Hall................................. 254A
Millersburg............................... 255A
Milton.................................... 265A
Montrose.................................. 243B
Mountaintop............................... 246A
Mount Carmel.............................. 259A
Mount Union............................... 258A
Muncy..................................... 227B1
Nanticoke................................. 221A
New Kensington............................ 264B
North East................................ 265B1
Northumberland............................ 297A
Oil City.................................. 242A, 253B1
Oliver.................................... 235B1
Olyphant.................................. 239A
Palmyra................................... 221A
Patton.................................... 234A
Philadelphia.............................. 223B, 227B, 231B, 239B,
243B, 251B, 255B, 266B,
271B, 275B, 283B, 287B,
291B
Philipsburg............................... 290A
Pittsburgh................................ 225B, 229B, 233B, 241B,
259B, 268B, 273B, 284B,
290B, 300B
Pittston.................................. 272A
Pocono Pines.............................. 290A
Port Allegany............................. 235A
Port Matilda.............................. 300A
Portage................................... 289A
Pottsville................................ 270B
Punxsutawney.............................. 281A
Reading................................... 273B
Red Lion.................................. 241B
Renovo.................................... 295A
Reynoldsville............................. 293A
Ridgebury................................. 245A
Riverside................................. 222A
Russell................................... 276A
Saegertown................................ 232A
Salladsburg............................... 238A
Scottdale................................. 280A
Scranton.................................. 258, 267B, 285A, 295A
Shamokin.................................. 237A
Sharon.................................... 275B
Sharpsville............................... 240A
Sheffield................................. 286A
Smethport................................. 292A
Somerset.................................. 249A
South Waverly............................. 241A
South Williamsport........................ 257A
Spangler.................................. 247A
St. Marys................................. 230B1, 248B
Starview.................................. 224A
State College............................. 233A, 276A
Stroudsburg............................... 228A
[[Page 107]]
Sunbury................................... 231B
Susquehanna............................... 223A
Tamaqua................................... 288A
Tioga..................................... 234B1
Tobyhanna................................. 300A
Towanda................................... 237A
Tunkhannock............................... 299A
Tyrone.................................... 266B
Union City................................ 292A
Uniontown................................. 257A
University Park........................... 246A
Warren.................................... 222B
Washington................................ 237A
Waynesboro................................ 268B
Waynesburg................................ 276A
Wellsboro................................. 283B
Whitneyville.............................. 296A
Wilkes-Barre.............................. 225B, 253B
Williamsport.............................. 274B, 286B, 300A
York...................................... 277B, 289B
York-Hanover.............................. 253B
------------------------------------------------------------------------
Effective Date Note: At 65 FR 55926, Sept. 15, 2000, Pennsylvania
was amended by adding Sheffield, Channel 286A, effective Oct. 16, 2000.
Rhode Island
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Block Island.............................. 257A
Middletown................................ 262A
Narragansett Pier......................... 274A
Providence................................ 222B, 231B, 238B, 268B, 286B
Wakefield-Peacedale....................... 259A
Westerly.................................. 279B
Woonsocket................................ 292A
------------------------------------------------------------------------
South Carolina
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Abbeville................................. 225A
Aiken..................................... 242C2, 258C2
Allendale................................. 228A
Anderson.................................. 266C, 297C
Andrews................................... 264A
Atlantic Beach............................ 262A
Bamberg................................... 239A
Barnwell.................................. 256C3
Batesburg................................. 226A
Beaufort.................................. 254C1
Bishopville............................... 229A
Blackville................................ 250A
Bluffton.................................. 295C1
Bowman.................................... 233A
Branchville............................... 286A
Briarcliffe Acres......................... 296C2
Bucksport................................. 300C2
Camden.................................... 274A
Cayce..................................... 244A
Charleston................................ 236C, 245C, 263C3, 278C1
Cheraw.................................... 277C2
Chester................................... 257C3
Chesterfield.............................. 297A
Clearwater................................ 252A
Clemson................................... 285A
Columbia.................................. 228A, 248C1, 276A, 284C
Conway.................................... 230A
Cross Hill................................ 231A
Darlington................................ 288C3
Dillon.................................... 225C
Due West.................................. 237A
Easley.................................... 280A
Elloree................................... 262A, 262C3
Florence.................................. 292A
Folly Beach............................... 251C2
Forest Acres.............................. 232A
Gaffney................................... 287C
Garden City............................... 249C1
Georgetown................................ 229A, 293C2
Goose Creek............................... 232C3
Gray Court................................ 263C
Greenville................................ 223C, 229C, 233C
Greenwood................................. 244A, 278C3
Greer..................................... 277A
Hampton................................... 221A
Hanahan................................... 241C1
Hardeeville............................... 266C2
Hartsville................................ 253A
Hilton Head Island........................ 291C2, 300C2
Honea Path................................ 276A
Johnsonville.............................. 286A
Johnston.................................. 224A
Kiawah Island............................. 288C2
Kingstree................................. 231A, 257C3
Ladson.................................... 292A
Lake City................................. 261A
Lancaster................................. 296A
Latta..................................... 232C3
Lexington................................. 253A
Loris..................................... 235A
Manning................................... 223C
Marion.................................... 263C3
McClellanville............................ 255C2
Mount Pleasant............................ 283C2
Mullens................................... ............................
Murrell's Inlet........................... 233A
Myrtle Beach.............................. 221C2, 269C2, 281C1
New Ellenton.............................. 274A
Newberry.................................. 292C3
North Charleston.......................... 273C
North Myrtle Beach........................ 290C3
Orangeburg................................ 275A, 280C3, 294C1
Pageland.................................. 272A
Pamplico.................................. 271C2
Parris Island............................. 276C3
Pawley's Island........................... 253A
Port Royal................................ 259C
Ravenel................................... 269C3
Ridgeland................................. 285C3
Ridgeville................................ 265C3
St. Andrews............................... 272A
St. George................................ 298C
St. Matthews.............................. 230A
St. Stephen............................... 291A
Saluda.................................... 221A
Scranton.................................. 275A
Seneca.................................... 251C
Socastee.................................. 258C3
South Congaree............................ 237A
Spartanburg............................... 255C
Summerton................................. 252A
Summerville............................... 227C2
Sumter.................................... 234A, 267C
Surfside Beach............................ 276C3
Walhalla.................................. 242A
Walterboro................................ 229A
Wedgefield................................ 238A
West Columbia............................. 261A
Williston................................. 234A
------------------------------------------------------------------------
[[Page 108]]
Effective Date Note: At 65 FR 55926, Sept. 15, 2000, South Carolina
was amended by adding Due West, Channel 237A, effective Oct. 16, 2000.
South Dakota
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Aberdeen.................................. 231C1, 235C, 294C1
Belle Fourche............................. 240C1, 271C3
Box Elder................................. 274A
Brandon................................... 261A
Brookings................................. 229C1
Canton.................................... 274C2
Clear Lake................................ 296C3
Custer.................................... 286C2
Deadwood.................................. 236C
Dell Rapids............................... 239C3
Faith..................................... 246C
Flandreau................................. 300C3
Gregory................................... 268C1
Hot Springs............................... 244C2
Huron..................................... 256A, 286A
Ipswich................................... 300A
Lead...................................... 232C
Lennox.................................... 256C3
Lowry..................................... 264C1
Madison................................... 276C2
Martin.................................... 273C1
Milbank................................... 282C1
Mission................................... 264A
Mitchell.................................. 290C1, 297C1
Mobridge.................................. 258C1
Murdo..................................... 285A
Newell.................................... 279C2
Pierre.................................... 224C1, 237C2
Pine Ridge................................ 228A
Presho.................................... 262A
Rapid City................................ 222C, 230C1, 250C1, 254C1,
262C1, 281C1, 292C
Redfield.................................. 249A, 279C1
Reliance.................................. 233C
Roscoe.................................... 287A
Salem..................................... 263C1
Sioux Falls............................... 223C, 233A, 243C, 247C1,
270C2, 279C2, 284C
Sisseton.................................. 258C2, 275C1
Spearfish................................. 266C, 297C
Sturgis................................... 226C
Vermillion................................ 292C2
Volga..................................... 272C3
Watertown................................. 225C1, 241C1, 245C
Wessington Springs........................ 227C1, 252C1
Winner.................................... 229C1
Yankton................................... 226C1, 281C1
------------------------------------------------------------------------
Tennessee
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alamo..................................... 226C3
Athens.................................... 269C3
Atwood.................................... 229A
Baxter.................................... 299C3
Belle Meade............................... 294A
Benton.................................... 226A
Bolivar................................... 244A
Bristol................................... 245C
Brownsville............................... 237A
Bulls Gap................................. 264A
Byrdstown................................. 244A
Calhoun................................... 281A
Camden.................................... 240A
Carthage.................................. 281A
Celina.................................... 268A
Centerville............................... 244A
Chattanooga............................... 222C, 243C, 293C
Cleveland................................. 237A, 264C
Clifton................................... 293A
Clinton................................... 237A
Coalmont.................................. 284A
Collinwood................................ 235C3
Colonial Heights.......................... 240C2
Columbia.................................. 269A
Cookeville................................ 234C, 253C2
Covington................................. 228A
Crossville................................ 257A, 273C3
Dayton.................................... 285A
Dickson................................... 273C1
Dresden................................... 236A
Dyer...................................... 232A
Dyersburg................................. 261C2
East Ridge................................ 300C3
Elizabethton.............................. 257C3
Erwin..................................... 280A
Etowah.................................... 276C2
Fayetteville.............................. 288A
Franklin.................................. 261A
Gallatin.................................. 283C1
Gatlinburg................................ 288A
Germantown................................ 231C2, 298C3
Goddlettsville............................ 246C2
Graysville................................ 239A
Greensville............................... 235C
Harriman.................................. 224A
Harrogate................................. 243A
Henderson................................. 239A, 299C3
Hendersonville............................ 221A
Humboldt.................................. 272A, 287A
Huntingdon................................ 265C3
Jackson................................... 268A, 276C2, 281C1
Jamestown................................. 280A, 286A
Jefferson City............................ 257A
Jellico................................... 274A
Johnson City.............................. 268C
Karns..................................... 226A
Kingsport................................. 253C, 285A
Kingston Springs.......................... 229A
Knoxville................................. 248C, 278C, 283A, 299C
Lafayette................................. 271A
La Follette............................... 285A
Lawrenceburg.............................. 240A, 248A
Lebanon................................... 255A, 298C
Lenoir City............................... 228A
Lewisburg................................. 232A
Lexington................................. 257A
Livingston................................ 240C2
Lobelville................................ 233C2
Loudon.................................... 256A, 287A
Madisonville.............................. 258A
Manchester................................ 259C
Martin.................................... 269A
Maryville................................. 239A
McKenzie.................................. 295C1
McKinnon.................................. 268A
McMinnville............................... 280A
Memphis................................... 246C1, 259C, 266C1, 274C1,
283C1, 290C
Middleton................................. 264C3
Milan..................................... 222C
Millington................................ 251C
Minor Hill................................ 221A
Monterey.................................. 226A, 284A, 295C2
Morristown................................ 231A
Munford................................... 255C
Murfreesboro.............................. 242C1
[[Page 109]]
Nashville................................. 225C, 238C, 250C, 277C, 290C
Newport................................... 225A
Norris.................................... 294A
Oak Ridge................................. 232A, 262C
Oliver Springs............................ 254C3
Oneida.................................... 288A
Paris..................................... 231C3
Parsons................................... 247A
Pulaski................................... 252A
Red Bank.................................. 232A
Ripley.................................... 235A
Rockwood.................................. 289A
Rogersville............................... 293A
St. Joseph................................ 268A
Savannah.................................. 228A, 269A
Selmer.................................... 230A, 288A
Sevierville............................... 271C1
Seymour................................... 242A
Shelbyville............................... 275C1
Signal Mountain........................... 251A
Smithville................................ 269A
Smyrna.................................... 231A
Soddy-Daisy............................... 272A
South Pittsburg........................... 247C2
Sparta.................................... 288A
Spencer................................... 297A
Spring City............................... 230C3
Springfield............................... 232A
Surgoinsville............................. 282A
Sweetwater................................ 252A
Tazewell.................................. 290A
Tiptonville............................... 267C3
Trenton................................... 248C3
Tullahoma................................. 227C
Tusculum.................................. 276A
Union City................................ 285A, 289A
Wartburg.................................. 267C3
Waverly................................... 286C2
Woodbury.................................. 285A
------------------------------------------------------------------------
Texas
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Abilene................................... 223C2, 263C, 286C1, 292C2,
300C1
Alamo..................................... 285A
Albany.................................... 255A
Alice..................................... 221A, 272A
Allen..................................... 277C
Alpine.................................... 224A
Amarillo.................................. 226C1, 231C, 245C1, 250C,
254C1, 259A, 265C1, 270C1,
275C1, 289C3
Andrews................................... 288A
Anson..................................... 251C1
Archer City............................... 248C1
Arlington................................. 235C
Atlanta................................... 261C2
Austin.................................... 229C, 238C1, 251C1, 264C,
272C2
Azle...................................... 269C
Baird..................................... 236C3
Ballinger................................. 276C1
Bandera................................... 276A
Bastrop................................... 296C2
Bay City.................................. 269C1, 273C1
Beaumont.................................. 231C1, 236C1, 248C1, 273C2,
300C
Beeville.................................. 289C3, 296A
Bells..................................... 226A
Belton.................................... 292C3
Benavides................................. 299C2
Benbrook.................................. 296C1
Big Lake.................................. 252A, 280A
Big Spring................................ 232C3, 239C2
Bishop.................................... 295C3
Bloomington............................... 295C3
Blossom................................... 224C2
Bonham.................................... 252C3
Borger.................................... 282C1, 294A
Brackettville............................. 234A
Brady..................................... 237A
Breckenridge.............................. 261A, 228C2
Brenham................................... 231C3, 291C2
Bridgeport................................ 252A
Brownfield................................ 282C2
Brownsville............................... 258C, 262C
Brownwood................................. 245C1, 257C2, 267C1
Bryan..................................... 252A, 258A, 284C2
Buda...................................... 268C1
Burkburnett............................... 284C1
Burnet.................................... 223A, 295A
Caldwell.................................. 297A
Cameron................................... 232A, 280C2
Campbell.................................. 296A
Camp Wood................................. 251C3
Canadian.................................. 235C1
Canyon.................................... 296A, 300C1
Carrizo Springs........................... 221A, 228A
Carthage.................................. 255C1, 282A
Cedar Park................................ 227C
Center.................................... 263A
Centerville............................... 278A, 290C3
Childress................................. 241C2
Claude.................................... 239C1
Clarksville............................... 253C
Cleveland................................. 246C
Clifton................................... 281C3
Coahoma................................... 288A
Coalgate.................................. 288C2
Coleman................................... 272C3
College Station........................... 263C2
Colorado City............................. 296A
Columbus.................................. 252A
Comanche.................................. 232C2
Comfort................................... 236C1
Conroe.................................... 295C
Copperas Cove............................. 276C3
Corpus Christi............................ 230C1, 234C3, 238C, 243C1,
256C1
Corrigan.................................. 261A
Cotulla................................... 242A
Crane..................................... 267C1
Crockett.................................. 224C2, 228C2
Crystal Beach............................. 268C3, 287A
Crystal City.............................. 232A
Dalhart................................... 240A
Dallas.................................... 223C, 250C, 254C, 262C,
266C, 275C, 283C, 287C
Decatur................................... 289C
Del Rio................................... 232A, 242C1
Denton.................................... 256C, 291C
Denver City............................... 248C2
DeQueen................................... 227A
Detroit................................... 282C2
Devine.................................... 223C2
Diboll.................................... 238C1
Dilley.................................... 255C2
Dimmitt................................... 263C3
Dublin.................................... 226C3
Dumas..................................... 237C3
Eagle Pass................................ 224A
Eastland.................................. 249A
Eden...................................... 283A
Edinburg.................................. 281C, 300C1
Edna...................................... 241C3
[[Page 110]]
El Campo.................................. 245C1
El Paso................................... 222C, 226C, 230C, 234C,
238C, 242C, 248C, 260C,
271C
Electra................................... 235C2
Eldorado.................................. 285A
Elgin..................................... 223A
Fabens.................................... 276A
Fairfield................................. 256C3
Falfurrias................................ 292A
Farmersville.............................. 221A
Farwell................................... 222C1, 252C2
Floresville............................... 231C2
Flower Mound.............................. 244C
Floydada.................................. 237A
Fort Stockton............................. 232A
Fort Worth................................ 231C, 242C, 258C, 298C1
Fort Worth-Dallas......................... 246C, 271C
Franklin.................................. 270C3
Frankston................................. 244C2
Fredericksburg............................ 266C
Freeport.................................. 277C
Freer..................................... 240A
Friona.................................... 234C2
Gainesville............................... 233C, 300C1
Galveston................................. 293C
Ganado.................................... 284C2
Gardendale................................ 271C
Gatesville................................ 252A
George West............................... 228C3, 265A
Georgetown................................ 244C1, 299C3
Gilmer.................................... 237C3
Glen Rose................................. 221C1
Goldsmith................................. 234A
Goliad.................................... 240C3
Gonzales.................................. 292C3
Graham.................................... 234C3
Greenville................................ 228C3
Gregory................................... 283A
Groves.................................... 223C2
Groveton.................................. 251A
Haltom City............................... 227C2
Hamlin.................................... 279C
Harker Heights............................ 288C2
Harlingen................................. 233C, 241C
Haskell................................... 246C1
Hearne.................................... 276A
Hebbronville.............................. 269A
Hemphill.................................. 280A
Hempstead................................. 287C3
Hereford.................................. 278C2, 292C2
Higland Park-Dallas....................... 279C
Highland Village.......................... 264C
Hillsboro................................. 273C1
Hondo..................................... 290A
Hooks..................................... 240C3
Houston................................... 229C, 233C, 239C, 243C,
250C, 256C, 262C, 266C,
271C, 275C, 281C, 289C
Howe...................................... 237C3
Hudson.................................... 242A
Hunt...................................... 260A
Huntington................................ 270C2
Huntsville................................ 259C3, 269A
Hutto..................................... 221A
Idalou.................................... 289A, 299A
Ingleside................................. 297C3
Inglis.................................... 257A
Ingram.................................... 243A
Iowa Park................................. 242A
Jacksboro................................. 238A
Jacksonville.............................. 272C2, 293C
Jasper.................................... 274C2, 297A
Jefferson................................. 283A
Johnson City.............................. 300C2
Jourdanton................................ 239C3
Junction.................................. 228C2
Karnes City............................... 276C2
Kennedy................................... 221A
Kerens.................................... 295A
Kermit.................................... 292A
Kerrville................................. 222C2, 232C2, 291A
Kilgore................................... 241C2
Killeen................................... 222A
Kingsville................................ 224C2, 248C1
Knox City................................. 297A
Krum...................................... 229C3
La Grange................................. 285A
Lake Jackson.............................. 298C
Lamesa.................................... 284C1
Laredo.................................... 224A, 235C1, 251C1, 291A
Leakey.................................... 282A, 226A
Leander................................... 255C1
Lewisville................................ 300C1
Levelland................................. 288A
Liberty................................... 260C2
Linden.................................... 257C2
Littlefield............................... 238C3
Livingston................................ 222C2
Llano..................................... 242A, 275A, 293A
Lometa.................................... 270A
Longview.................................. 247C2, 289C
Lorenzo................................... 251C2
Los Ybanez................................ 253C2
Lovelady.................................. 282C3
Lubbock................................... 229C1, 233C1, 242C1, 258C1,
266C1, 273C1, 293C2
Lufkin.................................... 230A, 257C2, 286C
Luling.................................... 234C
Madisonville.............................. 241C2, 263C3, 267A
Malakoff.................................. 240A
Marfa..................................... 228A
Markham................................... 223A
Marlin.................................... 225C2
Marshall.................................. 222A, 280A
Mason..................................... 224A, 239C2, 273C2, 281C2,
289C2
McAllen................................... 245C, 253C
Mc Camey.................................. 237A
McQueeney................................. 249C1
Memphis................................... 287C1
Menard.................................... 265C2
Mercedes.................................. 292A
Meridian.................................. 285A
Merkel.................................... 274C1
Mertzon................................... 266A
Mexia..................................... 285A
Midland................................... 222C, 227C1, 236C3, 277C1,
294C1
Mineola................................... 260A
Mineral Wells............................. 240C1
Mirando City.............................. 263C2
Mission................................... 288A
Missouri City............................. 285C3
Monahans.................................. 260C1
Mt. Enterprise............................ 260A
Muenster.................................. 294C
Muleshoe.................................. 276A
Nacogdoches............................... 221A, 277C1
Navasota.................................. 223A
New Boston................................ 236C2, 278C2, 286A
New Braunfels............................. 221A
New Ulm................................... 222A
Nolanville................................ 297A
Odem...................................... 252C2
Odessa.................................... 241C1, 245C1, 250C1, 256C1,
300C1
[[Page 111]]
Olney..................................... 282C2
Orange.................................... 283C1, 291C
Ore City.................................. 295C3
Overton................................... 264C3
Ozona..................................... 232A
Palacios.................................. 259A
Palestine................................. 252C2
Pampa..................................... 262C2
Paris..................................... 230C2, 270C2, 299C2
Parowan................................... 300C2
Pasadena.................................. 225C
Pearsall.................................. 237A, 281C1
Pecos..................................... 247C1, 252A
Perryton.................................. 241C3
Pilot Point............................... 285C1
Pittsburg................................. 245C3, 276C3
Plainview................................. 247C1, 280C1, 295C2
Point Comfort............................. 231C3
Port Arthur............................... 227C, 253C
Port Isabel............................... 266A
Port Lavaca............................... 227C1
Portland.................................. 288A
Post...................................... 297C2
Premont................................... 264C3
Quanah.................................... 265C3
Raymondville.............................. 271C2, 289A
Refugio................................... 263A, 291A
Reno...................................... 255A
Rio Grande City........................... 236A, 298C2
Robinson.................................. 300A
Robstown.................................. 260C1, 286A
Rockdale.................................. 253A
Rockport.................................. 272C2
Rocksprings............................... 223A, 295C2
Roma...................................... 249A
Round Rock................................ 290C2
Rusk...................................... 249C3
San Angelo................................ 225C1, 230C1, 234C1, 248C1,
254C, 261C2, 270C1, 291C2,
298C1
San Antonio............................... 225C, 241C1, 247C, 258C,
262C, 270C1, 274Cl, 283C1,
298C
San Augustine............................. 223A
San Diego................................. 290C3
San Marcos................................ 278C
Sanger.................................... 281C3
San Saba.................................. 291A
Santa Anna................................ 288C3
Schertz................................... 253C1
Seabrook.................................. 221C1
Seadrift.................................. 286a
Seguin.................................... 287C
Seminole.................................. 292A
Seymour................................... 222C2, 230C2, 254A
Shamrock.................................. 224A
Silsbee................................... 269A
Sinton.................................... 267C1, 279C1
Slaton.................................... 224C1
Snyder.................................... 255A, 268C2
Sonora.................................... 221A
South Padre Island........................ 224A, 237A
Spearman.................................. 252A
Stamford.................................. 295C2
Stanton................................... 290C2
Stephenville.............................. 252A
Sterling City............................. 243C2
Sulphur Bluff............................. 259A
Sulphur Springs........................... 240A
Sweetwater................................ 244A
Taft...................................... 293C2
Tahoka.................................... 262C1, 278A
Tatum..................................... 262A
Taylor.................................... 282C2
Temple.................................... 269C3
Terrell Hills............................. 294C
Texarkana................................. 251C, 273C1
Thorndale................................. 257A
Three Rivers.............................. 233C2
Toquerville............................... 280C
Tulia..................................... 285C3
Tye....................................... 259C1
Tyler..................................... 221C3, 226C1, 268C, 281C2
Uvalde.................................... 229A, 272A, 285C3
Van Alstyne............................... 260A
Vernon.................................... 276A
Victoria.................................. 222A, 236C1, 254C1, 265A,
300C1
Waco...................................... 233A, 239C2, 248C, 260C,
277A
Wake Village.............................. 233A
Wellington................................ 298C3
Whitehouse................................ 297C2
Whitesboro................................ 273C2
Wichita Falls............................. 225C1, 260C1, 272C1, 280A,
292C2
Willis.................................... 279C3
Winfield.................................. 249C3
Winnie.................................... 264C
Winnsboro................................. 284A
Winona.................................... 274C3
Winters................................... 241C2
Woodville................................. 234C2
Yoakum.................................... 223A
Yorktown.................................. 242A
Zapata.................................... 228A, 274A, 280A
------------------------------------------------------------------------
Effective Date Notes: 1. At 65 FR 55924, Sept. 15, 2000, Texas was
amended by adding Channel 223A at Rocksprings, effective Oct. 16, 2000.
2. At 65 FR 56800, Sept. 20, 2000, Texas was amended by removing
Channel 281A and adding Channel 281C1 at Pearsall and by removing
Channel 281A and adding Channel 265A at George West, effective Oct. 24,
2000.
3. At 65 FR 56801, Sept. 20, 2000, Texas was amended by removing
Rosenberg, Channel 285A, by adding Missouri City, Channel 285C3, by
removing Channel 285A at Galveston, and adding Channel 287A at Crystal
Beach, effective Oct. 23, 2000.
Utah
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Blanding.................................. 221A
Bountiful................................. 258C
Brian Head................................ 251C
Brigham City.............................. 264C, 295C
Castle Dale............................... 237C3
Cedar City................................ 223C, 235C1
Centerville............................... 289C
Coalville................................. 223C3
Delta..................................... 239C1
Fountain Green............................ 260A
Huntington................................ 296C2
Huntsville................................ 276C3
Hurricane................................. 275C3
Kanab..................................... 266C1
Levan..................................... 244C1
Logan..................................... 225C2, 233C
Manti..................................... 286C
Midvale................................... 274C
[[Page 112]]
Moab...................................... 246C1
Mona...................................... 225A
Monroe.................................... 257C2
Monticello................................ 291C1
Nephi..................................... 224A, 280C1
Oakley.................................... 268C1
Ogden..................................... 238C1, 250C, 266C, 270C
Orem...................................... 298C
Parowan................................... 300C2
Payson.................................... 222A
Price..................................... 252C3, 265A
Provo..................................... 235C, 242C
Randolph.................................. 272A
Richfield................................. 229C, 248
Roosevelt................................. 232C1, 253C2
Roy....................................... 300C
St. George................................ 228C2, 240C, 260C
Salt Lake City............................ 227C, 231C, 246C, 254C,
262C, 278C, 282C
Smithfield................................ 280A
Spanish Fork.............................. 293C1
Tooele.................................... 221C3
Toquerville............................... 280C
Torrey.................................... 253A
Tremonton................................. 286C
Vernal.................................... 290C3
Wellington................................ 221C3
------------------------------------------------------------------------
Vermont
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Addison................................... 229C3
Barre..................................... 296A
Barton.................................... 262A
Bellows Falls............................. 296A
Bennington................................ 232A
Brandon................................... 268A
Brattleboro............................... 224A, 244A
Bristol................................... 248A
Burlington................................ 225C, 255C1, 300C
Canaan.................................... 231C3
Danville.................................. 239A
Derby Center.............................. 221C3
Hartford.................................. 282A
Killington................................ 287C2
Lyndon.................................... 249C3
Manchester................................ 274B
Marlboro.................................. 268A
Middlebury................................ 265A
Montpelier................................ 284C2
Randolph.................................. 271C3
Royalton.................................. 276A
Rupert.................................... 281A
Rutland................................... 233C3, 246C2, 251C2
South Burlington.......................... 238C3
Springfield............................... 228A
St. Albans................................ 272A
St. Johnsbury............................. 288A
Stowe..................................... 269A
Vergennes................................. 294C2
Warren.................................... 241A
Waterbury................................. 277C3
West Rutland.............................. 298C3
White River Junction...................... 237A
Wilmington................................ 264A
Woodstock................................. 230A
------------------------------------------------------------------------
Effective Date Note: At 65 FR 55924, Sept. 15, 2000, Vermont was
amended by adding Bristol, Channel 248A, effective Oct. 16, 2000.
Virginia
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Abingdon.................................. 224A
Accomac................................... 257B1
Alberta................................... 276A
Alta Vista................................ 288A
Amherst................................... 300C1
Appomattox................................ 274C1, 296A
Arlington................................. 286B
Ashland................................... 261A
Bedford................................... 295A
Berryville................................ 288A
Big Stone Gap............................. 228C2
Blacksburg................................ 287C3
Blackstone................................ 228C3
Bluefield................................. 292A
Bowling Green............................. 245A
Bridgewater............................... 286A
Broadway.................................. 238A
Buena Vista............................... 244A
Buffalo Gap............................... 238A
Cape Charles.............................. 241B
Cedar Bluff............................... 299C3
Charlottesville........................... 224A, 236A, 248B, 298A
Chase City................................ 260C3
Chesa-Portsm-Va Bea....................... 271A
Chesapeake................................ 229C1
Chester................................... 266A
Chincoteague.............................. 243A
Christiansburg............................ 264A
Churchville............................... 292B1
Clarksville............................... 252C3
Clifton Forge............................. 280A
Clinchco.................................. 221A
Coeburn................................... 259C3
Colonial Beach............................ 240A
Colonial Heights.......................... 237B1
Covington................................. 265A
Crewe..................................... 284C1
Crozet.................................... 272A, 278A
Culpeper.................................. 276A
Danville.................................. 277C1
Deltaville................................ 222A
Dillwyn................................... 287A
Elkton.................................... 252A
Emporia................................... 258A
Ettrick................................... 226A
Exmore.................................... 291B1, 298B
Falmouth.................................. 283A
Farmville................................. 225A, 239B, 267A
Fort Lee.................................. 243B
Franklin.................................. 269A
Fredericksburg............................ 227B, 268B
Front Royal............................... 237A, 257A
Galax..................................... 251C
Gloucester................................ 256A
Goochland................................. 263A
Gretna.................................... 292A
Grundy.................................... 249A
Hampton................................... 267B
Harrisonburg.............................. 264B, 282B
Hot Springs............................... 296A
Jonesville................................ 256A
Kilmarnock................................ 269A
Lawrenceville............................. 288A
Lebanon................................... 297A
Louisa.................................... 288A
Luray..................................... 280A, 289A
Lynchburg................................. 250C3, 261C3, 269C3, 290A
Manassas.................................. 294B
Marion.................................... 230C, 273A, 278A
[[Page 113]]
Martinsville.............................. 242C1
Mechanicsville............................ 221B1
Mount Jackson............................. 245A
Narrows................................... 267A
Newport News.............................. 247B
Norfolk................................... 239B, 254B, 259B, 263B,
275B, 283B, 287B
Norton.................................... 292A
Onley-Onancock............................ 277B
Orange.................................... 244A
Pennington Gap............................ 288A
Petersburg................................ 257A, 262A
Pound..................................... 272A
Powhatan.................................. 297A
Pulaski................................... 296C3
Radford................................... 269A
Richlands................................. 264A, 288A
Richmond.................................. 233B, 251B, 271B, 279B,
289A, 293B
Roanoke................................... 222C, 235C, 256C, 285C3
Ruckersville.............................. 270A
Rural Retreat............................. 237A
Salem..................................... 228A
Shawsville................................ 273A
Shenandoah................................ 296A
South Boston.............................. 237A, 248C1
South Hill................................ 255C3
Spotsylvania.............................. 257A
Stanleytown............................... 260C3
Staunton.................................. 228A, 232B1, 259B
Strasburg................................. 285A
Suffolk................................... 225B, 295C
Tappahannock.............................. 288A
Tazewell.................................. 261A
Vinton.................................... 268A, 291A, 296A
Virginia Beach............................ 235B
Warrenton................................. 232A, 299B
Warsaw.................................... 265A
West Point................................ 300A
White Stone............................... 285A
Winchester................................ 223B, 273B
Windsor................................... 299A
Woodbridge................................ 290B
Woodstock................................. 229B1
Yorktown.................................. 231B
------------------------------------------------------------------------
Washington
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Aberdeen.................................. 257C1, 284C2
Bellevue.................................. 223C
Bellingham................................ 225C, 282C
Bremerton................................. 295C
Camas..................................... 234C2
Cashmere.................................. 294A
Castle Rock............................... 296C3
Centralia................................. 275C
Chehalis.................................. 282A
Chelan.................................... 228A
Cheney.................................... 266C
Chewelah.................................. *274C3
Clarkston................................. 231C, 275A
Cle Elum.................................. 229A
Colfax.................................... 273C3
Colville.................................. 221A
Davenport................................. 247C3
Dayton.................................... 223C1
Deer Park................................. 296C3
Dishman................................... 293A
East Wenatchee............................ 249C3
Eatonville................................ 285A
Edmonds................................... 287C1
Ellensburg................................ 237C2, 276C2
Elma...................................... 271C3
Ephrata................................... 222C2, 230C3
Forks..................................... 280A
Goldendale................................ 272C3
Grand Coulee.............................. 253C
Grandview................................. 265C2
Hoquiam................................... 237C3
Ilwaco.................................... 280C3
Kelso..................................... 233A
Kennewick................................. 287C
Leavenworth............................... 266A
Long Beach................................ 232A
Longview.................................. 288A
Lynden.................................... 293C
Mabton.................................... 254C3
Manson.................................... 234C3
McCleary.................................. 245C3
Medical Lake.............................. 270C2
Moses Lake................................ 257A, 262C1
Naches.................................... 245A, 257A
Newport................................... 285A
Ocean Shores.............................. 228A
Olympia................................... 241C
Omak...................................... 224C2, 282C2
Opportunity............................... 241C
Othello................................... 248C3
Pasco..................................... 252A, 267C3, 229A
Prosser................................... 269C3
Pullman................................... 249A, 258C, 282C1
Quincy.................................... 240C3, 244A
Raymond................................... 249C3
Richland.................................. 235C, 274C, 293C
Rock Island............................... 258A
Royal City................................ 228A, 242C2
Seattle................................... 227C, 231C, 235C1, 239C,
243C, 251C, 255C, 260C,
264C, 268C, 273C, 299C
Shelton................................... 233A
South Bend................................ 289C2
Spokane................................... 225C, 229C, 245C2, 251C,
255C, 260C, 280C2, 284A,
289C, 300C
Sunnyside................................. 244A
Tacoma.................................... 247C, 279C, 291C
Toppenish................................. 225C2
Vancouver................................. 290C2
Wisp...................................... 292A
Walla Walla............................... 227C1, 239C, 246C, 256C2,
264C3, 265A
Wenatchee................................. 271C, 285C2
Westport.................................. 267A
Wilson Creek.............................. 278C1
Winlock................................... 236A
Winthrop.................................. 248A
Yakima.................................... 233C1, 252A, 259C3, 281C1,
289C1, 297C
------------------------------------------------------------------------
West Virginia
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Arnoldsburg............................... 264A
Barrackville.............................. 226A
Beckley................................... 258B, 279B
Berkeley Springs.......................... 228A
Bethlehem................................. 288B1
Bluefield................................. 283C
Bridgeport................................ 281A
Buckhannon................................ 228B1, 267B
[[Page 114]]
Burnsville................................ 238A
Charles Town.............................. 252A
Charleston................................ 241B, 248B, 260B, 274B
Clarksburg................................ 224A, 285B1, 293B
Danville.................................. 223A
Dunbar.................................... 233A
Elkins.................................... 234B1, 255B1
Elizabeth................................. 291A
Fairmont.................................. 232A, 250B
Fisher.................................... 279A
Grafton................................... 240A
Hinton.................................... 272A
Huntington................................ 263B, 277B, 300B
Kenova.................................... 250A
Keyser.................................... 231B, 296A
Kingwood.................................. 244A, 299A
Lewisburg................................. 276A
Logan..................................... 270B
Lost Creek................................ 242A
Mannington................................ 274A
Martinsburg............................... 248B
Matewan................................... 294C3
Miami..................................... 297B
Milton.................................... 292B1
Mishicot.................................. 234C3
Morgantown................................ 261A, 270B
Moundsville............................... 243A
Mount Gay-Shamrock........................ 234A
Mount Hope................................ 290B
Mullens................................... 224A
New Martinsville.......................... 222A, 258A, 280A
Oak Hill.................................. 231B
Parkersburg............................... 236B, 256B1, 276A
Petersburg................................ 269A
Pocatalico................................ 254A
Point Pleasant............................ 258A
Powhatan.................................. 297A
Princeton................................. 240A, 254C3, 265A
Rainelle.................................. 237B1
Ravenswood................................ 226A
Richwood.................................. 288A
Ridgeley.................................. 263A
Ripley.................................... 252A
Romney.................................... 261A, *281A
Ronceverte................................ 249A
Salem..................................... 277A, 289A
South Charleston.......................... 265A
Spencer................................... 284A
St. Albans................................ 286B
St. Marys................................. 230B1, 287A
Summersville.............................. 225B
Sutton.................................... 246B1
Vienna.................................... 261A
Webster Springs........................... 262B
Welch..................................... 275A
Weston.................................... 272B1
Westover.................................. 265A
Wheeling.................................. 247B, 254B, 298B
White Sulphur Springs..................... 227A
Williamson................................ 243B
Williamstown.............................. 245A
------------------------------------------------------------------------
Effective Date Note: At 65 FR 54176, Sept. 7, 2000, West Virginia
was amended by adding Burnsville, Channel 238A, effective Oct. 10, 2000.
Wisconsin
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Adams..................................... 291A
Algoma.................................... 244C3, 281A
Allouez................................... 294C3
Altoona................................... 251C3
Antigo.................................... 287C1, 291C3
Appleton.................................. 289C
Ashland................................... 244C2, 227C1, *275A
Augusta................................... 268C3
Balsam Lake............................... 285C3
Baradoo................................... 235B
Barron.................................... 249A
Beaver Dam................................ 237A
Berlin.................................... 284A
Birnamwood................................ 225A
Black River Falls......................... 259C3
Bloomer................................... 236C3
Brillion.................................. 298C3
Brookfield................................ 295A
Chetek.................................... 294C2
Chippewa Falls............................ 289C3
Cleveland................................. 251A
Clintonville.............................. 222A
Columbus.................................. 263A
Cornell................................... 260C3
Crandon................................... 276A
De Forest................................. 226A
De Pere................................... 240C3
Denmark................................... 285C3
Dickeyville............................... 266A
Dodgeville................................ 257A
Durand.................................... 240A
Eagle River............................... 233C2
Eau Claire................................ 231C1, 264C1, 283C
Elk Mound................................. 225A
Evansville................................ 290A
Fond Du Lac............................... 296A
Forestville............................... 271A
Fort Atkinson............................. 297B
Green Bay................................. 253C1, 266C
Hallie.................................... 279C1
Hartford.................................. 285A
Hayward................................... 222A, 232C2, 266A
Iron River................................ 297C3
Janesville................................ 260B1
Kaukauna.................................. 276C3
Kenosha................................... 236B
Kewaunee.................................. 224A
La Crosse................................. 227C, 239C2, 285A, 292C3
Ladysmith................................. 224A, 226A
Lake Geneva............................... 241A
Lancaster................................. 249C3
Lomira.................................... 249A
Madison................................... 251B, 268B, 273B, 281B
Manitowoc................................. 221A, 272A
Marathon.................................. 285C3
Marinette................................. 236C1
Marshfield................................ 293C1
Mauston................................... 221A
Mayville.................................. 254A
Medford................................... 257C3
Menomonee Falls........................... 252A
Merrill................................... 281C3
Middleton................................. 292A
Milwaukee................................. 227B, 233B, 239B, 243B,
247B, 256B, 271B, 275B,
299B
Minocqua.................................. 240C3
Mishicot.................................. 234C3
Monomonie................................. 221C3
Monroe.................................... 229B
Mosinee................................... 234C2
Mount Horeb............................... 294A
Mukwonago................................. 287A
[[Page 115]]
Neehah-Menasha............................ 232C3, 262C2
Neillsville............................... 224A, 298C1
Nekoosa................................... 230C3, 288A
New Holstein.............................. 225A
New London................................ 228C2
New Richmond.............................. 296C3
Oconto.................................... 296A
Omro...................................... 258C2
Oshkosh................................... 245A
Park Falls................................ 254C2
Peshtigo.................................. 242C2
Platteville............................... 296A
Plymouth.................................. 283A
Port Washington........................... 261A
Portage................................... 240A, 261A
Prairie Du Chien.......................... 232C2
Racine.................................... 221A, 264B
Reedsburg................................. 275A, 285A
Rhinelander............................... 248C1, 261C1
Rice Lake................................. 242C1, 256C2
Richland Center........................... 265A
Ripon..................................... 241A
River Falls............................... 292A
Rudolph................................... 260C3
Sauk City................................. 242B1
Seymour................................... 282A
Shawano................................... 257C3
Sheboygan................................. 229A
Sheboygan Falls........................... 293A
Shell Lake................................ 237C3
Siren..................................... 289A
Soldiers Grove............................ 290A
Sparta.................................... 246C1
Spencer................................... 222A
Spooner................................... 292A
Sturgeon Bay.............................. 230C1, 249A, 259C2
Sturtevant................................ 284A
Sun Prairie............................... 221A
Superior.................................. 273C1
Suring.................................... 274C1
Three Lakes............................... 229C2
Tomah..................................... 241C2, 255C, 233C3
Tomahawk.................................. 223C3
Trempealeau............................... 288A
Two Rivers................................ 246A, 255A
Verona.................................... 288A
Viroqua................................... 272A
Washburn.................................. *284A, 290C1
Watertown................................. 231B
Waukesha.................................. 291B
Waunakee.................................. 286A
Waupaca................................... 224A
Wausau.................................... 238C, 270C, 300C
Wautoma................................... 272A
Wauwatosa................................. 279B
West Bend................................. 223B
West Salem................................ 261A
Westby.................................... 280A
Whitehall................................. 272A
Whitewater................................ 283A, 293A
Whiting................................... 244C2
Winneconne................................ 280C3
Wisconsin Dells........................... 295A
Wisconsin Rapids.......................... 277C1
------------------------------------------------------------------------
Wyoming
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Afton..................................... 254A
Albin..................................... 297C2
Baggs..................................... 277A
Bairoil................................... 281A
Basin..................................... 277C2
Buffalo................................... 225C1
Burns..................................... 270C2
Casper.................................... 228C1, 233C, 238C, 247C1,
273C, 279C, 284C1, 295C
Centennial................................ 224A
Cheyenne.................................. 229A, 250C1, 260A, 264C1,
280C2, 285A, 292C3
Chugwater................................. 258A
Clearmont................................. 287A
Cody...................................... 244C3, 250C
Diamondville.............................. 287C2
Douglas................................... 223C1, 257A, 265A
Dubois.................................... 231A
Evanston.................................. 291C3, 252C2
Fort Bridger.............................. 256C1
Gillette.................................. 245C1, 249A, 264C1
Glendo.................................... 261A
Glenrock.................................. 252A
Green River............................... 221C, 259C1
Greybull.................................. 262C
Guernsey.................................. 281A
Hanna..................................... 271C, 277A
Hudson.................................... 275C, 286A
Jackson................................... 227C, 237C, 245C1
Kayce..................................... 222C1
Kemmerer.................................. 297C2
Lander.................................... 248C1
Laramie................................... 236C, 244A, 254A, 275C,
283C2, 288C3
Lost Cabin................................ 256C
Lovell.................................... 296C
Lusk...................................... 242C
Manville.................................. 255C1
Marbleton................................. 239A
Meeteetse................................. 273C
Midwest................................... 300A
Mills..................................... 288A
Moorcroft................................. 228A
Newcastle................................. 257A
Pine Bluffs............................... 287C2
Pinedale.................................. 2266A
Powell.................................... 233C, 281C
Rawlins................................... 224A
Riverton.................................. 226C1, 230C1
Rock River................................ 240A
Rock Springs.............................. 236C, 243C, 283C
Saratoga.................................. 259A
Sheridan.................................. 229C, 235C
Shoshoni.................................. 290C, 244A
Sinclair.................................. 262C
Sundance.................................. 276C1
Superior.................................. 293C
Ten Sleep................................. 286C3
Thayne.................................... 290C1
Thermopolis............................... 252A, 269C1
Torrington................................ 252C3
Wamsutter................................. 261C, 266A
Wheatland................................. 269A
Wright.................................... 268C, 287A
Worland................................... 241C2
------------------------------------------------------------------------
Effective Date Notes: 1. At 65 FR 53640, Sept. 5, 2000, Wyoming was
amended by adding Meeteetse, Channel 273C and Channel 244C3 at Cody,
effective Oct. 2, 2000.
2. At 65 FR 53641, Sept. 5, 2000, Wyoming was amended by adding
Channel 228C1 at
[[Page 116]]
Casper; Lusk, Channel 242C; and Sinclair, Channel 262C, effective Oct.
2, 2000.
American Samoa
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Fagaitua.................................. 276C2
Leone..................................... 230C1
Pago Pago................................. 221C3, 226C1
------------------------------------------------------------------------
Central Marianas
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Saipan.................................... 230A
------------------------------------------------------------------------
Garapan
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Saipan.................................... 258C1, 262C2, 266C3, 280C3
------------------------------------------------------------------------
Guam
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Agana..................................... 230C2, 238C2, 248C2, 262C2,
270C2, 275C
Dededo.................................... 286C
Tumon..................................... 282A
------------------------------------------------------------------------
Puerto Rico
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Aguada.................................... 288A
Aguadilla................................. 225B, 262B
Arecibo................................... 293B1, 297B
Bayamon................................... 234B, 264B
Cabo Rojo................................. 272A
Caguas.................................... 277B
Camuy..................................... 275B
Carolina.................................. 299B
Cidra..................................... 249A
Corozal................................... 223B
Culebra................................... 254A
Fajardo................................... 243B
Guayama................................... 295B
Hormigueros............................... 221A, 291A
Isabela................................... 268B
Lajas..................................... 279B
Las Piedras............................... 252A
Luguillo.................................. 221A
Manati.................................... 245B
Maricao................................... 241B
Mayaguez.................................. 231B, 248B, 254B
Naguabo................................... 225A
Ponce..................................... 227B1, 266B, 270B, 286B
Quebradillas.............................. 258A
Rio Grande................................ 247A
Rio Piedras............................... 239B
San German................................ 236B
San Juan.................................. 229B, 256B, 260B, 273B,
284B, 289B
Santa Isabel.............................. 251A
Utuado.................................... 281B
Vieques................................... 291B
------------------------------------------------------------------------
Virgin Islands
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Charlotte Amalie.......................... *226A, 241B1, 250B, 271B,
*275A, 282B, 287B, 297A
Christiansted............................. 228B, 236B, 258B, 262B, 285A
Cruz Bay.................................. 267B
Frederiksted.............................. 253A, 269B1, 278A
------------------------------------------------------------------------
(Sec. 316, 66 Stat. 717; 47 U.S.C. 316; sec. 5, 48 Stat., as amended,
1068; 47 U.S.C. 154, 155; secs. 2, 3, 4, 301, 303, 307, 308, 309, 315,
317, 48 Stat. as amended, 1064, 1065, 1066, 1081, 1082, 1083, 1084,
1085, 1088, 1089; (47 U.S.C. 152, 153, 301, 303, 307, 308, 309, 315,
317); secs 1, 201-205, 208, 215, 218, 313, 314, 403, 404, 410, 602; 48
Stat. as amended; 1070, 1071, 1072, 1073, 1076, 1077, 1087, 1094, 1098,
1102 (47 U.S.C. 151, 201-205, 208, 215, 218, 313, 314, 403, 404, 410,
602))
[FR 12711, Oct. 6, 1965]
Editorial Note: For Federal Register citations affecting Sec. 73.202
see the List of CFR Sections Affected in the Finding Aids section of
this volume.
Effective Date Note: At 65 FR 36377, June 8, 2000, Sec. 73.202,
paragraph (a)(1) was revised. This paragraph contains information
collection and recordkeeping requirements and will not become effective
until approval has been given by the Office of Management and Budget.
Sec. 73.203 Availability of channels.
(a) Except as provided for in paragraph (b) of this section,
applications may be filed to construct FM broadcast stations only at the
communities and on the channels contained in the Table of Allotments
(Sec. 73.202(b)). Applications that fail to comply with this
requirements, whether or not accompanied by a petition to amend the
Table, will not be accepted for tender.
(b) Applications filed on a first come, first served basis may
propose a lower or higher class adjacent, intermediate frequency or co-
channel. Applications for the modification of an existing FM broadcast
station may propose a lower or higher class adjacent, intermediate
frequency or co-channel, or an same class adjacent channel. In these
cases, the applicant need not file a petition for rule making to amend
the Table of Allotments (Sec. 73.202(b)) to specify the modified channel
class.
Note: Changes in channel and/or class by application are limited to
modifications on first, second and third adjacent channels, intermediate
frequency (IF) channels, and co-channels which require no other changes
to
[[Page 117]]
the FM Table of Allotments. Applications requesting such modifications
must meet either the minimum spacing requirements of Sec. 73.207 at the
site specified in the application, without resort to the provisions of
the Commission's Rules permitting short spaced stations as set forth in
Secs. 73.213 through 73.215 or demonstrate by a separate exhibit
attached to the application the existence of a suitable allotment site
that fully complies with Secs. 73.207 and 73.315 without resort to
Secs. 73.213 through 73.215.
[54 FR 11954, Mar. 23, 1989, as amended at 58 FR 38535, July 19, 1993]
Sec. 73.204 International agreements and other restrictions on use of channels.
See Secs. 73.207, 73.220 and 73.1650.
[49 FR 10264, Mar. 20, 1984]
Sec. 73.205 Zones.
For the purpose of allotments and assignments, the United States is
divided into three zones as follows:
(a) Zone I consists of that portion of the United States located
within the confines of the following lines drawn on the United States
Albers Equal Area Projection Map (based on standard parallels 291/2 deg.
and 451/2 deg.; North American datum): Beginning at the most easterly
point on the State boundary line between North Carolina and Virginia;
thence in a straight line to a point on the Virginia-West Virginia
boundary line located at north latitude 37 deg.49' and west longitude
80 deg.12'30"; thence westerly along the southern boundary lines of the
States of West Virginia, Ohio, Indiana, and Illinois to a point at the
junction of the Illinois, Kentucky, and Missouri State boundary lines;
thence northerly along the western boundary line of the State of
Illinois to a point at the junction of the Illinois, Iowa, and Wisconsin
State boundary lines; thence easterly along the northern State boundary
line of Illinois to the 90th meridian; thence north along this meridian
to the 43.5 deg. parallel; thence east along this parallel to the United
States-Canada border; thence southerly and following that border until
it again intersects the 43.5 deg. parallel; thence east along this
parallel tothe 71st meridian; thence in a straight line to the
intersection of the 69th meridian and the 45th parallel; thence east
along the 45th parallel to the Atlantic Ocean. When any of the above
lines pass through a city, the city shall be considered to be located in
Zone I. (See Figure 1 of Sec. 73.699.)
(b) Zone I-A consists of Puerto Rico, the Virgin Islands and that
portion of the State of California which is located south of the 40th
parallel.
(c) Zone II consists of Alaska, Hawaii and the rest of the United
States which is not located in either Zone I or Zone I-A.
[29 FR 14116, Oct. 14, 1964, and 31 FR 10125, July 27, 1966, as amended
at 48 FR 29504, June 27, 1983]
Sec. 73.207 Minimum distance separation between stations.
(a) Except for assignments made pursuant to Sec. 73.213 or 73.215,
FM allotments and assignments must be separated from other allotments
and assignments on the same channel (co-channel) and five pairs of
adjacent channels by not less than the minimum distances specified in
paragraphs (b) and (c) of this section. The Commission will not accept
petitions to amend the Table of Allotments unless the reference points
meet all of the minimum distance separation requirements of this
section. The Commission will not accept applications for new stations,
or applications to change the channel or location of existing
assignments unless transmitter sites meet the minimum distance
separation requirements of this section, or such applications conform to
the requirements of Sec. 73.213 or 73.215. However, applications to
modify the facilities of stations with short-spaced antenna locations
authorized pursuant to prior waivers of the distance separation
requirements may be accepted, provided that such applications propose to
maintain or improve that particular spacing deficiency. Class D
(secondary) assignments are subject only to the distance separation
requirements contained in paragraph (b)(3) of this section. (See
Sec. 73.512 for rules governing the channel and location of Class D
(secondary) assignments.)
(b) The distances listed in Tables A, B, and C apply to allotments
and assignments on the same channel and each of five pairs of adjacent
channels.
[[Page 118]]
The five pairs of adjacent channels are the first (200 kHz above and 200
kHz below the channel under consideration), the second (400 kHz above
and below), the third (600 kHz above and below), the fifty-third (10.6
MHz above and below), and the fifty-fourth (10.8 MHz above and below).
The distances in the Tables apply regardless of whether the proposed
station class appears first or second in the ``Relation'' column of the
table.
(1) Domestic allotments and assignments must be separated from each
other by not less than the distances in Table A which follows:
Table A--Minimum Distance Separation Requirements In Kilometers (Miles)
------------------------------------------------------------------------
Co- 400/600 10.6/
Relation channel 200 kHz kHz 10.8 MHz
------------------------------------------------------------------------
A to A.......................... 115 (71) 72 (45) 31 (19) 10 (6)
A to B1......................... 143 (89) 96 (60) 48 (30) 12 (7)
A to B.......................... 178 113 (70) 69 (43) 15 (9)
(111)
A to C3......................... 142 (88) 89 (55) 42 (26) 12 (7)
A to C2......................... 166 106 (66) 55 (34) 15 (9)
(103)
A to C1......................... 200 133 (83) 75 (47) 22 (14)
(124)
A to C.......................... 226 165 95 (59) 29 (18)
(140) (103)
B1 to B1........................ 175 114 (71) 50 (31) 14 (9)
(109)
B1 to B......................... 211 145 (90) 71 (44) 17 (11)
(131)
B1 to C3........................ 175 114 (71) 50 (31) 14 (9)
(109)
B1 to C2........................ 200 134 (83) 56 (35) 17 (11)
(124)
B1 to C1........................ 233 161 77 (48) 24 (15)
(145) (100)
B1 to C......................... 259 193 105 (65) 31 (19)
(161) (120)
B to B.......................... 241 169 74 (46) 20 (12)
(150) (105)
B t0 C3......................... 211 145 (90) 71 (44) 17(11)
(131)
B to C2......................... 241 169 74 (46) 20 (12)
(150) (105)
B to C1......................... 270 195 79 (49) 27 (17)
(168) (121)
B to C.......................... 274 217 105 (65) 35 (22)
(170) (135)
C3 to C3........................ 153 (95) 99 (62) 43 (27) 14 (9)
C3 to C2........................ 177 117 (73) 56 (35) 17 (11)
(110)
C3 to C1........................ 211 144 (90) 76 (47) 24 (15)
(131)
C3 to C......................... 237 176 96 (60) 31 (19)
(147) (109)
C2 to C2........................ 190 130 (81) 58 (36) 20 (12)
(118)
C2 to C1........................ 224 158 (98) 79 (49) 27 (17)
(139)
C2 to C......................... 249 188 105 (65) 35 (22)
(155) (117)
C1 to C1........................ 245 177 82 (51) 34 (21)
(152) (110)
C1 to C......................... 270 209 105 (65) 41 (25)
(168) (130)
C to C.......................... 290 241 105 (65) 48 (30)
(180) (150)
------------------------------------------------------------------------
(2) Under the Canada-United States FM Broadcasting Agreement,
domestic U.S. allotments and assignments within 320 kilometers (199
miles) of the common border must be separated from Canadian allotments
and assignments by not less than the distances given in Table B, which
follows. When applying Table B, U.S. Class C2 allotments and assignments
are considered to be Class B; also, U.S. Class C3 allotments and
assignments and U.S. Class A assignments operating with more than 3 kW
ERP and 100 meters antenna HAAT (or equivalent lower ERP and higher
antenna HAAT based on a class contour distance of 24 km) are considered
to be Class B1.
Table B--Minimum Distance Separation Requirements in Kilometers
----------------------------------------------------------------------------------------------------------------
Co- Adjacent Channels I.F.
Channel -------------------------------------------
Relation ----------- 10.6/10.8
0 kHz 200 kHz 400 kHz 600 kHz MHz
----------------------------------------------------------------------------------------------------------------
A-A...................................................... 132 85 45 37 8
A-B1..................................................... 180 113 62 54 16
A-B...................................................... 206 132 76 69 16
A-C1..................................................... 239 164 98 90 32
A-C...................................................... 242 177 108 100 32
B1-B1.................................................... 197 131 70 57 24
B1-B..................................................... 223 149 84 71 24
B1-C1.................................................... 256 181 106 92 40
B1-C..................................................... 259 195 116 103 40
B-B...................................................... 237 164 94 74 24
.........
[[Page 119]]
B-C1..................................................... 271 195 115 95 40
B-C...................................................... 274 209 125 106 40
C1-C1.................................................... 292 217 134 101 48
C1-C..................................................... 302 230 144 111 48
C-C...................................................... 306 241 153 113 48
----------------------------------------------------------------------------------------------------------------
(3) Under the 1992 Mexico-United States FM Broadcasting Agreement,
domestic U.S. assignments or allotments within 320 kilometers (199
miles) of the common border must be separated from Mexican assignments
or allotments by not less than the distances given in Table C in this
paragraph (b)(3). When applying Table C--
(i) U.S. or Mexican assignments or allotments which have been
notified internationally as Class A are limited to a maximum of 3.0 kW
ERP at 100 meters HAAT, or the equivalent;
(ii) U.S. or Mexican assignments or allotments which have been
notified internationally as Class AA are limited to a maximum of 6.0 kW
ERP at 100 meters HAAT, or the equivalent;
(iii) U.S. Class C3 assignments or allotments are considered Class
B1;
(iv) U.S. Class C2 assignments or allotments are considered Class B;
and
(v) Class C1 assignments or allotments assume maximum facilities of
100 kW ERP at 300 meters HAAT. However, U.S. Class C1 stations may not,
in any event, exceed the domestic U.S. limit of 100 kW ERP at 299 meters
HAAT, or the equivalent.
Table C--Minimum Distance Separation Requirements in Kilometers
------------------------------------------------------------------------
400 kHz 10.6 or
Relation Co- 200 kHz or 600 10.8 MHz
Channel kHz (I.F.)
------------------------------------------------------------------------
A to A...................... 100 61 25 8
A to AA..................... 111 68 31 9
A to B1..................... 138 88 48 11
A to B...................... 163 105 65 14
A to C1..................... 196 129 74 21
A to C...................... 210 161 94 28
AA to AA.................... 115 72 31 10
AA to B1.................... 143 96 48 12
AA to B..................... 178 125 69 15
AA to C1.................... 200 133 75 22
AA to C..................... 226 165 95 29
B1 to B1.................... 175 114 50 14
B1 to B..................... 211 145 71 17
B1 to C1.................... 233 161 77 24
B1 to C..................... 259 193 96 31
B to B...................... 237 164 65 20
B to C1..................... 270 195 79 27
B to C...................... 270 215 98 35
C1 to C1.................... 245 177 82 34
C1 to C..................... 270 209 102 41
C to C...................... 290 228 105 48
------------------------------------------------------------------------
(c) The distances listed below apply only to allotments and
assignments on Channel 253 (98.5 MHz). The Commission will not accept
petitions to amend the Table of Allotments, applications for new
stations, or applications to change the channel or location of existing
assignments where the following minimum distances (between transmitter
sites, in kilometers) from any TV Channel 6 allotment or assignment are
not met:
[[Page 120]]
Minimum Distance Separation From TV Channel 6 (82-88 MHz)
------------------------------------------------------------------------
TV Zones II
FM Class TV Zone I & III
------------------------------------------------------------------------
A............................................. 17 22
B1............................................ 19 23
B............................................. 22 26
C3............................................ 19 23
C2............................................ 22 26
C1............................................ 29 33
C............................................. 36 41
------------------------------------------------------------------------
[48 FR 29504, June 27, 1983, as amended at 49 FR 10264, Mar. 20, 1984;
49 FR 19670, May 9, 1984; 49 FR 50047, Dec. 26, 1984; 51 FR 26250, July
22, 1986; 54 FR 14963, Apr. 14, 1989; 54 FR 16366, Apr. 24, 1989; 54 FR
19374, May 5, 1989; 54 FR 35338, Aug. 25, 1989; 56 FR 27426, June 14,
1991; 56 FR 57293, Nov. 8, 1991; 62 FR 50256, Sept. 25, 1997]
Sec. 73.208 Reference points and distance computations.
(a)(1) The following reference points must be used to determine
distance separation requirements when petitions to amend the Table of
Allotments (Sec. 73.202(b)) are considered:
(i) First, transmitter sites if authorized, or if proposed in
applications with cut-off protection pursuant to paragraph (a)(3) of
this section;
(ii) Second, reference coordinates designated by the FCC;
(iii) Third, coordinates listed in the United States Department of
Interior publication entitled Index to the National Atlas of the United
States of America; or
(iv) Last, coordinates of the main post office.
(The community's reference points for which the petition is
submitted will normally be the coordinates listed in the above
publication.)
(2) When the distance between communities is calculated using
community reference points and it does not meet the minimum separation
requirements of Sec. 73.207, the channel may still be allotted if a
transmitter site is available that would meet the minimum separation
requirements and still permit the proposed station to meet the minimum
field strength requirements of Sec. 73.315. A showing indicating the
availability of a suitable site should be sumitted with the petition. In
cases where a station is not authorized in a community or communities
and the proposed channel cannot meet the separation requirement a
showing should also be made indicating adequate distance between
suitable transmitter sites for all communities.
(3) Petitions to amend the Table of Allotments that do not meet
minimum distance separation requirements to transmitter sites specified
in pending applications will not be considered unless they are filed no
later than:
(i) The last day of a filing window if the application is for a new
FM facility or a major change in the non-reserved band and is filed
during a filing window established under section 73.3564(d)(3); or
(ii) The cut-off date established in a Commission Public Notice
under Sec. 73.3564(d) and 73.3573(e) if the application is for a new FM
facility or a major change in the reserved band; or
(iii) The date of receipt of all other types of FM applications. If
an application is amended so as to create a conflict with a petition for
rule making filed prior to the date the amendment is filed, the amended
application will be treated as if filed on the date of the amendment for
purposes of this paragraph (a)(3).
Note: If the filing of a conflicting FM application renders an
otherwise timely filed counterproposal unacceptable, the counterproposal
may be considered in the rulemaking proceeding if it is amended to
protect the site of the previously filed FM application within 15 days
after being placed on the Public Notice routinely issued by the staff
concerning the filing of counterproposals. No proposals involving
communities not already included in the proceeding can be introduced
during the reply comment period as a method of resolving conflicts. The
counterproponent is required to make a showing that, at the time it
filed the counterproposal, it did not know, and could not have known by
exercising due diligence, of the pendency of the conflicting FM
application.
(b) Station separations in licensing proceedings shall be determined
by the distance between the coordinates of the proposed transmitter site
in one community and
(1) The coordinates of an authorized transmitter site for the
pertinent channel in the other community; or, where such transmitter
site is not available for use as a reference point,
[[Page 121]]
(2) Reference coordinates designated by the FCC; or, if none are
designated,
(3) The coordinates of the other community as listed in the
publication listed in paragraph (a) of this section; or, if not
contained therein,
(4) The coordinates of the main post office of such other community.
(5) In addition, where there are pending applications in other
communities which, if granted, would have to be considered in
determining station separations, the coordinates of the transmitter
sites proposed in such applications must be used to determine whether
the requirements with respect to minimum separations between the
proposed stations in the respective cities have been met.
(c) The method given in this paragraph shall be used to compute the
distance between two reference points, except that, for computation of
distance involving stations in Canada and Mexico, the method for
distance computation specified in the applicable international agreement
shall be used instead. The method set forth in this paragraph is valid
only for distances not exceeding 475 km (295 miles).
(1) Convert the latitudes and longitudes of each reference point
from degree-minute-second format to degree-decimal format by dividing
minutes by 60 and seconds by 3600, then adding the results to degrees.
(2) Calculate the middle latitude between the two reference points
by averaging the two latitudes as follows:
ML=(LAT1dd+LAT2dd)2
(3) Calculate the number of kilometers per degree latitude
difference for the middle latitude calculated in paragraph (c)(2) as
follows:
KPDlat=111.13209-0.56605 cos(2ML)+0.00120 cos(4ML)
(4) Calculate the number of kilometers per degree longitude
difference for the middle latitude calculated in paragraph (c)(2) as
follows:
KPDlon=111.41513 cos(ML)-0.09455 cos(3ML)+0.00012 cos(5ML)
(5) Calculate the North-South distance in kilometers as follows:
NS=KPDlat(LAT1dd-LAT2dd)
(6) Calculate the East-West distance in kilometers as follows:
EW=KPDlon(LON1dd-LON2dd)
(7) Calculate the distance between the two reference points by
taking the square root of the sum of the squares of the East-West and
North-South distances as follows:
DIST=(NS2+ EW2)0.5
(8) Round the distance to the nearest kilometer.
(9) Terms used in this section are defined as follows:
(i) LAT1dd and LON1dd=the coordinates of the
first reference point in degree-decimal format.
(ii) LAT2dd and LON2dd=the coordinates of the
second reference point in degree-decimal format.
(iii) ML=the middle latitude in degree-decimal format.
(iv) KPDlat=the number of kilometers per degree of
latitude at a given middle latitude.
(v) KPDlon=the number of kilometers per degree of
longitude at a given middle latitude.
(vi) NS=the North-South distance in kilometers.
(vii) EW=the East-West distance in kilometers.
(viii) DIST=the distance between the two reference points, in
kilometers.
[28 FR 13623, Dec. 14, 1963, as amended at 29 FR 14116, Oct. 14, 1964;
48 FR 29505, June 27, 1983; 52 FR 37788, Oct. 9, 1987; 52 FR 39920, Oct.
26, 1987; 54 FR 9806, Mar. 8, 1989; 57 FR 36020, Aug. 12, 1992; 58 FR
38537, July 19, 1993]
Sec. 73.209 Protection from interference.
(a) Permittees and licensees of FM broadcast stations are not
protected from any interference which may be caused by the grant of a
new station, or of authority to modify the facilities of an existing
station, in accordance with the provisions of this subpart. However,
they are protected from interference caused by Class D (secondary)
noncommercial educational FM stations. See Sec. 73.509.
(b) The nature and extent of the protection from interference
afforded FM broadcast stations operating on Channels 221-300 is limited
to that which results when assignments are made in accordance with the
rules in this subpart.
[[Page 122]]
(c) Permittees and licensees of FM stations are not protected from
interference which may be created by the grant of a new LPFM station or
of authority to modify an existing LPFM station, except in instances
where the FM station would receive predicted interference from an LPFM
station within the FM station's 3.16 mV/m (70 dBu) contour.
[43 FR 39715, Sept. 6, 1978 and 48 FR 29505, June 27, 1983; 54 FR 9802,
Mar. 8, 1989; 65 FR 7640, Feb. 15, 2000]
Sec. 73.210 Station classes.
(a) The rules applicable to a particular station, including minimum
and maximum facilities requirements, are determined by its class.
Possible class designations depend upon the zone in which the station's
transmitter is located, or proposed to be located. The zones are defined
in Sec. 73.205. Allotted station classes are indicated in the Table of
Allotments, Sec. 73.202. Class A, B1 and B stations may be authorized in
Zones I and I-A, Class A, C3, C2, C1, and C stations may be authorized
in Zone II.
(b) The power and antenna height requirements for each class are set
forth in Sec. 73.211. If a station has an ERP and an antenna HAAT such
that it cannot be classified using the maximum limits and minimum
requirements in Sec. 73.211, its class shall be determined using the
following procedure:
(1) Determine the reference distance of the station using the
procedure in paragraph (b)(1)(i) of Sec. 73.211. If this distance is
less than or equal to 28 km, the station is Class A; otherwise,
(2) For a station in Zone I or Zone I-A, except for Puerto Rico and
the Virgin Islands:
(i) If this distance is greater than 28 km and less than or equal to
39 km, the station is Class B1.
(ii) If this distance is greater than 39 km and less than or equal
to 52 km, the station is Class B.
(3) For a station in Zone II:
(i) If this distance is greater than 28 km and less than or equal to
39 km, the station is Class C3.
(ii) If this distance is greater than 39 km and less than or equal
to 52 km, the station is Class C2.
(iii) If this distance is greater than 52 km and less than or equal
to 72 km, the station is Class C1.
(iv) If this distance is greater than 72 km and less than or equal
to 92 km, the station is Class C.
(4) For a station in Puerto Rico or the Virgin Islands:
(i) If this distance is less than or equal to 42 km, the station is
Class A.
(ii) If this distance is greater than 42 km and less than or equal
to 46 km, the station is Class B1.
(iii) If this distance is greater then 46 km and less than or equal
to 78 km, the station is Class B.
[52 FR 37788, Oct. 9, 1987; 52 FR 39920, Oct. 26, 1987, as amended at 54
FR 16367, Apr. 24, 1989; 54 FR 19374, May 5, 1989; 54 FR 35339, Aug. 25,
1989]
Sec. 73.211 Power and antenna height requirements.
(a) Minimum requirements. (1) Except as provided in paragraphs
(a)(3) and (b)(2) of this section, FM stations must operate with a
minimum effective radiated power (ERP) as follows:
(i) The minimum ERP for Class A stations is 0.1 kW.
(ii) The ERP for Class B1 stations must exceed 6 kW.
(iii) The ERP for Class B stations must exceed 25 kW.
(iv) The ERP for Class C3 stations must exceed 6 kW.
(v) The ERP for Class C2 stations must exceed 25 kW.
(vi) The ERP for Class C1 stations must exceed 50 kW.
(vii) The minimum ERP for Class C stations is 100 kW.
(2) Class C stations must have an antenna height above average
terrain (HAAT) of at least 300 meters (984 feet). No minimum HAAT is
specified for Classes A, B1, B, C3, C2, or C1 stations.
(3) Stations of any class except Class A may have an ERP less than
that specified in paragraph (a)(1) of this section, provided that the
reference distance, determined in accordance with paragraph (b)(1)(i) of
this section, exceeds the distance to the class contour for the next
lower class. Class A stations may have an ERP less than 100 watts
provided that the reference distance, determined in accordance with
[[Page 123]]
paragraph (b)(1)(i) of this section, equals or exceeds 6 kilometers.
(b) Maximum limits. (1) Except for stations located in Puerto Rico
or the Virgin Islands, the maximum ERP in any direction, reference HAAT,
and distance to the class contour for each FM station class are listed
below:
------------------------------------------------------------------------
Class
Reference contour
Station class Maximum ERP HAAT in distance
meters in
(ft.) kilometers
------------------------------------------------------------------------
A.................. 6kW (7.8 dBk)............. 100 (328) 28
B1................. 25kW (14.0 dBk)........... 100 (328) 39
B.................. 50kW (17.0 dBk)........... 150 (492) 52
C3................. 25kW (14.0 dBk)........... 100 (328) 39
C2................. 50kW (17.0 dBk)........... 150 (492) 52
C1................. 100kW (20.0 dBk).......... 299 (981) 72
C.................. 100kW (20.0 dBk).......... 600 (1968) 92
------------------------------------------------------------------------
(i) The reference distance of a station is obtained by finding the
predicted distance to the 1mV/m contour using Figure 1 of Sec. 73.333
and then rounding to the nearest kilometer. Antenna HAAT is determined
using the procedure in Sec. 73.313. If the HAAT so determined is less
than 30 meters (100 feet), a HAAT of 30 meters must be used when finding
the predicted distance to the 1 mV/m contour.
(ii) If a station's ERP is equal to the maximum for its class, its
antenna HAAT must not exceed the reference HAAT, regardless of the
reference distance. For example, a Class A station operating with 6 kW
ERP may have an antenna HAAT of 100 meters, but not 101 meters, even
though the reference distance is 28 km in both cases.
(iii) Except as provided in paragraph (b)(3) of this section, no
station will be authorized in Zone I or I-A with an ERP equal to 50 kW
and a HAAT exceeding 150 meters. No station will be authorized in Zone
II with an ERP equal to 100 kW and a HAAT exceeding 600 meters.
(2) If a station has an antenna HAAT greater than the reference HAAT
for its class, its ERP must be lower than the class maximum such that
the reference distance does not exceed the class contour distance. If
the antenna HAAT is so great that the station's ERP must be lower than
the minimum ERP for its class (specified in paragraphs (a)(1) and (a)(3)
of this section), that lower ERP will become the minimum for that
station.
(3) For stations located in Puerto Rico or the Virgin Islands, the
maximum ERP in any direction, reference HAAT, and distance to the class
contour for each FM station class are listed below:
------------------------------------------------------------------------
Class
Reference contour
Station class Maximum ERP HAAT in distance
meters in
(ft.) kilometers
------------------------------------------------------------------------
A.................. 6kW (7.8 dBk)............. 240 (787) 42
B1................. 25kW (14.0 dBk)........... 150 (492) 46
B.................. 50kW (17.0 dBk)........... 472 (1549) 78
------------------------------------------------------------------------
(c) Existing stations. Stations authorized prior to March 1, 1984
that do not conform to the requirements of this section may continue to
operate as authorized. Stations operating with facilities in excess of
those specified in paragraph (b) of this section may not increase their
effective radiated powers or extend their 1 mV/m field strength contour
beyond the location permitted by their present authorizations. The
provisions of this section will not apply to applications to increase
facilities for those stations operating with less than the minimum power
specified in paragraph (a) of this section.
[53 FR 17042, May 13, 1988, as amended at 54 FR 16367, Apr. 24, 1989; 54
FR 19374, May 5, 1989; 54 FR 35339, Aug. 25, 1989]
Sec. 73.212 Administrative changes in authorizations.
(a) In the issuance of FM broadcast station authorizations, the
Commission will specify the transmitter output power and effective
radiated power in accordance with the following tabulation:
------------------------------------------------------------------------
Rounded
out to
nearest
Power (watts or kW) figure
(watts or
kW)
------------------------------------------------------------------------
1 to 3...................................................... .05
3 to 10..................................................... .1
10 to 30.................................................... .5
30 to 100................................................... 1
100 to 300.................................................. 5
300 to 1,000................................................ 10
------------------------------------------------------------------------
(b) Antenna heights above average terrain will be rounded out to the
nearest meter.
[28 FR 13623, Dec. 14, 1963, as amended at 48 FR 29506, June 27, 1983]
[[Page 124]]
Sec. 73.213 Grandfathered short-spaced stations.
(a) Stations at locations authorized prior to November 16, 1964,
that did not meet the separation distances required by Sec. 73.207 and
have remained continuously short-spaced since that time may be modified
or relocated with respect to such short-spaced stations, provided that
(i) any area predicted to receive interference lies completely within
any area currently predicted to receive co-channel or first-adjacent
channel interference as calculated in accordance with paragraph (a)(1)
of this section, or that (ii) a showing is provided pursuant to
paragraph (a)(2) of this section that demonstrates that the public
interest would be served by the proposed changes.
(1) The F(50,50) curves in Figure 1 of Sec. 73.333 are to be used in
conjunction with the proposed effective radiated power and antenna
height above average terrain, as calculated pursuant to Sec. 73.313(c),
(d)(2) and (d)(3), using data for as many radials as necessary, to
determine the location of the desired (service) field strength. The
F(50,10) curves in Figure 1a of Sec. 73.333 are to be used in
conjunction with the proposed effective radiated power and antenna
height above average terrain, as calculated pursuant to Sec. 73.313(c),
(d)(2) and (d)(3), using data for as many radials as necessary, to
determine the location of the undesired (interfering) field strength.
Predicted interference is defined to exist only for locations where the
desired (service) field strength exceeds 0.5 mV/m (54 dBu) for a Class B
station, 0.7 mV/m (57 dBu) for a Class B1 station, and 1 mV/m (60 dBu)
for any other class of station.
(i) Co-channel interference is predicted to exist, for the purpose
of this section, at all locations where the undesired (interfering
station) F(50,10) field strength exceeds a value 20 dB below the desired
(service) F(50,50) field strength of the station being considered (e.g.,
where the protected field strength is 60 dBu, the interfering field
strength must be 40 dBu or more for predicted interference to exist).
(ii) First-adjacent channel interference is predicted to exist, for
the purpose of this section, at all locations where the undesired
(interfering station) F(50,10) field strength exceeds a value 6 dB below
the desired (service) F(50,50) field strength of the station being
considered (e.g., where the protected field strength is 60 dBu, the
interfering field strength must be 54 dBu or more for predicted
interference to exist).
(2) For co-channel and first-adjacent channel stations, a showing
that the public interest would be served by the changes proposed in an
application must include exhibits demonstrating that the total area and
population subject to co-channel or first-adjacent channel interference,
caused and received, would be maintained or decreased. In addition, the
showing must include exhibits demonstrating that the area and the
population subject to co-channel or first-adjacent channel interference
caused by the proposed facility to each short-spaced station
individually is not increased. In all cases, the applicant must also
show that any area predicted to lose service as a result of new co-
channel or first-adjacent-channel interference has adequate aural
service remaining. For the purpose of this section, adequate service is
defined as 5 or more aural services (AM or FM).
(3) For co-channel and first-adjacent-channel stations, a copy of
any application proposing interference caused in any areas where
interference is not currently caused must be served upon the licensee(s)
of the affected short-spaced station(s).
(4) For stations covered by this paragraph (a), there are no
distance separation or interference protection requirements with respect
to second-adjacent and third-adjacent channel short-spacings that have
existed continuously since November 16, 1964.
(b) Stations at locations authorized prior to May 17, 1989, that did
not meet the IF separation distances required by Sec. 73.207 and have
remained short-spaced since that time may be modified or relocated
provided that the overlap area of the two stations' 36 mV/m field
strength contours is not increased.
(c) Short spacings involving at least one Class A allotment or
authorization. Stations that became short spaced on or after November
16, 1964 (including stations that do not meet
[[Page 125]]
the minimum distance separation requirements of paragraph (c)(1) of this
section and that propose to maintain or increase their existing distance
separations) may be modified or relocated in accordance with paragraph
(c)(1) or (c)(2) of this section, except that this provision does not
apply to stations that became short spaced by grant of applications
filed after October 1, 1989, or filed pursuant to Sec. 73.215. If the
reference coordinates of an allotment are short spaced to an authorized
facility or another allotment (as a result of the revision of
Sec. 73.207 in the Second Report and Order in MM Docket No. 88-375), an
application for the allotment may be authorized, and subsequently
modified after grant, in accordance with paragraph (c)(1) or (c)(2) of
this section only with respect to such short spacing. No other stations
will be authorized pursuant to these paragraphs.
(1) Applications for authorization under requirements equivalent to
those of prior rules. Each application for authority to operate a Class
A station with no more than 3000 watts ERP and 100 meters antenna HAAT
(or equivalent lower ERP and higher antenna HAAT based on a class
contour distance of 24 km) must specify a transmitter site that meets
the minimum distance separation requirements in this paragraph. Each
application for authority to operate a Class A station with more than
3000 watts ERP (up to a maximum of 5800 watts), but with an antenna HAAT
lower than 100 meters such that the distance to the predicted 0.05 mV/m
(34 dB V/m) F(50,10) field strength contour does not exceed 98
km must specify a transmitter site that meets the minimum distance
separation requirements in this paragraph. Each application for
authority to operate an FM station of any class other than Class A must
specify a transmitter site that meets the minimum distanceseparation
requirements in this paragraph with respect to Class A stations
operating pursuant to this paragraph or paragraph (c)(2) of this
section, and that meets the minimum distance separation requirements of
Sec. 73.207 with respect to all other stations.
Minimum Distance Separation Requirements in Kilometers (miles)
----------------------------------------------------------------------------------------------------------------
Relation Co-channel 200 kHz 400/600 kHz 10.6/10.8 MHz
----------------------------------------------------------------------------------------------------------------
A to A.............................. 105 (65) 64 (40) 27 (17) 8 (5)
A to B1............................. 138 (86) 88 (55) 48 (30) 11 (6)
A to B.............................. 163 (101) 105 (65) 69 (43) 14 (9)
A to C3............................. 138 (86) 84 (52) 42 (26) 11 (6)
A to C2............................. 163 (101) 105 (65) 55 (34) 14 (9)
A to C1............................. 196 (122) 129 (80) 74 (46) 21 (13)
A to C.............................. 222 (138) 161 (100) 94 (58) 28 (17)
----------------------------------------------------------------------------------------------------------------
(2) Applications for authorization of Class A facilities greater
than 3,000 watts ERP and 100 meters HAAT. Each application to operate a
Class A station with an ERP and HAAT such that the reference distance
would exceed 24 kilometers must contain an exhibit demonstrating the
consent of the licensee of each co-channel, first, second or third
adjacent channel station (for which the requirements of Sec. 73.207 are
not met) to a grant of that application. Each such application must
specify a transmitter site that meets the applicable IF-related channel
distance separation requirements of Sec. 73.207. Applications that
specify a new transmitter site which is short-spaced to an FM station
other than another Class A station which is seeking a mutual increase in
facilities may be granted only if no alternative fully-spaced site or
less short-spaced site is available. Licensees of Class A stations
seeking mutual increases in facilities need not show that a fully spaced
site or less short-spaced site is available. Applications submitted
pursuant to the provisions of this paragraph may be granted only if such
action is consistent with the public interest.
[52 FR 37789, Oct. 9, 1987, as amended at 54 FR 14964, Apr. 14, 1989; 54
FR 35339, Aug. 25, 1989; 56 FR 27426, June 14, 1991; 62 FR 50521, Sept.
26, 1997; 63 FR 33876, June 22, 1998]
[[Page 126]]
Sec. 73.215 Contour protection for short-spaced assignments.
The Commission will accept applications that specify short-spaced
antenna locations (locations that do not meet the domestic co-channel
and adjacent channel minimum distance separation requirements of
Sec. 73.207); Provided That, such applications propose contour
protection, as defined in paragraph (a) of this section, with all short-
spaced assignments, applications and allotments, and meet the other
applicable requirements of this section. Each application to be
processed pursuant to this section must specifically request such
processing on its face, and must include the necessary exhibit to
demonstrate that the requisite contour protection will be provided. Such
applications may be granted when the Commission determines that such
action would serve the public interest, convenience, and necessity.
(a) Contour protection. Contour protection, for the purpose of this
section, means that on the same channel and on the first, second and
third adjacent channels, the predicted interfering contours of the
proposed station do not overlap the predicted protected contours of
other short-spaced assignments, applications and allotments, and the
predicted interfering contours of other short-spaced assignments,
applications and allotments do not overlap the predicted protected
contour of the proposed station.
(1) The protected contours, for the purpose of this section, are
defined as follows. For all Class B and B1 stations on Channels 221
through 300 inclusive, the F(50,50) field strengths along the protected
contours are 0.5 mV/m (54 dB) and 0.7 mV/m (57 dB),
respectively. For all other stations, the F(50,50) field strength along
the protected contour is 1.0 mV/m (60 dB).
(2) The interfering contours, for the purpose of this section, are
defined as follows. For co-channel stations, the F(50,10) field strength
along the interfering contour is 20 dB lower than the F(50,50) field
strength along the protected contour for which overlap is prohibited.
For first adjacent channel stations (200 kHz), the F(50,10)
field strength along the interfering contour is 6 dB lower than the
F(50,50) field strength along the protected contour for which overlap is
prohibited. For both second and third adjacent channel stations
(400 kHz and 600 kHz), the F(50,10) field
strength along the interfering contour is 40 dB higher than the F(50,50)
field strength along the protected contour for which overlap is
prohibited.
(3) The locations of the protected and interfering contours of the
proposed station and the other short-spaced assignments, applications
and allotments must be determined in accordance with the procedures of
paragraphs (c), (d)(2) and (d)(3) of Sec. 73.313, using data for as many
radials as necessary to accurately locate the contours.
(4) Stations in Puerto Rico and the Virgin Islands may submit
application for short-spaced locations provided the predicted distance
to their 1 mV/m field strength contour is not extended toward the 1 mV/m
field strength contour of any short-spaced station.
(b) Applicants requesting short-spaced assignments pursuant to this
section must take into account the following factors in demonstrating
that contour protection is achieved:
(1) The ERP and antenna HAAT of the proposed station in the
direction of the contours of other short-spaced assignments,
applications and allotments. If a directional antenna is proposed, the
pattern of that antenna must be used to calculate the ERP in particular
directions. See Sec. 73.316 for additional requirements for directional
antennas.
(2) The ERP and antenna HAAT of other short-spaced assignments,
applications and allotments in the direction of the contours of the
proposed station. The ERP and antenna HAATs in the directions of concern
must be determined as follows:
(i) For vacant allotments, contours are based on the presumed use,
at the allotment's reference point, of the maximum ERP that could be
authorized for the station class of the allotment, and antenna HAATs in
the directions of concern that would result from a non-directional
antenna mounted at a standard eight-radial antenna HAAT equal to the
reference HAAT for the station class of the allotment.
[[Page 127]]
(ii) For existing stations that were not authorized pursuant to this
section, including stations with authorized ERP that exceeds the maximum
ERP permitted by Sec. 73.211 for the standard eight-radial antenna HAAT
employed, and for applications not requesting authorization pursuant to
this section, contours are based on the presumed use of the maximum ERP
for the applicable station class (as specified in Sec. 73.211), and the
antenna HAATs in the directions of concern that would result from a non-
directional antenna mounted at a standard eight-radial antenna HAAT
equal to the reference HAAT for the applicable station class, without
regard to any other restrictions that may apply (e.g. zoning laws, FAA
constraints, application of Sec. 73.213).
(iii) For stations authorized pursuant to this section, except
stations with authorized ERP that exceeds the maximum ERP permitted by
Sec. 73.211 for the standard eight-radial antenna HAAT employed,
contours are based on the use of the authorized ERP in the directions of
concern, and HAATs in the directions of concern derived from the
authorized standard eight-radial antenna HAAT. For stations with
authorized ERP that exceeds the maximum ERP permitted by Sec. 73.211 for
the standard eight-radial antenna HAAT employed, authorized under this
section, contours are based on the presumed use of the maximum ERP for
the applicable station class (as specified in Sec. 73.211), and antenna
HAATs in the directions of concern that would result from a non-
directional antenna mounted at a standard eight-radial antenna HAAT
equal to the reference HAAT for the applicable station class, without
regard to any other restrictions that may apply.
(iv) For applications containing a request for authorization
pursuant to this section, except for applications to continue operation
with authorized ERP that exceeds the maximum ERP permitted by
Sec. 73.211 for the standard eight-radial antenna HAAT employed,
contours are based on the use of the proposed ERP in the directions of
concern, and antenna HAATs in the directions of concern derived from the
proposed standard eight-radial antenna HAAT. For applications to
continue operation with an ERP that exceeds the maximum ERP permitted by
Sec. 73.211 for the standard eight-radial HAAT employed, if processing
is requested under this section, contours are based on the presumed use
of the maximum ERP for the applicable station class (as specified in
Sec. 73.211), and antenna HAATs in the directions of concern that would
result from a nondirectional antenna mounted at a standard eight-radial
antenna HAAT equal to the reference HAAT for the applicable station
class, without regard to any other restrictions that may apply.
Note to paragraph (b): Applicants are cautioned that the antenna
HAAT in any particular direction of concern will not usually be the same
as the standard eight-radial antenna HAAT or the reference HAAT for the
station class.
(c) Applications submitted for processing pursuant to this section
are not required to propose contour protection of any assignment,
application or allotment for which the minimum distance separation
requirements of Sec. 73.207 are met, and may, in the directions of those
assignments, applications and allotments, employ the maximum ERP
permitted by Sec. 73.211 for the standard eight-radial antenna HAAT
employed.
(d) Stations authorized pursuant to this section may be subsequently
authorized on the basis of compliance with the domestic minimum
separation distance requirements of Sec. 73.207, upon filing of an FCC
Form 301 or FCC Form 340 (as appropriate) requesting a modification of
authorization.
(e) The Commission will not accept applications that specify a
short-spaced antenna location for which the following minimum distance
separation requirements, in kilometers (miles), are not met:
------------------------------------------------------------------------
400/600
Relation Co-Channel 200 kHz kHz
------------------------------------------------------------------------
A to A.............................. 92(57) 49(30) 29(18)
A to B1............................. 119(74) 72(45) 46(29)
A to B.............................. 143(89) 96(60) 67(42)
A to C3............................. 119(74) 72(45) 40(25)
A to C2............................. 143(89) 89(55) 53(33)
A to C1............................. 178(111) 111(69) 73(45)
A to C.............................. 203(126) 142(88) 93(58)
B1 to B1............................ 143(89) 96(60) 48(30)
B1 to B............................. 178(111) 114(71) 69(43)
B1 to C3............................ 143(89) 96(60) 48(30)
[[Page 128]]
B1 to C2............................ 175(109) 114(71) 55(34)
B1 to C1............................ 200(124) 134(83) 75(47)
B1 to C............................. 233(145) 165(103) 95(59)
B to B.............................. 211(131) 145(90) 71(44)
B to C3............................. 178(111) 114(70) 69(43)
B to C2............................. 211(131) 145(90) 71(44)
B to C1............................. 241(150) 169(105) 77(48)
B to C.............................. 270(168) 195(121) 105(65)
C3 to C3............................ 142(88) 89(55) 42(26)
C3 to C2............................ 166(103) 106(66) 55(34)
C3 to C1............................ 200(124) 133(83) 75(47)
C3 to C............................. 226(140) 165(103) 95(59)
C2 to C2............................ 177(110) 117(73) 56(35)
C2 to C1............................ 211(131) 144(90) 76(47)
C2 to C............................. 237(147) 176(109) 96(60)
C1 to C1............................ 224(139) 158(98) 79(49)
C1 to C............................. 249(155) 188(117) 105(65)
C to C.............................. 270(168) 209(130) 105(65)
------------------------------------------------------------------------
[54 FR 9802, Mar. 8, 1989, as amended at 54 FR 35340, Aug. 25, 1989; 56
FR 57294, Nov. 8, 1991; 57 FR 46325, Oct. 8, 1992]
Sec. 73.220 Restrictions on use of channels.
(a) The frequency 89.1 MHz (channel 206) is revised in the New York
City metropolitan area for the use of the United Nations with the
equivalent of an antenna height of 150 meters (492 feet) above average
terrain and effective radiated power of 20 kWs, and the FCC will make no
assignments which would cause objectionable interference with such use.
(b) In Alaska, FM broadcast stations operating on Channels 221-300
(92.1-107.9 MHz) shall not cause harmful interference to and must accept
interference from non-Government fixed operations authorized prior to
January 1, 1982.
[43 FR 45845, Oct. 4, 1978, as amended at 46 FR 50376, Oct. 13, 1981, 47
FR 30068, July 12, 1982; 48 FR 29507, June 27, 1983]
Sec. 73.232 Territorial exclusivity.
No licensee of an FM broadcast station shall have any arrangement
with a network organization which prevents or hinders another station
serving substantially the same area from broadcasting the network's
programs not taken by the former station, or which prevents or hinders
another station serving a substantially different area from broadcasting
any program of the network organization: Provided, however, That this
section does not prohibit arrangements under which the station is
granted first call within its primary service area upon the network's
programs. The term ``network organization'' means any organization
originating program material, with or without commercial messages, and
furnishing the same to stations interconnected so as to permit
simultaneous broadcast by all or some of them. However, arrangements
involving only stations under common ownership, or only the rebroadcast
by one station of programming from another with no compensation other
than a lump-sum payment by the station rebroadcasting, are not
considered arrangements with a network organization. The term
``arrangement`` means any contract, arrangement or understanding,
express or implied.
[42 FR 16422, Mar. 28, 1977, as amended at 57 FR 48333, Oct. 23, 1992]
Sec. 73.239 Use of common antenna site.
No FM broadcast station license or renewal of FM broadcast station
license will be granted to any person who owns, leases, or controls a
particular site which is peculiarly suitable for FM broadcasting in a
particular area and (a) which is not available for use by other FM
broadcast station licensees; and (b) no other comparable site is
available in the area; and (c) where the exclusive use of such site by
the applicant or licensee would unduly limit the number of FM broadcast
stations that can be authorized in a particular area or would unduly
restrict competition among FM broadcast stations.
[28 FR 13623, Dec. 14, 1963]
Sec. 73.258 Indicating instruments.
(a) Each FM broadcast station shall be equipped with indicating
instruments which conform with the specifications described in
Sec. 73.1215 for determining power by the indirect method; for
indicating the relative amplitude of the transmission line radio
frequency current, voltage, or power; and with such other instruments as
are necessary for the proper adjustment, operation, and maintenance of
the transmitting system.
(b) The function of each instrument shall be clearly and permanently
shown in the instrument itself or on
[[Page 129]]
the panel immediately adjacent thereto.
(c) In the event that any one of these indicating instruments
becomes defective when no substitute which conforms with the required
specifications is available, the station may be operated without the
defective instrument pending its repair or replacement for a period not
in excess of 60 days without further authority of the FCC: Provided
that, if the defective instrument is the transmission line meter of a
station which determines the output power by the direct method, the
operating power shall be determined by the indirect method in accordance
with Sec. 73.267(c) during the entire time the station is operated
without the transmission line meter.
(d) If conditions beyond the control of the licensee prevent the
restoration of the meter to service within the above allowed period, an
informal letter request in accordance with Sec. 73.3549 may be filed
with the FCC, Attention: Audio Services Division, Mass Media Bureau, in
Washington, DC, for such additional time as may be required to complete
repairs of the defective instrument.
[41 FR 36818, Sept. 1, 1976, as amended at 48 FR 44805, Sept. 30, 1983;
50 FR 32416, Aug. 12, 1985; 63 FR 33876, June 22, 1998]
Sec. 73.267 Determining operating power.
(a) The operating power of each FM station is to be determined by
either the direct or indirect method.
(b) Direct method. The direct method of power determination for an
FM station uses the indications of a calibrated transmission line meter
(responsive to relative voltage, current, or power) located at the RF
output terminals of the transmitter. This meter must be calibrated
whenever there is any indication that the calibration is inaccurate or
whenever any component of the metering circuit is repaired or replaced.
The calibration must cover, as a minimum, the range from 90% to 105% of
authorized power. The meter calibration may be checked by measuring the
power at the transmitter terminals while either:
(1) Operating the transmitter into the transmitting antenna, and
determining actual operating power by the indirect method described in
Sec. 73.267(c); or
(2) Operating the transmitter into a load (of substantially zero
reactance and a resistance equal to the transmission line characteristic
impedance) and using an electrical device (within 5%
accuracy) or temperature and coolant flow indicator (within
4% accuracy) to determine the power.
(3) The calibration must cover, as a minimum, the range from 90% to
105% of authorized power and the meter must provide clear indications
which will permit maintaining the operating power within the prescribed
tolerance or the meter shall be calibrated to read directly in power
units.
(c) Indirect method. The operating power is determined by the
indirect method by applying an appropriate factor to the input power to
the last radio-frequency power amplifier stage of the transmitter, using
the following formula:
Transmitter output power=Ep x Ip x F
Where:
Ep=DC input voltage of final radio stage.
Ip=Total DC input current of final radio stage.
F=Efficiency factor.
(1) If the above formula is not appropriate for the design of the
transmitter final amplifier, use a formula specified by the transmitter
manufacturer with other appropriate operating parameters.
(2) The value of the efficiency factor, F, established for the
authorized transmitter output power is to be used for maintaining the
operating power, even though there may be some variation in F over the
power operating range of the transmitter.
(3) The value of F is to be determined and a record kept thereof by
one of the following procedures listed in order of preference:
(i) Using the most recent measurement data for calibration of the
transmission line meter according to the procedures described in
paragraph (b) of this section or the most recent measurements made by
the licensee establishing the value of F. In the case of composite
transmitters or those in which the final amplifier stages have
[[Page 130]]
been modified pursuant to FCC approval, the licensee must furnish the
FCC and also retain with the station records the measurement data used
as a basis for determining the value of F.
(ii) Using measurement data shown on the transmitter manufacturer's
test data supplied to the licensee; Provided, That measurements were
made at the authorized frequency and transmitter output power.
(iii) Using the transmitter manufacturer's measurement data
submitted to the FCC for type acceptance and as shown in the instruction
book supplied to the licensee.
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, 1082 (47 U.S.C. 154,
155, 303))
[44 FR 58731, Oct. 11, 1979, as amended at 45 FR 28141, Apr. 28, 1980;
48 FR 38479, Aug. 24, 1983; 49 FR 4210, Feb. 3, 1984; 49 FR 49851, Dec.
24, 1984]
Sec. 73.277 Permissible transmissions.
(a) No FM broadcast licensee or permittee shall enter into any
agreement, arrangement or understanding, oral or written, whereby it
undertakes to supply, or receives consideration for supplying, on its
main channel a functional music, background music, or other subscription
service (including storecasting) for reception in the place or places of
business of any subscriber.
(b) The transmission (or interruption) of radio energy in the FM
broadcast band is permissible only pursuant to a station license,
program test authority, construction permit, or experimental
authorization and the provisions of this part of the rules.
[29 FR 7471, June 10, 1964. Redesignated at 39 FR 38655, Nov. 1, 1974
and amended at 48 FR 28454, June 22, 1983]
Sec. 73.293 Use of FM multiplex subcarriers.
Licensees of FM broadcast stations may transmit, without further
authorization, subcarrier communication services in accordance with the
provisions of Secs. 73.319 and 73.322.
[51 FR 17028, May 8, 1986]
Sec. 73.295 FM subsidiary communications services.
(a) Subsidiary communication services are those transmitted on a
subcarrier within the FM baseband signal, but do not include services
which enhance the main program broadcast service, or exclusively relate
to station operations (see Sec. 73.293). Subsidiary communications
include, but are not limited to services such as functional music,
specialized foreign language programs, radio reading services, utility
load management, market and financial data and news, paging and calling,
traffic control signal switching, bilingual television audio, and point
to point or multipoint messages.
(b) FM subsidiary communications services that are common carrier in
nature are subject to common carrier regulation. Licensees operating
such services are required to apply to the FCC for the appropriate
authorization and to comply with all policies and rules applicable to
the service. Responsibility for making the initial determinations of
whether a particular activity is common carriage rests with the FM
station licensee. Initial determinations by licensees are subject to FCC
examination and may be reviewed at the FCC's discretion.
(c) Subsidiary communications services are of a secondary nature
under the authority of the FM station authorization, and the authority
to provide such communications services may not be retained or
transferred in any manner separate from the station's authorization. The
grant or renewal of an FM station permit or license is not furthered or
promoted by proposed or past services. The permittee or licensee must
establish that the broadcast operation is in the public interest wholly
apart from the subsidiary communications services provided.
(d) The station identification, delayed recording and sponsor
identification announcements required by Secs. 73.1201, 73.1208, and
73.1212 are not applicable to material transmitted under an SCA.
[[Page 131]]
(e) The licensee or permittee must retain control over all material
transmitted in a broadcast mode via the station's facilities, with the
right to reject any material that it deems inappropriate or undesirable.
[48 FR 28454, June 22, 1983, as amended at 48 FR 44805, Sept. 30, 1983;
49 FR 33663, Aug. 15, 1984; 50 FR 32416, Aug. 12, 1985; 57 FR 48333,
Oct. 23, 1992]
Sec. 73.297 FM stereophonic sound broadcasting.
(a) An FM broadcast station may, without specific authority from the
FCC, transmit stereophonic (biphonic, quadraphonic, etc.) sound programs
upon installation of stereophonic sound transmitting equipment under the
provisions of Secs. 2.1001, 73.322, and 73.1590 of the Rules. Prior to
commencement of stereophonic sound broadcasting, equipment performance
measurements must be made to ensure that the transmitted signal complies
with all applicable rules and standards.
(b) Each licensee or permittee engaging in multichannel broadcasting
must measure the pilot subcarrier frequency as often as necessary to
ensure that it is kept at all times within 2 Hz of the authorized
frequency.
[48 FR 28454, June 22, 1983, and 48 FR 38479, Aug. 24, 1983]
Sec. 73.310 FM technical definitions.
(a) Frequency modulation.
Antenna height above average terrain (HAAT). HAAT is calculated by:
determining the average of the antenna heights above the terrain from 3
to 16 kilometers (2 to 10 miles) from the antenna for the eight
directions evenly spaced for each 45 deg. of azimuth starting with True
North (a different antenna height will be determined in each direction
from the antenna): and computing the average of these separate heights.
In some cases less than eight directions may be used. (See
Sec. 73.313(d).) Where circular or elliptical polarization is used, the
antenna height above average terrain must be based upon the height of
the radiation of the antenna that transmits the horizontal component of
radiation.
Antenna power gain. The square of the ratio of the root-mean-square
(RMS) free space field strength produced at 1 kilometer in the
horizontal plane in millivolts per meter for 1 kW antenna input power to
221.4 mV/m. This ratio is expressed in decibels (dB). If specified for a
particular direction, antenna power gain is based on that field strength
in the direction only.
Auxiliary facility. An auxiliary facility is an antenna separate
from the main facility's antenna, permanently installed on the same
tower or at a different location, from which a station may broadcast for
short periods without prior Commission authorization or notice to the
Commission while the main facility is not in operation (e.g., where
tower work necessitates turning off the main antenna or where lightning
has caused damage to the main antenna or transmission system) (See
Sec. 73.1675).
Center frequency. The term ``center frequency'' means:
(1) The average frequency of the emitted wave when modulated by a
sinusoidal signal.
(2) The frequency of the emitted wave without modulation.
Composite antenna pattern. The composite antenna pattern is a
relative field horizontal plane pattern for 360 degrees of azimuth, for
which the value at a particular azimuth is the greater of the
horizontally polarized or vertically polarized component relative field
values. The composite antenna pattern is normalized to a maximum of
unity (1.000) relative field.
Composite baseband signal. A signal which is composed of all program
and other communications signals that frequency modulates the FM
carrier.
Effective radiated power. The term ``effective radiated power''
means the product of the antenna power (transmitter output power less
transmission line loss) times: (1) The antenna power gain, or (2) the
antenna field gain squared. Where circular or elliptical polarization is
employed, the term effective radiated power is applied separately to the
horizontal and vertical components of radiation. For allocation
purposes, the effective radiated power authorized is the horizontally
polarized component of radiation only.
Equivalent isotropically radiated power (EIRP). The term
``equivalent isotropically radiated power (also
[[Page 132]]
known as ``effective radiated power above isotropic) means the product
of the antenna input power and the antenna gain in a given direction
relative to an isotropic antenna.
FM Blanketing. Blanketing is that form of interference to the
reception of other broadcast stations which is caused by the presence of
an FM broadcast signal of 115 dBu (562 mV/m) or greater signal strength
in the area adjacent to the antenna of the transmitting station. The 115
dBu contour is referred to as the blanketing contour and the area within
this contour is referred to as the blanketing area.
FM broadcast band. The band of frequencies extending from 88 to 108
MHz, which includes those assigned to noncommercial educational
broadcasting.
FM broadcast channel. A band of frequencies 200 kHz wide and
designated by its center frequency. Channels for FM broadcast stations
begin at 88.1 MHz and continue in successive steps of 200 kHz to and
including 107.9 MHz.
FM broadcast station. A station employing frequency modulation in
the FM broadcast band and licensed primarily for the transmission of
radiotelephone emissions intended to be received by the general public.
Field strength. The electric field strength in the horizontal plane.
Free space field strength. The field strength that would exist at a
point in the absence of waves reflected from the earth or other
reflecting objects.
Frequency departure. The amount of variation of a carrier frequency
or center frequency from its assigned value.
Frequency deviation. The peak difference between modulated wave and
the carrier frequency.
Frequency modulation. A system of modulation where the instantaneous
radio frequency varies in proportion to the instantaneous amplitude of
the modulating signal (amplitude of modulating signal to be measured
after pre-emphasis, if used) and the instantaneous radio frequency is
independent of the frequency of the modulating signal.
Frequency swing. The peak difference between the maximum and the
minimum values of the instantaneous frequency of the carrier wave during
modulation.
Multiplex transmission. The term ``multiplex transmission'' means
the simultaneous transmission of two or more signals within a single
channel. Multiplex transmission as applied to FM broadcast stations
means the transmission of facsimile or other signals in addition to the
regular broadcast signals.
Percentage modulation. The ratio of the actual frequency deviation
to the frequency deviation defined as 100% modulation, expressed in
percentage. For FM broadcast stations, a frequency deviation of
plus-minus75kHz is defined as 100% modulation.
(b) Stereophonic sound broadcasting.
Cross-talk. An undesired signal occurring in one channel caused by
an electrical signal in another channel.
FM stereophonic broadcast. The transmission of a stereophonic
program by a single FM broadcast station utilizing the main channel and
a stereophonic subchannel.
Left (or right) signal. The electrical output of a microphone or
combination of microphones placed so as to convey the intensity, time,
and location of sounds originating predominately to the listener's left
(or right) of the center of the performing area.
Left (or right) stereophonic channel. The left (or right) signal as
electrically reproduced in reception of FM stereophonic broadcasts.
Main channel. The band of frequencies from 50 to 15,000 Hz which
frequency-modulate the main carrier.
Pilot subcarrier. A subcarrier that serves as a control signal for
use in the reception of FM stereophonic sound broadcasts.
Stereophonic separation. The ratio of the electrical signal caused
in sound channel A to the signal caused in sound channel B by the
transmission of only a channel B signal. Channels A and B may be any two
channels of a stereophonic sound broadcast transmission system.
Stereophonic sound. The audio information carried by plurality of
channels arranged to afford the listener a sense of the spatial
distribution of sound sources. Stereophonic sound broadcasting includes,
but is not limited to, biphonic (two channel), triphonic
[[Page 133]]
(three channel) and quadrophonic (four channel) program services.
Stereophonic sound subcarrier. A subcarrier within the FM broadcast
baseband used for transmitting signals for stereophonic sound reception
of the main broadcast program service.
Stereophonic sound subchannel. The band of frequencies from 23 kHz
to 99 kHz containing sound subcarriers and their associated sidebands.
(c) Visual transmissions. Communications or message transmitted on a
subcarrier intended for reception and visual presentation on a viewing
screen, teleprinter, facsimile printer, or other form of graphic display
or record.
(d) Control and telemetry transmissions. Signals transmitted on a
multiplex subcarrier intended for any form of control and switching
functions or for equipment status data and aural or visual alarms.
[28 FR 13623, Dec. 14, 1963, as amended at 39 FR 10575, Mar. 21, 1974;
44 FR 36038, June 20, 1979; 48 FR 28454, June 22, 1983; 48 FR 29507,
June 27, 1983; 48 FR 37216, Aug. 17, 1983; 49 FR 45145, Nov. 15, 1984;
57 FR 48333, Oct. 23, 1992; 62 FR 51058, Sept. 30, 1997]
Sec. 73.311 Field strength contours.
(a) Applications for FM broadcast authorizations must show the field
strength contours required by FCC Form 301 or FCC Form 340, as
appropriate.
(b) The field strength contours provided for in this section shall
be considered for the following purposes only:
(1) In the estimation of coverage resulting from the selection of a
particular transmitter site by an applicant for an FM broadcast station.
(2) In connection with problems of coverage arising out of
application of Sec. 73.3555.
(3) In determining compliance with Sec. 73.315(a) concerning the
minimum field strength to be provided over the principal community to be
served.
(4) In determining compliance with Sec. 73.215 concerning contour
protection.
[28 FR 13623, Dec. 14, 1963, as amended at 31 FR 10126, July 27, 1966;
32 FR 11471, Aug. 9, 1967; 52 FR 10570, Apr. 2, 1987; 54 FR 9802, Mar.
8, 1989]
Sec. 73.312 Topographic data.
(a) In the preparation of the profile graphs previously described,
and in determining the location and height above mean sea level of the
antenna site, the elevation or contour intervals shall be taken from
United States Geological Survey Topographic Quadrangle Maps, United
States Army Corps of Engineers Maps or Tennessee Valley Authority maps,
whichever is the latest, for all areas for which such maps are
available. If such maps are not published for the area in question, the
next best topographic information should be used. Topographic data may
sometimes be obtained from state and municipal agencies. The data from
the Sectional Aeronautical Charts (including bench marks) or railroad
depot elevations and highway elevations from road maps may be used where
no better information is available. In cases where limited topographic
data can be obtained, use may be made of an altimeter in a car driven
along roads extending generally radially from the transmitter site.
(b) The Commission will not ordinarily require the submission of
topographical maps for areas beyond 24 km (15 miles) from the antenna
site, but the maps must include the principal city or cities to be
served. If it appears necessary, additional data may be requested.
(c) The U.S. Geological Survey Topography Quadrangle Sheets may be
obtained from the U.S. Geological Survey Department of the Interior,
Washington, DC 20240. The Sectional Aeronautical Charts are available
from the U.S. Coast and Geodetic Survey, Department of Commerce,
Washington, DC 20235. These maps may also be secured from branch offices
and from authorized agents or dealers in most principal cities.
(d) In lieu of maps, the average terrain elevation may be computer
generated except in cases of dispute, using elevations from a 30 second,
point or better topographic data file. The file must be identified and
the data processed for intermediate points along each radial using
linear interpolation techniques. The height above mean sea
[[Page 134]]
level of the antenna site must be obtained manually using appropriate
topographic maps.
[28 FR 13623, Dec. 14, 1963, as amended at 31 FR 10126, July 27, 1966;
49 FR 48937, Dec. 17, 1984; 58 FR 44950, Aug. 25, 1993; 63 FR 33877,
June 22, 1998]
Sec. 73.313 Prediction of coverage.
(a) All predictions of coverage made pursuant to this section shall
be made without regard to interference and shall be made only on the
basis of estimated field strengths.
(b) Predictions of coverage shall be made only for the same purposes
as relate to the use of field strength contours as specified in
Sec. 73.311.
(c) In predicting the distance to the field strength contours, the
F(50,50) field strength chart, Figure 1 of Sec. 73.333 must be used. The
50% field strength is defined as that value exceeded for 50% of the
time.
(1) The F(50,50) chart gives the estimated 50% field strengths
exceeded at 50% of the locations in dB above 1 uV/m. The chart is based
on an effective power radiated from a half-wave dipole antenna in free
space, that produces an unattenuated field strength at 1 kilometer of
about 107 dB above 1 uV/m (221.4 mV/m).
(2) To use the chart for other ERP values, convert the ordinate
scale by the appropriate adjustment in dB. For example, the ordinate
scale for an ERP of 50 kW should be adjusted by 17 dB [10 log (50 kW) =
17 dBk], and therefore a field strength of 60 dBu would correspond to
the field strength value at (60-17 =) 44 dBu on the chart. When
predicting the distance to field strength contours, use the maximum ERP
of the main radiated lobe in the pertinent azimuthal direction (do not
account for beam tilt). When predicting field strengths over areas not
in the plane of the maximum main lobe, use the ERP in the direction of
such areas, determined by considering the appropriate vertical radiation
pattern.
(d) The antenna height to be used with this chart is the height of
the radiation center of the antenna above the average terrain along the
radial in question. In determining the average elevation of the terrain,
the elevations between 3 and 16 kilometers from the antenna site are
used.
(1) Profile graphs must be drawn for eight radials beginning at the
antenna site and extending 16 kilometers therefrom. The radials should
be drawn for each 45 deg. of azimuth starting with True North. At least
one radial must include the principal community to be served even though
it may be more than 16 kilometers from the antenna site. However, in the
event none of the evenly spaced radials include the principal community
to be served, and one or more such radials are drawn in addition, these
radials must not be used in computing the antenna height above average
terrain.
(2) Where the 3 to 16 kilometers portion of a radial extends in
whole or in part over a large body of water or extends over foreign
territory but the 50 uV/m (34 dBu) contour encompasses land area within
the United States beyond the 16 kilometers portion of the radial, the
entire 3 to 16 kilometers portion of the radial must be included in the
computation of antenna height above average terrain. However, where the
50 uV/m (34 dBu) contour does not so encompass United States land area,
and (i) the entire 3 to 16 kilometers portion of the radial extends over
large bodies of water or over foreign territory, such radial must be
completely omitted from the computation of antenna height above average
terrain, and (ii) where a part of the 3 to 16 kilometers portion of a
radial extends over large bodies of water or foreign territory, only
that part of the radial extending from 3 kilometers to the outermost
portion of land in the United States covered by the radial used must be
used in the computation of antenna height above average terrain.
(3) The profile graph for each radial should be plotted by contour
intervals of from 12 to 30 meters and, where the data permits, at least
50 points of elevation (generally uniformly spaced) should be used for
each radial. In instances of very rugged terrain where the use of
contour intervals of 30 meters would result in several points in a short
distance, 60 or 120 meter contour intervals may be used for such
distances. On the other hand, where the terrain is uniform or gently
sloping the
[[Page 135]]
smallest contour interval indicated on the topographic map should be
used, although only relatively few points may be available. The profile
graph should indicate the topography accurately for each radial, and the
graphs should be plotted with the distance in kilometers as the abscissa
and the elevation in meters above mean sea level as the ordinate. The
profile graphs should indicate the source of the topographical data
used. The graph should also show the elevation of the center of the
radiating system. The graph may be plotted either on rectangular
coordinate paper or on special paper that shows the curvature of the
earth. It is not necessary to take the curvature of the earth into
consideration in this procedure as this factor is taken care of in the
charts showing signal strengths. The average elevation of the 13
kilometer distance between 3 and 16 kilometers from the antenna site
should then be determined from the profile graph for each radial. This
may be obtained by averaging a large number of equally spaced points, by
using a planimeter, or by obtaining the median elevation (that exceeded
for 50% of the distance) in sectors and averaging those values.
(4) Examples of HAAT calculations:
(i) The heights above average terrain on the eight radials are as
follows:
------------------------------------------------------------------------
Meters
------------------------------------------------------------------------
0 deg......................................................... 120
45 deg........................................................ 255
90 deg........................................................ 185
135 deg....................................................... 90
180 deg....................................................... -10
225 deg....................................................... -85
270 deg....................................................... 40
315 deg....................................................... 85
------------------------------------------------------------------------
The antenna height above terrain (defined in Sec. 73.310(a)) is
computed as follows:
(120+255+185+90-10-85+40+85)/8=85 meters.
(ii) Same as paragraph (d)(4)(i) of this section, except the 0 deg.
radial is entirely over sea water. The antenna height above average
terrain is computed as follows (note that the divisor is 7 not 8):
(255+185+90-10-85+40+85)/7=80 meters.
(iii) Same as paragraph (d)(4)(i) of this section, except that only
the first 10 kilometers of the 90 deg. radial are in the United States;
beyond 10 kilometers the 90 deg. radial is in a foreign country. The
height above average terrain of the 3 to 10 kilometer portion of the
90 deg. radial is 105 meters. The antenna height above average terrain
is computed as follows (note that the divisor is 8 not 7.5):
(120+255+105+90-10-85+40+85)/8=75 meters.
(e) In cases where the terrain in one or more directions from the
antenna site departs widely from the average elevation of the 3 to 16
kilometer sector, the prediction method may indicate contour distances
that are different from what may be expected in practice. For example, a
mountain ridge may indicate the practical limit of service although the
prediction method may indicate otherwise. In such cases, the prediction
method should be followed, but a supplemental showing may be made
concerning the contour distances as determined by other means. Such
supplemental showings should describe the procedure used and should
include sample calculations. Maps of predicted coverage should include
both the coverage as predicted by the regular method and as predicted by
a supplemental method. When measurements of area are required, these
should include the area obtained by the regular prediction method and
the area obtained by the supplemental method. In directions where the
terrain is such that antenna heights less than 30 meters for the 3 to 16
kilometer sector are obtained, an assumed height of 30 meters must be
used for the prediction of coverage. However, where the actual contour
distances are critical factors, a supplemental showing of expected
coverage must be included together with a description of the method used
in predicting such coverage. In special cases, the FCC may require
additional information as to terrain and coverage.
(f) The effect of terrain roughness on the predicted field strength
of a signal at points distant from an FM transmitting antenna is assumed
to depend on the magnitude of a terrain roughness factor (h) which, for
a specific propagation path, is determined by the characteristics of a
segment of the terrain
[[Page 136]]
profile for that path 40 kilometers in length located between 10 and 50
kilometers from the antenna. The terrain roughness factor has a value
equal to the distance, in meters, between elevations exceeded by all
points on the profile for 10% and 90% respectively, of the length of the
profile segment. (See Sec. 73.333, Figure 4.)
(g) If the lowest field strength value of interest is initially
predicted to occur over a particular propagation path at a distance that
is less than 50 kilometers from the antenna, the terrain profile segment
used in the determination of terrain roughness factor over that path
must be that included between points 10 kilometers from the transmitter
and such lesser distances. No terrain roughness correction need be
applied when all field strength values of interest are predicted to
occur 10 kilometers or less from the transmitting antenna.
(h) Profile segments prepared for terrain roughness factor
determinations are to be plotted in rectangular coordinates, with no
less than 50 points evenly spaced within the segment using data obtained
from topographic maps with contour intervals of approximately 15 meters
(50 feet) or less if available.
(i) The field strength charts (Sec. 73.333, Figs. 1-1a) were
developed assuming a terrain roughness factor of 50 meters, which is
considered to be representative of average terrain in the United States.
Where the roughness factor for a particular propagation path is found to
depart appreciably from this value, a terrain roughness correction
(F) should be applied to field strength values along this path,
as predicted with the use of these charts. The magnitude and sign of
this correction, for any value of h, may be determined from a
chart included in Sec. 73.333 as Figure 5.
(j) Alternatively, the terrain roughness correction may be computed
using the following formula:
F=1.9-0.03(h)(1+f/300)
Where:
F=terrain roughness correction in dB
k=terrain roughness factor in meters
f=frequency of signal in MHz (MHz)
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, 1082 (47 U.S.C. 154,
155, 303))
[28 FR 13623, Dec. 14, 1963, as amended at 40 FR 27678, July 1, 1975; 48
FR 29507, June 27, 1983; 52 FR 11655, Apr. 10, 1987; 52 FR 37789, Oct.
9, 1987; 57 FR 48333, Oct. 23, 1992; 63 FR 33877, June 22, 1998]
Effective Date Note: At 42 FR 25736, May 19, 1977, the effective
date of Sec. 73.313 paragraphs (i) and (j) was stayed indefinitely.
Sec. 73.314 Field strength measurements.
(a) Except as provided for in Sec. 73.209, FM broadcast stations
shall not be protected from any type of interference or propagation
effect. Persons desiring to submit testimony, evidence or data to the
Commission for the purpose of showing that the technical standards
contained in this subpart do not properly reflect the levels of any
given type of interference or propagation effect may do so only in
appropriate rule making proceedings concerning the amendment of such
technical standards. Persons making field strength measurements for
formal submission to the Commission in rule making proceedings, or
making such measurements upon the request of the Commission, shall
follow the procedure for making and reporting such measurements outlined
in paragraph (b) of this section. In instances where a showing of the
measured level of a signal prevailing over a specific community is
appropriate, the procedure for making and reporting field strength
measurements for this purpose is set forth in paragraph (c) of this
section.
(b) Collection of field strength data for propagation analysis.
(1) Preparation for measurements. (i) On large scale topographic
maps, eight or more radials are drawn from the transmitter location to
the maximum distance at which measurements are to be made, with the
angles included between adjacent radials of approximately equal size.
Radials should be oriented so as to traverse representative types of
terrain. The specific number of radials and their orientation should be
such as to accomplish this objective.
[[Page 137]]
(ii) Each radial is marked, at a point exactly 16 kilometers from
the transmitter and, at greater distances, at successive 3 kilometer
intervals. Where measurements are to be conducted over extremely rugged
terrain, shorter intervals may be used, but all such intervals must be
of equal length. Accessible roads intersecting each radial as nearly as
possible at each 3 kilometer marker are selected. These intersections
are the points on the radial at which measurements are to be made, and
are referred to subsequently as measuring locations. The elevation of
each measuring location should approach the elevation at the
corresponding 3 kilometer marker as nearly as possible.
(2) Measurement procedure. All measurements must be made utilizing a
receiving antenna designed for reception of the horizontally polarized
signal component, elevated 9 meters above the roadbed. At each measuring
location, the following procedure must be used:
(i) The instrument calibration is checked.
(ii) The antenna is elevated to a height of 9 meters.
(iii) The receiving antenna is rotated to determine if the strongest
signal is arriving from the direction of the transmitter.
(iv) The antenna is oriented so that the sector of its response
pattern over which maximum gain is realized is in the direction of the
transmitter.
(v) A mobile run of at least 30 meters is made, that is centered on
the intersection of the radial and the road, and the measured field
strength is continuously recorded on a chart recorder over the length of
the run.
(vi) The actual measuring location is marked exactly on the
topographic map, and a written record, keyed to the specific location,
is made of all factors which may affect the recorded field, such as
topography, height and types of vegetation, buildings, obstacles,
weather, and other local features.
(vii) If, during the test conducted as described in paragraph
(b)(2)(iii) of this section, the strongest signal is found to come from
a direction other than from the transmitter, after the mobile run
prescribed in paragraph (b)(2)(v) of this section is concluded,
additional measurements must be made in a ``cluster'' of at least five
fixed points. At each such point, the field strengths with the antenna
oriented toward the transmitter, and with the antenna oriented so as to
receive the strongest field, are measured and recorded. Generally, all
points should be within 60 meters of the center point of the mobile run.
(viii) If overhead obstacles preclude a mobile run of at least 30
meters, a ``cluster'' of five spot measurements may be made in lieu of
this run. The first measurement in the cluster is identified. Generally,
the locations for other measurements must be within 60 meters of the
location of the first.
(3) Method of reporting measurements. A report of measurements to
the Commission shall be submitted in affidavit form, in triplicate, and
should contain the following information:
(i) Tables of field strength measurements, which, for each measuring
location, set forth the following data:
(A) Distance from the transmitting antenna.
(B) Ground elevation at measuring location.
(C) Date, time of day, and weather.
(D) Median field in dBu for 0 dBk, for mobile run or for cluster, as
well as maximum and minimum measured field strengths.
(E) Notes describing each measuring location.
(ii) U.S. Geological Survey topographic maps, on which is shown the
exact location at which each measurement was made. The original plots
shall be made on maps of the largest available scale. Copies may be
reduced in size for convenient submission to the Commission, but not to
the extent that important detail is lost. The original maps shall be
made available, if requested. If a large number of maps is involved, an
index map should be submitted.
(iii) All information necessary to determine the pertinent
characteristics of the transmitting installation, including frequency,
geographical coordinates of antenna site, rated and actual power output
of transmitter, measured transmission line loss, antenna power gain,
height of antenna above ground,
[[Page 138]]
above mean sea level, and above average terrain. The effective radiated
power should be computed, and horizontal and vertical plane patterns of
the transmitting antenna should be submitted.
(iv) A list of calibrated equipment used in the field strength
survey, which, for each instrument, specifies its manufacturer, type,
serial number and rated accuracy, and the date of its most recent
calibration by the manufacturer, or by a laboratory. Complete details of
any instrument not of standard manufacture shall be submitted.
(v) A detailed description of the calibration of the measuring
equipment, including field strength meters, measuring antenna, and
connecting cable.
(vi) Terrain profiles in each direction in which measurements were
made, drawn on curved earth paper for equivalent 4/3 earth radius, of
the largest available scale.
(c) Collection of field strength data to determine FM broadcast
service in specific communities.
(1) Preparation for measurement. (i) The population (P) of the
community, and its suburbs, if any, is determined by reference to an
appropriate source, e.g., the 1970 U.S. Census tables of population of
cities and urbanized areas.
(ii) The number of locations at which measurements are to be made
shall be at least 15, and shall be approximately equal to 0.1(P)1/
2, if this product is a number greater than 15.
(iii) A rectangular grid, of such size and shape as to encompass the
boundaries of the community is drawn on an accurate map of the
community. The number of line intersections on the grid included within
the boundaries of the community shall be at least equal to the required
number of measuring locations. The position of each intersection on the
community map determines the location at which a measurement shall be
made.
(2) Measurement procedure. All measurements must be made using a
receiving antenna designed for reception of the horizontally polarized
signal component, elevated 9 meters above ground level.
(i) Each measuring location shall be chosen as close as feasible to
a point indicated on the map, as previously prepared, and at as nearly
the same elevation as that point as possible.
(ii) At each measuring location, after equipment calibration and
elevation of the antenna, a check is made to determine whether the
strongest signal arrives from a direction other than from the
transmitter.
(iii) At 20 percent or more of the measuring locations, mobile runs,
as described in paragraph (b)(2) of this section shall be made, with no
less than three such mobile runs in any case. The points at which mobile
measurements are made shall be well separated. Spot measurements may be
made at other measuring points.
(iv) Each actual measuring location is marked exactly on the map of
the community, and suitably keyed. A written record shall be maintained,
describing, for each location, factors which may affect the recorded
field, such as the approximate time of measurement, weather, topography,
overhead wiring, heights and types of vegetation, buildings and other
structures. The orientation, with respect to the measuring location
shall be indicated of objects of such shape and size as to be capable of
causing shadows or reflections. If the strongest signal received was
found to arrive from a direction other than that of the transmitter,
this fact shall be recorded.
(3) Method of reporting measurements. A report of measurements to
the Commission shall be submitted in affidavit form, in triplicate, and
should contain the following information:
(i) A map of the community showing each actual measuring location,
specifically identifying the points at which mobile runs were made.
(ii) A table keyed to the above map, showing the field strength at
each measuring point, reduced to dBu for the actual effective radiated
power of the station. Weather, date, and time of each measurement shall
be indicated.
(iii) Notes describing each measuring location.
(iv) A topographic map of the largest available scale on which are
marked the community and the transmitter site of the station whose
signals have been measured, which includes all areas on or near the
direct path of signal propagation.
[[Page 139]]
(v) Computations of the mean and standard deviation of all measured
field strengths, or a graph on which the distribution of measured field
strength values is plotted.
(vi) A list of calibrated equipment used for the measurements, which
for each instrument, specifies its manufacturer, type, serial number and
rated accuracy, and the date of its most recent calibration by the
manufacturer, or by a laboratory. Complete details of any instrument not
of standard manufacture shall be submitted.
(vii) A detailed description of the procedure employed in the
calibration of the measuring equipment, including field strength meters,
measuring antenna, and connecting cable.
[40 FR 27682, July 1, 1975; 40 FR 28802, July 9, 1975, as amended at 48
FR 29508, June 27, 1983]
Sec. 73.315 FM transmitter location.
(a) The transmitter location shall be chosen so that, on the basis
of the effective radiated power and antenna height above average terrain
employed, a minimum field strength of 70 dB above one uV/m (dBu), or
3.16 mV/m, will be provided over the entire principal community to be
served.
Note: The requirements of paragraph (a) of this section do not apply
to noncommercial educational FM broadcast stations operating on reserved
channels. (Channels 200 through 220)
(b) The transmitter location should be chosen to maximize coverage
to the city of license while minimizing interference. This is normally
accomplished by locating in the least populated area available while
maintaining the provisions of paragraph (a) of this section. In general,
the transmitting antenna of a station should be located in the most
sparsely populated area available at the highest elevation available.
The location of the antenna should be so chosen that line-of-sight can
be obtained from the antenna over the principle city or cities to be
served; in no event should there be a major obstruction in this path.
(c) The transmitting location should be selected so that the 1 mV/m
contour encompasses the urban population within the area to be served.
It is recognized that topography, shape of the desired service area, and
population distribution may make the choice of a transmitter location
difficult. In such cases consideration may be given to the use of a
directional antenna system, although it is generally preferable to
choose a site where a nondirectional antenna may be employed.
(d) In cases of questionable antenna locations it is desirable to
conduct propagation tests to indicate the field strength expected in the
principal city or cities to be served and in other areas, particularly
where severe shadow problems may be expected. In considering
applications proposing the use of such locations, the Commission may
require site tests to be made. Such tests should include measurements
made in accordance with the measurement procedures described in
Sec. 73.314, and full data thereon shall be supplied to the Commission.
The test transmitter should employ an antenna having a height as close
as possible to the proposed antenna height, using a balloon or other
support if necessary and feasible. Information concerning the
authorization of site tests may be obtained from the Commission upon
request.
(e) Cognizance must of course be taken regarding the possible hazard
of the proposed antenna structure to aviation and the proximity of the
proposed site to airports and airways. Procedures and standards with
respect to the Commission's consideration of proposed antenna structures
which will serve as a guide to persons intending to apply for radio
station licenses are contained in Part 17 of this chapter (Construction,
Marking, and Lighting of Antenna Structures).
[28 FR 13623, Dec. 14, 1963, as amended at 41 FR 22943, June 8, 1976; 49
FR 38131, Sept. 27, 1984; 49 FR 45146, Nov. 15, 1984; 51 FR 9965, Mar.
24, 1986; 52 FR 10570, Apr. 2, 1987]
Sec. 73.316 FM antenna systems.
(a) It shall be standard to employ horizontal polarization; however,
circular or elliptical polarization may be employed if desired.
Clockwise or counterclockwise rotation may be used. The supplemental
vertically polarized effective radiated power required for circular or
elliptical polarization shall in
[[Page 140]]
no event exceed the effective radiated power authorized.
(b) Directional antennas. A directional antenna is an antenna that
is designed or altered for the purpose of obtaining a non-circular
radiation pattern.
(1) Applications for the use of directional antennas that propose a
ratio of maximum to minimum radiation in the horizontal plane of more
than 15 dB will not be accepted.
(2) Directional antennas used to protect short-spaced stations
pursuant to Sec. 73.213 or Sec. 73.215 of the rules, that have a
radiation pattern which varies more than 2 dB per 10 degrees of azimuth
will not be authorized.
(c) Applications for directional antennas. (1) Applications for
construction permit proposing the use of directional antenna systems
must include a tabulation of the composite antenna pattern for the
proposed directional antenna. A value of 1.0 must be used to correspond
to the direction of maximum radiation. The pattern must be tabulated
such that 0 deg. corresponds to the direction of maximum radiation or
alternatively, in the case of an asymmetrical antenna pattern, the
pattern must be tabulated such that 0 deg. corresponds to the actual
azimuth with respect to true North. In the case of a composite antenna
composed of two or more individual antennas, the pattern required is
that for the composite antenna, not the patterns for each of the
individual antennas. Applications must include valuations tabulated at
intervals of not greater than ten (10) degrees. In addition, tabulated
values of all maximas and minimas, with their corresponding azimuths,
must be submitted.
(2) Applications for license upon completion of antenna construction
must include the following:
(i) A complete description of the antenna system, including the
manufacturer and model number of the directional antenna. It is not
sufficient to label the antenna with only a generic term such as
``dipole.'' In the case of individually designed antennas with no model
number, or in the case of a composite antenna composed of two or more
individual antennas, the antenna must be described as a ``custom'' or
``composite'' antenna, as appropriate. A full description of the design
of the antenna must also be submitted.
(ii) A plot of the composite pattern of the directional antenna. A
value of 1.0 must be used to correspond to the direction of maximum
radiation. The plot of the pattern must be oriented such that 0 deg.
corresponds to the direction of maximum radiation or alternatively, in
the case of an asymmetrical antenna pattern, the plot must be oriented
such that 0 deg. corresponds to the actual azimuth with respect to true
North. The horizontal plane pattern must be plotted to the largest scale
possible on unglazed letter-size polar coordinate paper (main engraving
approximately 18 cm x 25 cm (7 inches x 10 inches)) using only scale
divisions and subdivisions of 1, 2, 2.5, or 5 times 10-nth. Values of
field strength less than 10% of the maximum field strength plotted on
that pattern must be shown on an enlarged scale. In the case of a
composite antenna composed of two or more individual antennas, the
composite antenna pattern should be provided, and not the pattern for
each of the individual antennas.
(iii) A tabulation of the measured relative field pattern required
in paragraph (c)(1) of this section. The tabulation must use the same
zero degree reference as the plotted pattern, and must contain values
for at least every 10 degrees. Sufficient vertical patterns to indicate
clearly the radiation characteristics of the antenna above and below the
horizontal plane. Complete information and patterns must be provided for
angles of -10 deg. from the horizontal plane and sufficient additional
information must be included on that portion of the pattern lying
between +10 deg. and the zenith and -10 deg. and the nadir, to
conclusively demonstrate the absence of undesirable lobes in these
areas. The vertical plane pattern must be plotted on rectangular
coordinate paper with reference to the horizontal plane. In the case of
a composite antenna composed of two or more individual antennas, the
composite antenna pattern should be used, and not the pattern for each
of the individual antennas.
(iv) A statement that the antenna is mounted on the top of an
antenna tower recommended by the antenna
[[Page 141]]
manufacturer, or is side-mounted on a particular type of antenna tower
in accordance with specific instructions provided by the antenna
manufacturer.
(v) A statement that the directional antenna is not mounted on the
top of an antenna tower which includes a top-mounted platform larger
than the nominal cross-sectional area of the tower in the horizontal
plane.
(vi) A statement that no other antenna of any type is mounted on the
same tower level as a directional antenna, and that no antenna of any
type is mounted within any horizontal or vertical distance specified by
the antenna manufacturer as being necessary for proper directional
operation.
(vii) A statement from an engineer listing such individual
engineer's qualifications and certifying that the antenna has been
installed pursuant to the manufacturer's instructions.
(viii) A statement from a licensed surveyor that the installed
antenna is properly oriented.
(ix)(A) For a station authorized pursuant to Sec. 73.215 or Sec.
Sec. 73.509, a showing that the root mean square (RMS) of the measured
composite antenna pattern (encompassing both the horizontally and
vertically polarized radiation components (in relative field)) is at
least 85 percent of the RMS of the authorized composite directional
antenna pattern (in relative field). The RMS value, for a composite
antenna pattern specified in relative field values, may be determined
from the following formula:
RMS=the square root of:
[(relative field value 1)\2\ + (relative field value 2)\2\ +....+ (last
relative field value)\2\]
total number of relative field values
(B) where the relative field values are taken from at least 36
evenly spaced radials for the entire 360 degrees of azimuth. The
application for license must also demonstrate that coverage of the
community of license by the 70 dBu contour is maintained for stations
authorized pursuant to Sec. 73.215 on Channels 221 through 300, as
required by Sec. 73.315(a), while noncommercial educational stations
operating on Channels 201 through 220 must show that the 60 dBu contour
covers at least a portion of the community of license.
(d) Applications proposing the use of FM transmitting antennas in
the immediate vicinity (i.e. 60 meters or less) of other FM or TV
broadcast antennas must include a showing as to the expected effect, if
any, of such approximate operation.
(e) Where an FM licensee or permittee proposes to mount its antenna
on an AM antenna tower, or locate within 3.2 km of an AM antenna tower,
the FM licensee or permittee must comply with Sec. 73.1692.
[28 FR 13623, Dec. 14, 1963, as amended at 34 FR 14222, Sept. 10, 1969;
37 FR 25841, Dec. 5, 1972; 43 FR 53738, Nov. 17, 1978; 48 FR 29508, June
27, 1983; 51 FR 17028, May 8, 1986; 54 FR 9804, Mar. 8, 1989; 56 FR
57294, Nov. 8, 1991; 62 FR 51058, Sept. 30, 1997; 63 FR 70047, Dec. 18,
1998]
Sec. 73.317 FM transmission system requirements.
(a) FM broadcast stations employing transmitters authorized after
January 1, 1960, must maintain the bandwidth occupied by their emissions
in accordance with the specification detailed below. FM broadcast
stations employing transmitters installed or type accepted before
January 1, 1960, must achieve the highest degree of compliance with
these specifications practicable with their existing equipment. In
either case, should harmful interference to other authorized stations
occur, the licensee shall correct the problem promptly or cease
operation.
(b) Any emission appearing on a frequency removed from the carrier
by between 120 kHz and 240 kHz inclusive must be attenuated at least 25
dB below the level of the unmodulated carrier. Compliance with this
requirement will be deemed to show the occupied bandwidth to be 240 kHz
or less.
(c) Any emission appearing on a frequency removed from the carrier
by more than 240 kHz and up to and including 600 kHz must be attenuated
at least 35 dB below the level of the unmodulated carrier.
(d) Any emission appearing on a frequency removed from the carrier
by more than 600 kHz must be attenuated at least 43 + 10
Log10 (Power, in watts) dB below the level of the unmodulated
carrier, or 80 dB, whichever is the lesser attenuation.
[[Page 142]]
(e) Preemphasis shall not be greater than the impedance-frequency
characteristics of a series inductance resistance network having a time
constant of 75 microseconds. (See upper curve of Figure 2 of
Sec. 73.333.)
[51 FR 17028, May 8, 1986]
Sec. 73.318 FM blanketing interference.
Areas adjacent to the transmitting antenna that receive a signal
with a strength of 115 dBu (562 mV/m) or greater will be assumed to be
blanketed. In determining the blanketed area, the 115 dBu contour is
determined by calculating the inverse distance field using the effective
radiated power of the maximum radiated lobe of the antenna without
considering its vertical radiation pattern or height. For directional
antennas, the effective radiated power in the pertinent bearing shall be
used.
(a) The distance to the 115 dBu contour is determined using the
following equation:
D (in kilometers)=0.394 P
D (in miles)=0.245 P
Where P is the maximum effective radiated power (ERP), measured in
kilowatts, of the maximum radiated lobe.
(b) After January 1, 1985, permittees or licensees who either (1)
commence program tests, or (2) replace their antennas, or (3) request
facilities modifications and are issued a new construction permit must
satisfy all complaints of blanketing interference which are received by
the station during a one year period. The period begins with the
commencement of program tests, or commencement of programming utilizing
the new antenna. Resolution of complaints shall be at no cost to the
complainant. These requirements specifically do not include interference
complaints resulting from malfunctioning or mistuned receivers,
improperly installed antenna systems, or the use of high gain antennas
or antenna booster amplifiers. Mobile receivers and non-RF devices such
as tape recorders or hi-fi amplifiers (phonographs) are also excluded.
(c) A permittee collocating with one or more existing stations and
beginning program tests on or after January 1, 1985, must assume full
financial responsibility for remedying new complaints of blanketing
interference for a period of one year. Two or more permittees that
concurrently collocate on or after January 1, 1985, shall assume shared
responsibility for remedying blanketing complaints within the blanketing
area unless an offending station can be readily determined and then that
station shall assume full financial responsibility.
(d) Following the one year period of full financial obligation to
satisfy blanketing complaints, licensees shall provide technical
information or assistance to complainants on remedies for blanketing
interference.
[28 FR 13623, Dec. 14, 1963, as amended at 52 FR 25866, July 9, 1987]
Sec. 73.319 FM multiplex subcarrier technical standards.
(a) The technical specifications in this Section apply to all
transmissions of FM multiplex subcarriers except those used for
stereophonic sound broadcasts under the provisions of Sec. 73.322.
(b) Modulation. Any form of modulation may be used for subcarrier
operation.
(c) Subcarrier baseband. (1) During monophonic program
transmissions, multiplex subcarriers and their significant sidebands
must be within the range of 20 kHz to 99 kHz.
(2) During stereophonic sound program transmissions (see
Sec. 73.322), multiplex subcarriers and their significant sidebands must
be within the range of 53 kHz to 99 kHz.
(3) During periods when broadcast programs are not being
transmitted, multiplex subcarriers and their significant sidebands must
be within the range of 20 kHz to 99 kHz.
(d) Subcarrier injection.
(1) During monophonic program transmissions, modulation of the
carrier by the arithmetic sum of all subcarriers may not exceed 30%
referenced to 75 kHz modulation deviation. However, the modulation of
the carrier by the arithmetic sum of all subcarriers above 75 kHz may
not modulate the carrier by more than 10%.
[[Page 143]]
(2) During stereophonic program transmissions, modulation of the
carrier by the arithmetic sum of all subcarriers may not exceed 20%
referenced to 75 kHz modulation deviation. However, the modulation of
the carrier by the arithmetic sum of all subcarriers above 75 kHz may
not modulate the carrier by more than 10%.
(3) During periods when no broadcast program service is transmitted,
modulation of the carrier by the arithmetic sum of all subcarriers may
not exceed 30% referenced to 75 kHz modulation deviation. However, the
modulation of the carrier by the arithmetic sum of all subcarriers above
75 kHz may not modulate the carrier by more than 10%.
(4) Total modulation of the carrier wave during transmission of
multiplex subcarriers used for subsidiary communications services must
comply with the provisions Sec. 73.1570(b).
(e) Subcarrier generators may be installed and used with a type
accepted FM broadcast transmitter without specific authorization from
the FCC provided the generator can be connected to the transmitter
without requiring any mechanical or electrical modifications in the
transmitter FM exciter circuits.
(f) Stations installing multiplex subcarrier transmitting equipment
must ensure the proper suppression of spurious or harmonic radiations.
See Secs. 73.317, 73.1590 and 73.1690. If the subcarrier operation
causes the station's transmissions not to comply with the technical
provisions for FM broadcast stations or causes harmful interference to
other communication services, the licensee or permittee must correct the
problem promptly or cease operation. The licensee may be required to
verify the corrective measures with supporting data. Such data must be
retained at the station and be made available to the FCC upon request.
[48 FR 28455, June 22, 1983, as amended at 48 FR 37216, Aug. 17, 1983;
49 FR 15080, Apr. 17, 1984; 49 FR 38131, Sept. 27, 1984; 50 FR 1534,
Jan. 11, 1985; 51 FR 17029, May 8, 1986; 57 FR 48333, Oct. 23, 1992]
Sec. 73.322 FM stereophonic sound transmission standards.
(a) An FM broadcast station shall not use 19 kHz 20 Hz,
except as the stereophonic pilot frequency in a transmission system
meeting the following parameters:
(1) The modulating signal for the main channel consists of the sum
of the right and left signals.
(2) The pilot subcarrier at 19 kHz 2 Hz, must frequency
modulate the main carrier between the limits of 8 and 10 percent.
(3) One stereophonic subcarrier must be the second harmonic of the
pilot subcarrier (i.e. 38 kHz) and must cross the time axis with a
positive slope simultaneously with each crossing of the time axis by the
pilot subcarrier. Additional stereophomic subcarriers are not precluded.
(4) Double sideband, suppressed-carrier, amplitude modulation of the
stereophonic subcarrier at 38 kHz must be used.
(5) The stereophonic subcarrier at 38 kHz must be suppressed to a
level less than 1% modulation of the main carrier.
(6) The modulating signal for the required stereophonic subcarrier
must be equal to the difference of the left and right signals.
(7) The following modulation levels apply:
(i) When a signal exists in only one channel of a two channel
(biphonic) sound transmission, modulation of the carrier by audio
components within the baseband range of 50 Hz to 15 kHz shall not exceed
45% and modulation of the carrier by the sum of the amplitude modulated
subcarrier in the baseband range of 23 kHz to 53 kHz shall not exceed
45%.
(ii) When a signal exists in only one channel of a stereophonic
sound transmission having more than one stereophonic subcarrier in the
baseband, the modulation of the carrier by audio components within the
audio baseband range of 23 kHz to 99 kHz shall not exceed 53% with total
modulation not to exceed 90%.
(b) Stations not transmitting stereo with the method described in
(a), must limit the main carrier deviation caused by any modulating
signals occupying the band 19 kHz 20 Hz to 125 Hz.
(c) All stations, regardless of the stereophonic transmission system
used, must not exceed the maximum
[[Page 144]]
modulation limits specified in Sec. 73.1570(b)(2). Stations not using
the method described in (a), must limit the modulation of the carrier by
audio components within the audio baseband range of 23 kHz to 99 kHz to
not exceed 53%.
[51 FR 17029, May 8, 1986]
Sec. 73.333 Engineering charts.
This section consists of the following Figures 1, 1a, 2, and slider
4 and 5.
Note: The figures reproduced herein, due to their small scale, are
not to be used in connection with material submitted to the F.C.C.
[[Page 145]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.085
[[Page 146]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.086
[[Page 147]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.087
[[Page 148]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.088
[[Page 149]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.089
[[Page 150]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.090
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, 1082 (47 U.S.C. 154,
155, 303))
[28 FR 13623, Dec. 14, 1963, as amended at 35 FR 2591, Feb. 5, 1970; 40
FR 27679, July 1, 1975; 45 FR 28141, Apr. 28, 1980; 48 FR 29508, June
27, 1983; 49 FR 19670, May 9, 1984]
Effective Date Note: At 42 FR 25736, May 19, 1977, the effective
date of Figures 4 and 5 was stayed indefinitely.
[[Page 151]]
Subpart C--Noncommercial Educational FM Broadcast Stations
Sec. 73.501 Channels available for assignment.
(a) The following frequencies, except as provided in paragraph (b)
of this section, are available for noncommercial educational FM
broadcasting:
------------------------------------------------------------------------
Channel
Frequency (MHz) No.
------------------------------------------------------------------------
87.9........................................................ \1\ 200
88.1........................................................ 201
88.3........................................................ 202
88.5........................................................ 203
88.7........................................................ 204
88.9........................................................ 205
89.1........................................................ \2\ 206
89.3........................................................ 207
89.5........................................................ 208
89.7........................................................ 209
89.9........................................................ 210
90.1........................................................ 211
90.3........................................................ 212
90.5........................................................ 213
90.7........................................................ 214
90.9........................................................ 215
91.1........................................................ 216
91.3........................................................ 217
91.5........................................................ 218
91.7........................................................ 219
91.9........................................................ 220
------------------------------------------------------------------------
\1\ The frequency 87.9 MHz, Channel 200, is available only for use of
existing Class D stations required to change frequency. It is
available only on a noninterference basis with respect to TV Channel 6
stations and adjacent channel noncommercial educational FM stations.
It is not available at all within 402 kilometers (250 miles) of Canada
and 320 kilometers (199 miles) of Mexico. The specific standards
governing its use are contained in Sec. 73.512.
\2\ The frequency 89.1 MHz, Channel 206, in the New York City
metropolitan area, is reserved for the use of the United Nations with
the equivalent of an antenna height of 150 meters (492 feet) above
average terrain and effective radiated power of 20 kW and the
Commission will make no assignments which would cause objectionable
interference with such use.
(b) In Alaska, FM broadcast stations operating on Channels 200-220
(87.9-91.9 MHz) shall not cause harmful interference to and must accept
interference from non-Government fixed operations authorized prior to
January 1, 1982.
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, 1082 (47 U.S.C. 154,
155, 303))
[43 FR 39715, Sept. 6, 1978, as amended at 47 FR 30068, July 12, 1982;
52 FR 43765, Nov. 16, 1987; 58 FR 44950, Aug. 25, 1993]
Sec. 73.503 Licensing requirements and service.
The operation of, and the service furnished by noncommercial
educational FM broadcast stations shall be governed by the following:
(a) A noncommercial educational FM broadcast station will be
licensed only to a nonprofit educational organization and upon showing
that the station will be used for the advancement of an educational
program.
(1) In determining the eligibility of publicly supported educational
organizations, the accreditation of their respective state departments
of education shall be taken into consideration.
(2) In determining the eligibility of privately controlled
educational organizations, the accreditation of state departments of
education and/or recognized regional and national educational
accrediting organizations shall be taken into consideration.
(b) Each station may transmit programs directed to specific schools
in a system or systems for use in connection with the regular courses as
well as routine and administrative material pertaining thereto and may
transmit educational, cultural, and entertainment programs to the
public.
(c) A noncommercial educational FM broadcast station may broadcast
programs produced by, or at the expense of, or furnished by persons
other than the licensee, if no other consideration than the furnishing
of the program and the costs incidental to its production and broadcast
are received by the licensee. The payment of line charges by another
station network, or someone other than the licensee of a noncommercial
educational FM broadcast station, or general contributions to the
operating costs of a station, shall not be considered as being
prohibited by this paragraph.
(d) Each station shall furnish a nonprofit and noncommercial
broadcast service. Noncommercial educational FM broadcast stations are
subject to the provisions of Sec. 73.1212 to the extent they are
applicable to the broadcast of programs produced by, or at the expense
of, or furnished by others. No promotional announcement on behalf of for
profit entities shall be broadcast at any time in exchange for the
receipt, in whole or in part, of consideration to the licensee, its
principals, or employees. However, acknowledgements of
[[Page 152]]
contributions can be made. The scheduling of any announcements and
acknowledgements may not interrupt regular programming.
(e) Mutually exclusive applications for noncommercial educational
radio stations operating on reserved channels will be resolved pursuant
to the point system in subpart K.
Note to Sec. 73.503: Commission interpretation on this rule,
including the acceptable form of acknowledgements, may be found in the
Second Report and Order in Docket No. 21136 (Commission Policy
Concerning the Noncommercial Nature of Educational Broadcast Stations),
86 FCC 2d 141 (1981); the Memorandum Opinion and Order in Docket No.
21136, 90 FCC 2d 895 (1982), and the Memorandum Opinion and Order in
Docket 21136, 97 FCC 2d 255 (1984). See also, ``Commission Policy
Concerning the Noncommercial Nature of Educational Broadcast Stations,''
Public Notice, 7 FCC Rcd 827 (1992), which can be retrieved through the
Internet at http://www.fcc.gov/mmb/asd/nature.html.
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, 1082 (47 U.S.C. 154,
155, 303))
[28 FR 13651, Dec. 14, 1963, as amended at 35 FR 7558, May 15, 1970; 47
FR 36178, Aug. 19, 1982; 49 FR 29069, July 18, 1984; 63 FR 33877, June
22, 1998; 65 FR 36378, June 8, 2000]
Sec. 73.504 Channel assignments in the Mexican border area.
(a) NCE-FM stations within 199 miles (320 km) of the United States-
Mexican border shall comply with the separation requirements and other
provisions of the ``Agreement between the United States of America and
the United Mexican States Concerning Frequency Modulation Broadcasting
in the 88 to 108 MHz Band'' as amended.
(b) Applicants for noncommercial educational FM stations within 199
miles (320 km) of the United States-Mexican border shall propose at
least Class A minimum facilities (see Sec. 73.211(a)). However, existing
Class D noncommercial educational stations may apply to change frequency
within the educational portion of the FM band in accordance with the
requirements set forth in Sec. 73.512.
(c) Section 73.208 of this chapter shall be complied with as to the
determination of reference points and distance computations used in
applications for new or changed facilities. However, if it is necessary
to consider a Mexican channel assignment or authorization, the
computation of distance will be determined as follows: if a transmitter
site has been established, on the basis of the coordinates of the site;
if a transmitter site has not been established, on the basis of the
reference coordinates of the community, town, or city.
[52 FR 43765, Nov. 16, 1987]
Sec. 73.505 Zones.
For the purpose of assignment of noncommercial educational FM
stations, the United States is divided into three zones, Zone I, Zone I-
A, and Zone II, having the boundaries specified in Sec. 73.205.
[42 FR 36828, July 18, 1977]
Sec. 73.506 Classes of noncommercial educational FM stations and channels.
(a) Noncommercial educational stations operating on the channels
specified in Sec. 73.501 are divided into the following classes:
(1) A Class D educational station is one operating with no more than
10 watts transmitter power output.
(2) A Class D educational (secondary) station is one operating with
no more than 10 watts transmitter power output in accordance with the
terms of Sec. 73.512 or which has elected to follow these requirements
before they become applicable under the terms of Sec. 73.512.
(3) Noncommercial educational FM (NCE-FM) stations with more than 10
watts transmitter power output are classified as Class A, B1, B, C3, C2,
C1, or C depending on the station's effective radiated power and antenna
height above average terrain, and on the zone in which the station's
transmitter is located, on the same basis as set forth in Secs. 73.210
and 73.211 for commercial stations.
(b) Any noncommercial educational station except Class D may be
assigned to any of the channels listed in Sec. 73.501. Class D
noncommercial educational FM stations applied for or authorized prior to
June 1, 1980, may continue to
[[Page 153]]
operate on their authorized channels subject to the provisions of
Sec. 73.512.
[43 FR 39715, Sept. 6, 1978, as amended at 49 FR 10264, Mar. 20, 1984;
52 FR 47569, Dec. 15, 1987; 54 FR 16367, Apr. 24, 1989; 54 FR 19374, May
5, 1989]
Sec. 73.507 Minimum distance separations between stations.
(a) Minimum distance separations. No application for a new station,
or change in channel or transmitter site or increase in facilities of an
existing station, will be granted unless the proposed facilities will be
located so as to meet the adjacent channel distance separations
specified in Sec. 73.207(a) for the class of station involved with
respect to assignment on Channels 221, 222, and 223 listed in
Sec. 73.201 (except where in the case of an existing station the
proposed facilities fall within the provisions of Sec. 73.207(b)), or
where a Class D station is changing frequency to comply with the
requirements of Sec. 73.512.
(b) Stations authorized as of September 10, 1962, which do not meet
the requirements of paragraph (a) of this section and Sec. 73.511, may
continue to operate as authorized; but any application to change
facilities will be subject to the provisions of this section.
(c)(1) Stations separated in frequency by 10.6 or 10.8 MHz (53 or 54
channels) from allotments or assignments on non-reserved channels will
not be authorized unless they conform to the separations in Table A
given in Sec. 73.207.
(2) Under the United States-Mexican FM Broadcasting Agreement, for
stations and assignments differing in frequency by 10.6 to 10.8 MHz (53
or 54 channels), U.S. noncommercial educational FM allotments and
assignments must meet the separations given in Table C of Sec. 73.207 to
Mexican allotments or assignments in the border area.
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, 1082 (47 U.S.C. 154,
155, 303))
[42 FR 36828, July 18, 1977, as amended at 43 FR 39716, Sept. 6, 1978;
44 FR 65764, Nov. 15, 1979; 49 FR 10264, Mar. 20, 1984; 49 FR 19670, May
9, 1984]
Sec. 73.508 Standards of good engineering practice.
(a) All noncommercial educational stations and LPFM stations
operating with more than 10 watts transmitter power output shall be
subject to all of the provisions of the FM Technical Standards contained
in subpart B of this part. Class D educational stations and LPFM
stations operating with 10 watts or less transmitter output power shall
be subject to the definitions contained in Sec. 73.310, and also to
those other provisions of the FM Technical Standards which are
specifically made applicable to them by the provisions of this subpart.
(b) The transmitter and associated transmitting equipment of each
noncommercial educational FM station and LPFM station licensed for
transmitter power output above 10 watts must be designed, constructed
and operated in accordance with Sec. 73.317.
(c) The transmitter and associated transmitting equipment of each
noncommercial educational FM station licensed for transmitter power
output of 10 watts or less, although not required to meet all
requirements of Sec. 73.317, must be constructed with the safety
provisions of the current national electrical code as approved by the
American National Standards Institute. These stations must be operated,
tuned, and adjusted so that emissions are not radiated outside the
authorized band causing or which are capable of causing interference to
the communications of other stations. The audio distortion, audio
frequency range, carrier hum, noise level, and other essential phases of
the operation which control the external effects, must be at all times
capable of providing satisfactory broadcast service. Studio equipment
properly covered by an underwriter's certificate will be considered as
satisfying safety requirements.
[65 FR 7640, Feb. 15, 2000]
Sec. 73.509 Prohibited overlap.
(a) An application for a new or modified NCE-FM station other than a
Class D (secondary) station will not be accepted if the proposed
operation would involve overlap of signal
[[Page 154]]
strength contours with any other station licensed by the Commission and
operating in the reserved band (Channels 200-220, inclusive) as set
forth below:
------------------------------------------------------------------------
Contour of Contour of other
Frequency separation proposed station station
------------------------------------------------------------------------
Co-channel...................... 0.1mV/m (40 dBu).. 1 mV/m (60 dBu).
1 mV/m (60 dBu)... 0.1 mV/m (40 dBu).
200 kHz......................... 0.5 mV/m (54 dBu). 1 mV/m (60 dBu).
1 mV/m (60 dBu)... 0.5 mV/m (54 dBu).
400 kHz......................... 10 mV/m (80 dBu).. 1 mV/m (60 dBu).
1 mV/m (60 dBu)... 10 mV/m (80 dBu).
600 kHz......................... 100 mV/m (100 dBu) 1 mV/m (60 dBu).
1 mV/m (60 dBu)... 100 mV/m (100
dBu).
------------------------------------------------------------------------
(b) An application by a Class D (secondary) station, other than an
application to change class, will not be accepted if the proposed
operation would involve overlap of signal strength contours with any
other station as set forth below:
------------------------------------------------------------------------
Contour of Contour of any
Frequency separation proposed station other station
------------------------------------------------------------------------
Co-channel...................... 0.1 mV/m (40 dBu). 1 mV/m (60 dBu).
200 kHz......................... 0.5 mV/m (54 dBu). 1 mV/m (60 dBu).
400 kHz......................... 10 mV/m (80 dBu).. 1 mV/m (60 dBu).
600 kHz......................... 100 mV/m (100 dBu) 1 mV/m (60 dBu).
------------------------------------------------------------------------
(c) The following standards must be used to compute the distances to
the pertinent contours:
(1) The distance of the 60 dBu (1 mV/m) contours are to be computed
using Figure 1 of Sec. 73.333 [F(50,50) curves] of this part.
(2) The distance to the other contours are to be computed using
Figure 1a of Sec. 73.333 [F(50,10) curves]. In the event that the
distance to the contour is below 16 kilometers (approximately 10 miles),
and therefore not covered by Figure 1a, curves in Figure 1 must be used.
(3) The effective radiated power (ERP) that is the maximum ERP for
any elevation plane on any bearing will be used.
(d) An application for a change (other than a change in channel) in
the facilities of a NCE-FM broadcast station will be accepted even
though overlap of signal strength contours, as specified in paragraphs
(a) and (b) of this section, would occur with another station in an area
where such overlap does not already exists, if:
(1) The total area of overlap with that station would not be
increased;
(2) The area of overlap with any other station would not increase;
(3) The area of overlap does not move significantly closer to the
station receiving the overlap; and,
(4) No area of overlap would be created with any station with which
the overlap does not now exist.
(e) The provisions of this section concerning prohibited overlap
will not apply where the area of such overlap lies entirely over water.
[50 FR 27962, July 9, 1985, as amended at 52 FR 43765, Nov. 16, 1987]
Sec. 73.510 Antenna systems.
(a) All noncommercial educational stations operating with more than
10 watts transmitter output power shall be subject to the provisions of
Sec. 73.316 concerning antenna systems contained in subpart B of this
part.
(b) Directional antenna. No application for a construction permit of
a new station, or change in channel, or change in an existing facility
on the same channel will be accepted for filing if a directional antenna
with a maximum-to-minimum ratio of more than 15 dB is proposed.
[42 FR 36829, July 18, 1977]
Sec. 73.511 Power and antenna height requirements.
(a) No new noncommercial educational station will be authorized with
less power than minimum power requirements for commercial Class A
facilities. (See Sec. 73.211.)
(b) No new noncommercial educational FM station will be authorized
with facilities greater than Class B in Zones I and I-A or Class C in
Zone II, as defined in Sec. 73.211.
(c) Stations licensed before December 31, 1984, and operating above
50 kW in Zones I and I-A, and above 100 kW and in Zone II may continue
to operate as authorized.
[50 FR 27963, July 9, 1985, as amended at 50 FR 31379, Aug. 2, 1985; 54
FR 3602, Jan. 25, 1989]
[[Page 155]]
Sec. 73.512 Special procedures applicable to Class D noncommercial educational stations.
(a) All Class D stations seeking renewal of license for any term
expiring June 1, 1980, or thereafter shall comply with the requirements
set forth below and shall simultaneously file an application on FCC Form
340, containing full information regarding such compliance with the
provisions set forth below.
(1) To the extent possible, each applicant shall select a commercial
FM channel on which it proposes to operate in lieu of the station's
present channel. The station may select any commercial channel provided
no objectionable interference, as set forth in Sec. 73.509(b), would be
caused. The application shall include the same engineering information
as is required to change the frequency of an existing station and any
other information necessary to establish the fact that objectionable
interference would not result. If no commerical channel is available
where the station could operate without causing such interference, the
application shall set forth the basis upon which this conclusion was
reached.
(2) If a commercial channel is unavailable, to the extent possible
each applicant should propose operation on Channel 200 (87.9 MHz) unless
the station would be within 402 kilometers (250 miles) of the Canadian
border or 320 kilometers (199 miles) of the Mexican border or would
cause interference to an FM station operating on Channels 201, 202, or
203 or to TV Channel 6, as provided in Sec. 73.509.
(3) If a channel is not available under either paragraph (a) (1) or
(2) of this section, the renewal applicant shall study all 20
noncommercial educational FM channels and shall propose operation on the
channel which would cause the least preclusion to the establishment of
new stations or increases in power by existing stations. Full
information regarding the basis for the selection should be provided.
(b) At any time before the requirements of paragraph (a) become
effective, any existing Class D station may file a construction permit
application on FCC Form 340 to change channel in the manner described
above which shall be subject to the same requirements. In either case,
any license granted shall specify that the station's license is for a
Class D (secondary) station.
(c) Except in Alaska, no new Class D applications nor major change
applications by existing Class D stations are acceptable for filing
except by existing Class D stations seeking to change frequency. Upon
the grant of such application, the station shall become a Class D
(secondary) station.
(d) Class D noncommercial educational (secondary) stations (see
Sec. 73.506(a)(2)) will be permitted to continue to operate only so long
as no interference (as defined in Sec. 73.509) is caused to any TV or
commercial FM broadcast stations. In the event that the Class D
(secondary) station would cause interference to a TV or commercial FM
broadcast station after that Class D (secondary) station is authorized,
the Class D (secondary) station must cease operation when program tests
for the TV or commercial FM broadcast station commence. The Class D
(secondary) station may apply for a construction permit (see
Sec. 73.3533) to change to another frequency or antenna site where it
would not cause interference (as defined in Sec. 73.509). If the Class D
(secondary) station must cease operation before the construction permit
is granted, an application for temporary authorization (pursuant to
Sec. 73.3542) to operate with the proposed facilities may be submitted;
where appropriate, such temporary authorization can be granted.
[43 FR 39716, Sept. 6, 1978, as amended at 44 FR 48226, Aug. 17, 1979;
47 FR 28388, June 30, 1982; 50 FR 8326, Mar. 1, 1985]
Sec. 73.513 Noncommercial educational FM stations operating on unreserved channels.
(a) Noncommercial educational FM stations other than Class D
(secondary) which operate on Channels 221 through 300 but which comply
with Sec. 73.503 as to licensing requirements and the nature of the
service rendered, must comply with the provisions of the following
sections of subpart B: Secs. 73.201 through 73.213 (Classification of FM
Broadcast Stations and Allocations of Frequencies) and such other
sections of
[[Page 156]]
subpart B as are made specially applicable by the provisions of this
subpart C. Stations in Alaska authorized before August 11, 1982, using
Channels 261-300 need not meet the minimum effective radiated power
requirement specified in Sec. 73.211(a). In all other respects, stations
operating on Channels 221 through 300 are to be governed by the
provisions of this subpart and not subpart B.
(b) When a noncommercial educational applicant is among mutually
exclusive applications for an unreserved FM channel, the mutually
exclusive applications will be considered pursuant to Subpart I--
Competitive Bidding Procedures and not Subpart K--Application and
Selection Procedures On Reserved Noncommercial Educational Channels.
[47 FR 30068, July 12, 1982, as amended at 65 FR 36378, June 8, 2000]
Sec. 73.514 Protection from interference.
Permittees and licensees of NCE FM stations are not protected from
interference which may be created by the grant of a new LPFM station or
of authority to modify an existing LPFM station, except in instances
where the NCE FM station would receive interference from an LPFM station
within the 3.16 mV/m (70 dBu) contour.
[65 FR 7640, Feb. 15, 2000]
Sec. 73.525 TV Channel 6 protection.
The provisions of this section apply to all applications for
construction permits for new or modified facilities for a NCE-FM station
on Channels 200-220 unless the application is accompanied by a written
agreement between the NCE-FM applicant and each affected TV Channel 6
broadcast station concurring with the proposed NCE-FM facilities.
(a) Affected TV Channel 6 Station. (1) An affected TV Channel 6
station is a TV broadcast station which is authorized to operate on
Channel 6 that is located within the following distances of a NCE-FM
station operating on Channels 201-220:
Table A
------------------------------------------------------------------------
Distance Distance
NCE-FM channel (kilometers) NCE-FM channel (kilometers)
------------------------------------------------------------------------
201 265 211 196
202 257 212 195
203 246 213 193
204 235 214 187
205 225 215 180
206 211 216 177
207 196 217 174
208 196 218 166
209 196 219 159
210 196 220 154
------------------------------------------------------------------------
(2) Where a NCE-FM application has been accepted for filing or
granted, the subsequent acceptance of an application filed by a relevant
TV Channel 6 station will not require revision of the pending NCE-FM
application or the FM station's authorized facilities, unless the
provisions of paragraph (e)(3) of this section for TV translator or
satellite stations apply.
(b) Existing NCE-FM Stations. (1) A NCE-FM station license
authorized to operate on channels 201-220 as of December 31, 1984, or a
permittee, granted a construction permit for a NCE-FM station as of
December 31, 1984, are not subject to this section unless they propose
either:
(i) To make changes in operating facilities or location which will
increase predicted interference as calculated under paragraph (e) of
this section to TV Channel 6 reception in any direction; or,
(ii) To increase its ratio of vertically polarized to horizontally
polarized transmissions.
(2) Applicants must comply with the provision of paragraphs (c) or
(d) of this section unless the application for modification demonstrates
that, for each person predicted to receive new interference as a result
of the change, existing predicted interference to two person will be
eliminated. Persons predicted to receive new interference are those
located outside the area predicted to receive interference from the
station's currently authorized facilities (``existing predicted
interference area'') but within the area predicted to receive
interference from the proposed facilities (``proposed predicted
interference area''). Persons for whom predicted interference will be
eliminated
[[Page 157]]
are those located within the existing predicted interference area and
outside the proposed predicted interference area.
(i) In making this calculation, the provisions contained at
paragraph (e) will be used except as modified by paragraph (b)(3) of
this section.
(ii) The following adjustment to the population calculation may be
made: up to 1,000 persons may be subtracted from the population
predicted to receive new interference if, for each person substracted,
the applicant effectively installs two filters within 90 days after
commencing program tests with the proposed facilities and, no later than
45 days thereafter, provides the affected TV Channel 6 station (as
defined in paragraph (a) of this section) with a certification
containing sufficient information to permit verification of such
installation. The required number of filters will be installed on
television receivers located within the predicted interference area;
provided that half of the installations are within the area predicted to
receive new interference.
(3) Where an NCE-FM applicant wishes to operate with facilities in
excess of that permitted under the provisions of paragraphs (c) or (d)
of this section, by proposing to use vertically polarized transmissions
only, or to increase its ratio of vertically to horizontally polarized
transmissions, the affected TV Channel 6 station must be given an option
to pay for the required antenna and, if it takes that option, the NCE-FM
vertically polarized component of power will be one half (-3 dB) that
which would be allowed by the provisions of paragraph (e)(4) of this
section.
(4) Applications for modification will include a certification that
the applicant has given early written notice of the proposed
modification to all affected TV Channel 6 stations (as defined in
paragraph (a) of this section).
(5) Where the NCE-FM station demonstrates in its application that it
must make an involuntary modification (e.g., due to loss of its
transmitter site) that would not otherwise be permitted under this
section, its application will be considered on a case-by-case basis. In
such cases, the provisions of paragaph (b)(3) of this section do not
apply.
(c) New NCE-FM stations. Except as provided for by paragraph (d) of
this section, applicants for NCE-FM stations proposing to operate on
Channels 201-220 must submit a showing indicating that the predicted
interference area resulting from the proposed facility contains no more
than 3,000 persons.
(1) In making these calculations, the provisions in paragraph (e) of
this section will be used.
(2) The following adjustment to population may be made: up to 1,000
persons may be subtracted from the population within the predicted
interference area if, for each person subtracted, the applicant
effectively installs one filter within 90 days after commencing program
tests and, no later than 45 days thereafter, provides the affected TV
Channel 6 station with a certification containing sufficient information
to permit verification of such installation. The required number of
filters will be installed on television receivers located within the
predicted interference area.
(d) Collocated Stations. As an alternative to the provisions
contained in paragraphs (b) and (c) of this section, an application for
a NCE-FM station operating on Channels 201-220 and located at 0.4
kilometer (approximately 0.25 mile) or less from a TV Channel 6 station
will be accepted under the following requirements:
(1) The effective radiated power cannot exceed the following values:
Table B
------------------------------------------------------------------------
NCE-FM channel Power (kilowatt) NCE-FM channel Power (kilowatt)
------------------------------------------------------------------------
201 1.1 211 26.3
202 1.9 212 31.6
203 3.1 213 38.0
204 5.0 214 46.8
205 8.3 215 56.2
206 10.0 216 67.6
207 12.0 217 83.2
208 14.8 218 100.0
209 17.8 219 100.0
210 21.4 220 100.0
------------------------------------------------------------------------
(2) The NCE-FM application will include a certification that the
applicant has coordinated its antenna with the affected TV station by
employing either: The same number of antenna bays
[[Page 158]]
with radiation centers separated by no more than 30 meters
(approximately 100 feet) verticially; or, the FM vertical pattern not
exceeding the TV vertical pattern by more than 2dB.
(e) Calculation of predicted interference area and population.
Predictions of interference required under this section and calculations
to determine the number of persons within a predicted interference area
for NCE-FM operation on Channels 201-220 are made as follows:
(1) The predicted interference area will be calculated as follows:
(i) The distances to the TV Channel 6 field strength contours will
be predicted according to the procedures specified in Sec. 73.684,
``Prediction of coverage,'' using the F(50,50) curves in Figure 9,
Sec. 73.699.
(ii) For each TV Channel 6 field strength contour, there will be an
associated F(50,10) FM interference contour, the value of which (in
units of dBu) is defined as the sum of the TV Channel 6 field strength
(in dBu) and the appropriate undesired-to-desired (U/D) signal ratio (in
dB) obtained from Figures 1 and 2, Sec. 73.599, corresponding to the
channel of the NCE-FM applicant and the appropriate F(50,50) field
strength contour of the TV Channel 6 station.
(iii) An adjustment of 6 dB for television receiving antenna
directivity will be added to each NCE-FM interference contour at all
points outside the Grade A field strength contour (Sec. 73.683) of the
TV Channel 6 station and within an arc defined by the range of angles,
of which the FM transmitter site is the vertex, from 110 deg. relative
to the azimuth from the FM transmitter site to the TV Channel 6
transmitter site, counterclockwise to 250 deg. relative to that azimuth.
At all points at and within the Grade A field strength contour of the TV
Channel 6 station, the 6 dB adjustment is applicable over the range of
angles from 70 deg. clockwise to 110 deg. and from 250 deg. clockwise to
290 deg..
(iv) The distances to the applicable NCE-FM interference contours
will be predicted according to the procedures specified in Sec. 73.313,
``Prediction of Coverage,'' using the proposed antenna height and
horizontally polarized, or the horizontal equivalent of the vertically
polarized, effective radiated power in the pertinent direction and the
F(50,10) field strength curves (Figure 1a, Sec. 73.333).
(v) The predicted interference area will be defined as the area
within the TV Channel 6 station's 47 dBu field strength contour that is
bounded by the locus of intersections of a series of TV Channel 6 field
strength contours and the applicable NCE-FM interference contours.
(vi) In cases where the terrain in one or more directions departs
widely from the surrounding terrain average (for example, an intervening
mountain), a supplemental showing may be made. Such supplemental
showings must describe the procedure used and should include sample
calculations. The application must also include maps indicating the
predicted interference area for both the regular method and the
supplemental method.
(vii) In cases where the predicted interference area to Channel 6
television from a noncommercial educational FM station will be located
within the 90 dBu F(50,50) contour of the television Channel 6 station,
the location of the FM interfering contour must be determined using the
assumption that the Channel 6 field strength remains constant at 90 dBu
everywhere within the 90 dBu TV contour. The FM to Channel 6 U/D signal
strength ratio specified in Sec. 73.599 corresponding to the Channel 6
TV field strength of 90 dBu shall be used.
(2) The number of persons contained within the predicted
interference area will be based on data contained in the most recently
published U.S. Census of Population and will be determined by plotting
the predicted interference area on a County Subdivision Map of the state
published for the Census, and totalling the number of persons in each
County Subdivision (such as, Minor Civil Division (MCD), Census County
Division (CCD), or equivalent areas) contained within the predicted
interference area. Where only a portion of County Subdivision is
contained within the interference area:
(i) The population of all incorporated places or Census designated
places will be subtracted from the County Subdivision population;
[[Page 159]]
(ii) Uniform distribution of the remaining population over the
remaining area of the County Subdivision will be assumed in determining
the number of persons within the predicted interference area in
proportion to the share of the remaining area of the County Subdivision
that lies within the predicted interference area; and,
(iii) The population of the incorporated places or Census designated
places contained within the predicted interference area will then be
added to the total, again assuming uniform distribution of the
population within the area of each place and adding a share of the
population proportional to the share of the area if only a portion of
such a place is within the predicted interference area.
(iv) At the option of either the NCE-FM applicant or an affected TV
Channel 6 station which provides the appropriate analysis, more detailed
population data may be used.
(3) Adjustments to the population calculated pursuant to paragraph
(e)(2) of this section may be made as follows:
(i) If any part of the predicted interference area is within the
Grade A field strength contour (Sec. 73.683) of a TV translator station
carrying the affected TV Channel 6 station, the number of persons within
that overlap area will be subtracted, provided the NCE-FM construction
permit and license will contain the following conditions:
(A) When the TV translator station ceases to carry the affected TV
Channel 6 station's service and the cessation is not the choice of the
affected TV Channel 6 station, the NCE-FM station will modify its
facilities, within a reasonable transition period, to meet the
requirements of this section which would have applied if no adjustment
to population for translator service had been made in its application.
(B) The transition period may not exceed 1 year from the date the
NCE-FM station is notified by the TV Channel 6 station that the
translator station will cease to carry the affected TV Channel 6
station's service or 6 months after the translator station ceases to
carry the affected TV Channel 6 station's service, whichever is earlier.
(ii) If any part of the interference area is within the Grade B
field strength contour (Sec. 73.683) of a satellite station of the
affected TV Channel 6 station, the number of persons within the overlap
area will be subtracted, provided the NCE-FM permit and license will
contain the following conditions:
(A) If the satellite station ceases to carry the affected TV Channel
6 station's service and the cessation is not the choice of the affected
TV Channel 6 station, the NCE-FM station will modify its facilities,
within a reasonable transition period, to meet the requirements of this
rule which would have applied if no adjustment to population for
satellite station service had been made in its application.
(B) The transition period may not exceed 1 year from the date the
NCE-FM station is notified by the TV Channel 6 station that the
satellite station will cease to carry the affected TV Channel 6
stations's service or 6 months after the satellite station ceases to
carry the affected TV Channel 6 station's service, whichever is earlier.
(iii) If any part of the predicted interference area is located
outside the affected TV Channel 6 station's Area of Dominant Influence
(ADI), outside the Grade A field strength contour (Sec. 73.683), and
within the predicted city grade field strength contour (73.685(a)) of a
TV broadcast station whose only network affiliation is the same as the
only network affiliation of the affected TV Channel 6 station, the
number of persons within that part will be subtracted. (For purposes of
this provision, a network is defined as ABC, CBS, NBC, or their
successors.) In addition, the ADI of an affected TV Channel 6 station
and the program network affiliations of all relevant TV broadcast
stations will be assumed to be as they were on the filing date of the
NCE-FM application or June 1, 1985, whichever is later.
(iv) In calculating the population within the predicted interference
area, an exception will be permitted upon a showing (e.g., as survey of
actual television reception) that the number of persons within the
predicted interference area should be reduced to account for persons
actually experiencing co-channel or adjacent channel interference to
reception of the affected TV
[[Page 160]]
Channel 6 station. The area within which such a showing may be made will
be limited to the area calculated as follows:
(A) The distances to the field strength contours of the affected TV
Channel 6 station will be predicted according to the procedures
specified in Sec. 73.684, ``Prediction of coverage,'' using the F(50,50)
curves in Figure 9, Sec. 73.699.
(B) For each field strength contour of the affected TV Channel 6
station, there will be an associated co-channel or adjacent channel TV
broadcast station interference contour, the value of which (in units of
dBu) is defined as the sum of the affected TV Channel 6 station's field
strength (in dBu) and the appropriate undesired-to-desired signal ratio
(in dB) as follows:
Co-channel, normal offset, -22 dB
Co-channel, no offset, -39 dB
Adjacent channel, +12 dB
(C) The distances to the associated co-channel or adjacent channel
TV broadcast station interference contour will be predicted according to
the procedures specified in Sec. 73.684, ``Prediction of coverage,''
using the F(50,10) curves in Figure 9a, Sec. 73.699.
(D) The area within which the showing of actual interference may be
made will be the area bounded by the locus of intersections of a series
of the affected TV Channel 6 station's field strength contours and the
associated interference contours of the co-channel or adjacent channel
TV broadcast station.
(4) The maximum permissible effective radiated power (ERP) and
antenna height may be adjusted for vertical polarity as follows:
(i) If the applicant chooses to use vertically polarized
transmissions only, the maximum permissible vertically polarized ERP
will be the maximum horizontally polarized ERP permissible at the same
proposed antenna height, calculated without the adjustment for
television receiving antenna directivity specified in paragraph
(e)(1)(iii) of this section, multiplied by either: 40 if the predicted
interference area lies entirely outside the limits of a city of 50,000
persons or more; or 10 if it does not.
(ii) If the applicant chooses to use mixed polarity, the permissible
ERP is as follows:
[H+(V/A)] is no greater than P
Where:
H is the horizontally polarized ERP in kilowatts for mixed polarity;
V is the vertically polarized ERP in kilowatts for mixed polarity;
A is 40 if the predicted interference area lies entirely outside the
limits of a city of 50,000 persons or more, or 10 if it does not; and
P is the maximum permitted horizontally polarized-only power in
kilowatts.
(f) Channel 200 Applications. No application for use of NCE-FM
Channel 200 will be accepted if the requested facility would cause
objectionable interference to TV Channel 6 operations. Such
objectionable interference will be considered to exist whenever the 15
dBu contour based on the F(50,10) curves in Sec. 73.333 Figure 1a would
overlap the 40 dBu contour based on the F(50,50) curves in Sec. 73.699,
Figure 9.
[50 FR 27963, July 9, 1985; 50 FR 30187, July 24, 1985; 50 FR 31379,
Aug. 2, 1985, as amended at 51 FR 26250, July 22, 1986; 52 FR 25867,
July 9, 1987; 62 FR 51059, Sept. 30, 1997]
Sec. 73.558 Indicating instruments.
The requirements for indicating instruments described in Sec. 73.258
are applicable to all educational FM broadcast stations licensed with a
transmitter power greater than 0.01 kw.
[51 FR 17029, May 8, 1986]
Sec. 73.561 Operating schedule; time sharing.
(a) All noncommercial educational FM stations will be licensed for
unlimited time operation except those stations operating under a time
sharing arrangement. All noncommercial educational FM stations are
required to operate at least 36 hours per week, consisting of at least 5
hours of operation per day on at least 6 days of the week; however,
stations licensed to educational institutions are not required to
operate on Saturday or Sunday or to observe the minimum operating
requirements during those days designated on the official school
calendar as vacation or recess periods.
(b) All stations, including those meeting the requirements of
paragraph (a) of this section, but which do not operate 12 hours per day
each day of the year, will be required to share use of
[[Page 161]]
the frequency upon the grant of an appropriate application proposing
such share time arrangement. Such applications shall set forth the
intent to share time and shall be filed in the same manner as are
applications for new stations. They may be filed at any time, but in
cases where the parties are unable to agree on time sharing, action on
the application will be taken only in connection with the renewal of
application for the existing station. In order to be considered for this
purpose, such an application to share time must be filed no later than
the deadline for filing petitions to deny the renewal application of the
existing licensee, or, in the case of renewal applications filed by the
existing licensee on or before May 1, 1995, no later than the deadline
for filing applications in conflict with the such renewal applications.
(1) The licensee and the prospective licensee(s) shall endeavor to
reach an agreement for a definite schedule of periods of time to be used
by each. Such agreement shall be in writing and shall set forth which
licensee is to operate on each of the hours of the day throughout the
year. Such agreement shall not include simultaneous operation of the
stations. Each licensee shall file the same in triplicate with each
application to the Commission for initial construction permit or renewal
of license. Such written agreements shall become part of the terms of
each station's license.
(2) The Commission desires to facilitate the reaching of agreements
on time sharing. However, if the licensees of stations authorized to
share time are unable to agree on a division of time, the Commission
shall be so notified by statement to that effect filed with the
application proposing time sharing. Thereafter the Commission will
designate the application for hearing on any qualification issues
arising regarding the renewal or new applicants. If no such issues
pertain, the Commission will set the matter for expedited hearing
limited solely to the issue of the sharing of time. In the event the
stations have been operating under a time sharing agreement but cannot
agree on its continuation, a hearing will be held, and pending such
hearing, the operating schedule previously adhered to shall remain in
full force and effect.
(c) A departure from the regular schedule set forth in a time-
sharing agreement will be permitted only in cases where a written
agreement to that effect is reduced to writing, is signed by the
licensees of the stations affected thereby, and is filed in triplicate
by each licensee with the Commission, Attention: Audio Services
Division, Mass Media Bureau, prior to the time of the proposed change.
If time is of the essence, the actual departure in operating schedule
may precede the actual filing of the written agreement, provided that
appropriate notice is sent to the Commission in Washington, DC,
Attention: Audio Services Division, Mass Media Bureau.
(d) In the event that causes beyond the control of a permittee or
licensee make it impossible to adhere to the operating schedule in
paragraphs (a) or (b) of this section or to continue operating, the
station may limit or discontinue operation for a period not exceeding 30
days without further authority from the Commission, Provided, That
notification is sent to the Commission in Washington, DC, Attention:
Audio Services Division, Mass Media Bureau, no later than the 10th day
of limited or discontinued operation. During such period, the permittee
shall continue to adhere to the requirements of the station license
pertaining to the lighting of antenna structures. In the event normal
operation is restored prior to the expiration of the 30 day period, the
permittee or licensee will notify the FCC, Attention: Audio Services
Division of the date that normal operations resumed. If causes beyond
the control of the permittee or licensee make it impossible to comply
within the allowed period, Special Temporary Authority (see Section
73.1635) must be requested to remain silent for such additional time as
deemed necessary. The license of a broadcasting station that fails to
transmit broadcast signals for any consecutive 12 month period expires
as a matter of law at the end of that period, notwithstanding any
provision, term, or condition of license to the contrary.
[[Page 162]]
Note 1: For allocations purposes, both (all) stations sharing time
will be treated as unlimited time stations.
Note 2: See Secs. 73.1705, 73.1715, and 73.1740.
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, 1082 (47 U.S.C. 154,
155, 303))
[43 FR 39717, Sept. 6, 1978, as amended at 43 FR 45845, Oct. 4, 1978; 44
FR 3416, Jan. 19, 1979; 44 FR 65764, Nov. 15, 1979; 47 FR 54448, Dec. 3,
1982; 50 FR 13974, Apr. 9, 1985; 61 FR 18291, Apr. 25, 1996; 61 FR
28767, June 6, 1996; 63 FR 33877, June 22, 1998]
Sec. 73.567 Determining operating power.
The procedures for determining operating power described in
Sec. 73.267 are applicable to noncommercial education FM stations.
[44 FR 58732, Oct. 11, 1979]
Sec. 73.593 Subsidiary communications services.
The licensee of a noncommercial educational FM station is not
required to use its subcarrier capacity, but if it chooses to do so, it
is governed by Secs. 73.293 through 73.295 of the Commission's Rules
regarding the types of permissible subcarrier uses and the manner in
which subcarrier operations shall be conducted; Provided, however, that
remunerative use of a station's subcarrier capacity shall not be
detrimental to the provision of existing or potential radio reading
services for the blind or otherwise inconsistent with its public
broadcasting responsibilities.
[48 FR 26615, June 9, 1983]
Sec. 73.597 FM stereophonic sound broadcasting.
A noncommercial educational FM broadcast station may, without
specific authority from the FCC, transmit stereophonic sound programs
upon installation of stereophonic sound transmitting equipment under the
provisions of Secs. 2.977, 2.1001, 73.322, and 73.1590 of the FCC's
Rules.
[51 FR 17029, May 8, 1986]
Sec. 73.599 NCE-FM engineering charts.
[[Page 163]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.091
[[Page 164]]
[GRAPHIC] [TIFF OMITTED] TC01MR91.092
[50 FR 27965, July 9, 1985]
[[Page 165]]
Subpart D [Reserved]
Subpart E--Television Broadcast Stations
Sec. 73.601 Scope of subpart.
This subpart contains the rules and regulations (including
engineering standards) governing TV broadcast stations, including
noncommercial educational TV broadcast stations and, where indicated,
low power TV and TV translator stations in the United States, its
Territories and possessions. TV broadcast, low power TV, and TV
translator stations are assigned channels 6 MHz wide, designated as set
forth in Sec. 73.603(a).
[47 FR 21494, May 18, 1982]
Sec. 73.602 Cross reference to rules in other parts.
See Sec. 73.1010.
[43 FR 32781, July 28, 1978]
Sec. 73.603 Numerical designation of television channels.
(a)
------------------------------------------------------------------------
Frequency
Channel No. band (MHz)
------------------------------------------------------------------------
2........................................................... 54-60
3........................................................... 60-66
4........................................................... 66-72
5........................................................... 76-82
6........................................................... 82-88
7........................................................... 174-180
8........................................................... 180-186
9........................................................... 186-192
10.......................................................... 192-198
11.......................................................... 198-204
12.......................................................... 204-210
13.......................................................... 210-216
14.......................................................... 470-476
15.......................................................... 476-482
16.......................................................... 482-488
17.......................................................... 488-494
18.......................................................... 494-500
19.......................................................... 500-506
20.......................................................... 506-512
21.......................................................... 512-518
22.......................................................... 518-524
23.......................................................... 524-530
24.......................................................... 530-536
25.......................................................... 536-542
26.......................................................... 542-548
27.......................................................... 548-554
28.......................................................... 554-560
29.......................................................... 560-566
30.......................................................... 566-572
31.......................................................... 572-578
32.......................................................... 578-584
33.......................................................... 584-590
34.......................................................... 590-596
35.......................................................... 596-602
36.......................................................... 602-608
37.......................................................... 608-614
38.......................................................... 614-620
39.......................................................... 620-626
40.......................................................... 626-632
41.......................................................... 632-638
42.......................................................... 638-644
43.......................................................... 644-650
44.......................................................... 650-656
45.......................................................... 656-662
46.......................................................... 662-668
47.......................................................... 668-674
48.......................................................... 674-680
49.......................................................... 680-686
50.......................................................... 686-692
51.......................................................... 692-698
52.......................................................... 698-704
53.......................................................... 704-710
54.......................................................... 710-716
55.......................................................... 716-722
56.......................................................... 722-728
57.......................................................... 728-734
58.......................................................... 734-740
59.......................................................... 740-746
60.......................................................... 746-752
61.......................................................... 752-758
62.......................................................... 758-764
63.......................................................... 764-770
64.......................................................... 770-776
65.......................................................... 776-782
66.......................................................... 782-788
67.......................................................... 788-794
68.......................................................... 794-800
69.......................................................... 800-806
------------------------------------------------------------------------
(b) In Alaska, television broadcast stations operating on Channel 5
(76-82 MHz) and on Channel 6 (82-88 MHz) shall not cause harmful
interference to and must accept interference from non-Government fixed
operations authorized prior to January 1, 1982.
(c) Channel 37, 608-614 MHz is reserved exclusively for the radio
astronomy service.
(d) In Hawaii, the frequency band 488-494 MHz is allocated for non-
broadcast use. This frequency band (Channel 17) will not be assigned in
Hawaii for use by television broadcast stations.
[28 FR 13660, Dec. 14, 1963, as amended at 35 FR 11179, July 11, 1970;
39 FR 10576, Mar. 21, 1974; 47 FR 16789, Apr. 20, 1982; 47 FR 30068,
July 12, 1982; 47 FR 35989, Aug. 18, 1982; 51 FR 18450, May 20, 1986]
Sec. 73.606 Table of allotments.
(a) General. The following table of allotments contains the channels
designated for the listed communities in the United States, its
Territories, and possessions. Channels designated with
[[Page 166]]
an asterisk are assigned for use by noncommercial educational broadcast
stations only. A station on a channel identified by a plus or minus mark
is required to operate with its carrier frequencies offset 10 kHz above
or below, respectively, the nominal carrier frequencies.
(b) Table of Allotments.
Alabama
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Anniston.................................. 40-
Arab...................................... 56-
Bessemer.................................. 17
Birmingham................................ 6-, *10-, 13-, 21-, 42+,
*62+, 68-
Decatur...................................
Demopolis................................. *41
Dothan.................................... 4, 18, *39+, 60-
Dozier.................................... *2-
Florence.................................. 15, 26, *36-
Gadsden................................... 44+, 60
Gulf Shores............................... 55
Huntsville................................ 19, *25+, 31+, 48-
Huntsville-Decatur........................ 54
Louisville................................ *43+
Mobile.................................... 5+, 10+, 15+, 21+, *31, *42,
and 61
Montgomery................................ 12, 20, *26+, 32, 45-, *63
Mount Cheaha.............................. *7-
Munford................................... *16-
Opelika................................... 50, 66
Ozark..................................... 34
Selma..................................... 8, 29-
Troy...................................... 67
Tuscaloosa................................ 23-, 33, *39-
Tuscumbia................................. 52+
Tuskegee.................................. 22-
------------------------------------------------------------------------
Alaska
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Anchorage................................. 2-, 4-, 5, *7-, *9, 11, 13-,
and 33
Bethel.................................... *4
Dillingham................................ *2, 10
Fairbanks................................. 2+, 7+, *9+, 11+, 13+
Juneau.................................... *3, 8, 10
Ketchikan................................. 2, 4, *9
North Pole................................ 4+
Seward.................................... 3-,
Sitka..................................... 13
------------------------------------------------------------------------
Arizona
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Ajo....................................... *23-
Coolidge.................................. *43
Douglas................................... 3, *28
Flagstaff................................. 2, 4+, 9, 13, and *16
Globe..................................... *14+
Green Valley.............................. 46
Holbrook.................................. 11+, *18+
Kingman................................... 6-, *14-
McNary.................................... *22+
Mesa...................................... 12-
Nogales................................... *16+
Page...................................... *17
Parker.................................... *17-
Phoenix................................... 3+, 5-, *8+, 10-, 15-, 21,
33, *39, 45, 61
Prescott.................................. 7, *19
Safford................................... *23+
Sierra Vista.............................. 58
Tolleson.................................. 51
Tucson.................................... 4-, *6+, 9-, 13-, 18-, *27-,
40
Tucson-Nogales............................ \2\ 11
Yuma...................................... 11-, 13+, *16-
------------------------------------------------------------------------
Arkansas
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Arkadelphia............................... *9+
Camden.................................... 237A, 246, 49-
Cimarron.................................. 23
El Dorado................................. 10-, *30+, 43-
Eureka Springs............................ 34+
Fayetteville.............................. *13-, 36
Fort Smith................................ 5-, 24+, 40-
Gosnell................................... 46
Harrison.................................. 31+
Hot Springs............................... *20, 26
Jonesboro................................. 8-, *19+, 48+
Little Rock............................... *2-, 4, 7-, 11, 16-, *36,
and 42
Mountain Home............................. 43+
Mountain View............................. *6-
Newark.................................... *17
Pine Bluff................................ 25-, 38-
Rogers.................................... 51-
Russellville.............................. *28+
Springdale................................ 57
------------------------------------------------------------------------
California
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alturas................................... 13+
Anaheim................................... 56-
Arcata.................................... 23
Avalon.................................... 54
Bakersfield............................... 17, 23-, 29, *39-, 45, 65+
Barstow................................... *35+, 64
Big Bear Lake............................. 59+
Bishop.................................... *14-, 20+
Blythe.................................... *22-
Brawley................................... *26
Calipatria................................ 54
Ceres..................................... *23+
Chico..................................... 12-, *18, 24+, *46-
Clovis.................................... 43
Coalinga.................................. *27-
Concord................................... 42
Corona.................................... 52
Cotati.................................... *22-
El Centro................................. 7+, 9+
Eureka.................................... 3-, 6-, *13-, and 29
Fort Bragg................................ 8-
Fresno.................................... *18+, 24, 30+, 47, 53,
Hanford................................... 21
Huntington Beach.......................... *50-
Indio..................................... *19+
Long Beach................................ 18-
Los Angeles............................... 2, 4, 5, 7, 9, 11, 13, 22,
*28, 34, *58-, *68-
Merced.................................... 51
Modesto................................... 19-
[[Page 167]]
Novato.................................... 68
Oakland................................... 2+
Ontario................................... 46
Oroville.................................. 28
Oxnard.................................... 63+
Palm Springs.............................. 36-, 42
Paradise.................................. 30
Porterville............................... 61
Rancho Palos Verdes....................... 44+
Redding................................... 7, *9, 16
Ridgecrest................................ *25
Riverside................................. 62
Sacramento................................ 3, *6, 10, 29-, 31-, 40-,
*52
Salinas-Monterey.......................... 8+, 35-, 46-, *56, 67-
San Bernardino............................ *24-, 30
San Diego................................. 8, 10, *15, 39, 51, 69
San Francisco............................. 4-, 5+, 7-, *9+, 14+, 20-,
26-, *32+, 38, 44-
San Jose.................................. 11+, 36, 48-, *54, 65
San Luis Obispo........................... 6+, *15+, and 33
San Mateo................................. *60
Sanger.................................... 59
Santa Anna................................ 40,
Santa Barbara............................. 3-, 14,1 *20,1 , 38, and *55
Santa Cruz................................ *16-
Santa Maria............................... 12+, 42+
Santa Rosa................................ 50-, *62
Stockton.................................. 13+, 58, 64
Susanville................................ *14
Twentynine Palms.......................... 31
Vallejo-Fairfield......................... 66
Ventura................................... 57
Visalia................................... 26+, *49
Watsonville............................... *25+
Weaverville............................... 32
Willits................................... 11-
Yosemite Valley........................... 41
Yreka City................................ *20+
------------------------------------------------------------------------
Colorado
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alamosa................................... *16, 47
Boulder................................... 14
Broomfield................................ *12
Castle Rock............................... 53
Colorado Springs.......................... 11, 13, 21
Craig..................................... *16+
Denver.................................... 2, 4-, *6-, 7, 9-, 20, 31,
*41, 50, 59
Durango................................... 6+, *20-, and 33+
Fort Collins.............................. 22-
Glenwood Springs.......................... 3-, *19+
Grand Junction............................ 5-, 8-, *18+, 4*, 11+
Gunnison.................................. *17-
La Junta.................................. *22+
Lamar..................................... 12-, *14-
Leadville................................. *15-
Longmont.................................. 25
Montrose.................................. 10+, *22
Pueblo.................................... 5, *8, 26+, 32-
Salida.................................... *23+
Steamboat Springs......................... 24+
Sterling.................................. 3, *18+
Trinidad.................................. *24
------------------------------------------------------------------------
Connecticut
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Bridgeport................................ 43-, *49-
Hartford.................................. 3+, 18-, *24, 61+
New Britain............................... 30+
New Haven................................. 8, 59+, 55
New London................................ 26+
Norwich................................... *53
Waterbury................................. 20
------------------------------------------------------------------------
Delaware
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Dover..................................... *34
Seaford................................... 38, *64
Wilmington................................ *12, 61
------------------------------------------------------------------------
District of Columbia
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Washington................................ 4-, 5-, 7+, 9, 20+, *26-,
*32+, 50
------------------------------------------------------------------------
Florida
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Boca Raton................................ *63
Bradenton................................. *19, 66
Bunnell................................... 58
Cape Coral................................ 36
Clearwater................................ 22
Clermont.................................. 18-
Cocoa..................................... *52, 68
Crystal River............................. 39-
Daytona Beach............................. 2-, 26
Destin.................................... 64+
Fort Lauderdale........................... 51
Fort Myers................................ 11+, 20+, *30
Fort Pierce............................... *21-, 34
Fort Walton Beach......................... 35, 53, 58
Gainesville............................... *5-, 20, 61+
High Springs.............................. 53+
Hollywood................................. 69
Inverness................................. 64
Islamorada................................ *9+
Jacksonville.............................. 4+, *7, 12+, 17, 30+, 47-,
*59
Kenansville............................... 31
Key West.................................. 8, *13, and 22+
Lake City................................. *41
Lake Worth................................ 67
Lakeland.................................. 32
Leesburg.................................. *45-, 55
Live Oak.................................. 57-
Madison................................... *36-
Marathon.................................. 16+
Marianna.................................. *16+, 51
Melbourne................................. 43+, 56
Miami..................................... *2, 4, 6, 7-, 10+, *17-, 23-
, 33, 35, 39, and 45+
Naples.................................... 26-, 46
New Smyrna Beach.......................... *15+
Ocala..................................... *29, 51-
Orange Park............................... 25-
Orlando................................... 6-, 9, * 24-, 27, 35+, and
65
Palatka................................... *42, 63+
Palm Beach................................ 61
Panama City............................... 7+, 13, 28-, *56, 46
Panama City Beach......................... 46
Pensacola................................. 3-, *23, 33+, 44
St. Petersburg............................ 10-, 38, 44+
[[Page 168]]
Sarasota.................................. 40
Sebring................................... *48, 60
Stuart.................................... 59
Tallahassee............................... *11-, 24, 27+, 40+
Tampa..................................... *3, 8-, 13-, *16, 28, and 50
Tequesta.................................. 25
Tice...................................... 49
Venice.................................... 62
West Palm Beach........................... 5, 12, 29+, *42+,
------------------------------------------------------------------------
Georgia
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Albany.................................... 10, 19-, 31-, and 52-
Ashburn................................... *23+
Athens.................................... *8-, 34
Atlanta................................... 2, 5-, 11+, 17-, *30, 36, 46-
, *57+, 69
Augusta................................... 6+, 12-, 26, 54-
Bainbridge................................ 49
Baxley.................................... 34
Brunswick................................. 21+
Carrollton................................ *49-
Carnesville............................... *52
Cedartown................................. *65-
Chatsworth................................ *18-
Cochran................................... *29+
Columbus.................................. 3, 9+, *28, 38+, *48, 54+
Cordele................................... 55+
Dalton.................................... 23
Dawson.................................... *25
Draketown................................. *27-
Elberton.................................. *60+
Flintstone................................ *41-
Lafayette................................. *35
Macon..................................... 13+, 24+, 41+, *47+, 64-
Monroe.................................... 63
Pelham.................................... *14-
Perry..................................... 58+
Rome...................................... 14+
Royston................................... *22+
Savannah.................................. 3, *9-, 11, 22,
Thomasville............................... 6
Toccoa.................................... 32-, *68-
Valdosta.................................. *33, 44-
Vidalia................................... *18+
Warm Springs..............................
Warner Robbins............................ 35-
Waycross.................................. *8+
Wrens..................................... *20-
Young Harris.............................. *51-
------------------------------------------------------------------------
Hawaii
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Hilo (Hawaii)............................. 2, *4, 9, 11, 13, 14+, 20+,
26+, *32+, *38+
Honolulu (Oahu)........................... 2+, 4-, 5, 9-, *11+, 13-,
14, 20, 26, 32, *38, and
*44.
Kailua.................................... 50
Kailua-Kona (Hawaii)...................... 6
Kaneohe................................... 66+
Lihue (Kauai)............................. 3+, *8-, 10+, 12-, 15-, *21-
, *27-, *67
Wailuku (Maui)............................ 3, 7, *10, 12, 15, 21, *27,
*33, 39
Waimanalo................................. 56
------------------------------------------------------------------------
Idaho
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Boise..................................... 2, *4+, 7, 14
Burley.................................... *17+
Caldwell.................................. 9-
Coeur d'Alene............................. *26+
Filer..................................... *19-
Grangeville............................... *15-
Idaho Falls............................... 3, 8+, 20, *33+
Lewiston.................................. 3-
Moscow.................................... *12-
Nampa..................................... 6, 12+
Preston................................... *28
Pocatello................................. 6-, *10, 15, 25+, 31-
Sandpoint................................. *16+
Sun Valley................................ 5-
Twin Falls................................ 11, *13-, 35
Weiser.................................... *17
------------------------------------------------------------------------
Illinois
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Aurora.................................... 60
Bloomington............................... 43
Carbondale................................ *8
Champaign................................. 3+, 15-
Charleston................................ *51+
Chicago................................... 2-, 5, 7, 9+, *11, *20, 26,
32, 38-, 44
Danville.................................. 68
Decatur................................... 17, 23-
DeKalb.................................... *33, *48-
East St. Louis............................ 46
Edwardsville.............................. *18-
Elgin..................................... \4\ 66+
Freeport.................................. 23, *65-
Galesburg................................. 67
Harrisburg................................ 3
Jacksonville.............................. *14
Joliet.................................... \1\ 14-, 66+
Kankakee.................................. *54-
LaSalle................................... 35
Macomb.................................... *22+
Marion.................................... 27
Moline.................................... 8, *24-
Mount Vernon.............................. 13+
Olney..................................... *16-
Paris..................................... 46+
Peoria.................................... 19, 25+, 31+, *47-, 59+
Pontiac................................... 53
Quincy.................................... 10-, 16+, *27+
Rockford.................................. 13, 17+, 39
Rock Island............................... 4+
Springfield............................... 20+, 49-, 55+, *65+
Streator.................................. *63
Urbana.................................... *12-, 27-
Vandalia.................................. *21
------------------------------------------------------------------------
Indiana
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Anderson.................................. 67+
Angola.................................... 63
Bloomington............................... 4, *30-, 42+ and 63+
Elkhart................................... 28+
Evansville................................ 7, *9+, 14-, 25-, and 44
Fort Wayne................................ 15+, 21+, 33-, *39-, 55
Gary...................................... 50, *56+
Hammond................................... 62+
Indianapolis.............................. 6, 8-, 13-, *20-, 40, 59-,
*69
[[Page 169]]
Kokomo.................................... 29-
Lafayette................................. 18, *24
Madison................................... *60+
Marion.................................... 23
Muncie.................................... 49, *61
Richmond.................................. 43+
Salem..................................... 58+
South Bend................................ 16, 22, *34-, 46
Terre Haute............................... 2+, 10, *26-, 38
Vincennes................................. *22-
------------------------------------------------------------------------
Iowa
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Ames...................................... 5, 23-, *34+
Burlington................................ 26-, *57-
Carroll................................... *18-, 30+, and 52
Cedar Rapids.............................. 2, 9-, 28+, and 48-
Centerville............................... *31-
Council Bluffs............................ *32
Davenport................................. 6+, 18+, 30-, *36+
Decorah................................... *14+
Des Moines................................ 8-, *11+, 13-, 17+, *43-, 63-
, 69
Dubuque................................... 16-, *29-, 40-
Estherville............................... *49+
Fort Dodge................................ *21
Fort Madison.............................. *38+
Hampton................................... 50
High Point................................ *14-
Iowa City................................. *12+, 20-
Keokuk.................................... *44+
Keosauqua................................. *54+
Lansing................................... *41+
Mason City................................ 3+, *24+
Mount Ayr................................. *25-
Newton.................................... 39+
Ottumwa................................... 15+, *33-
Red Oak................................... *36
Rock Rapids............................... *25+
Sibley.................................... *33
Sioux City................................ 4-, 9, 14, *27-, 44
Spirit Lake............................... *38
Waterloo.................................. 7+, 22-, *32-
------------------------------------------------------------------------
Kansas
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Chanute................................... *30+
Cimarron.................................. 23
Colby..................................... 4
Columbus.................................. *48-
Dodge City................................ *21-
Emporia................................... *25+
Ensign.................................... 6+
Fort Scott................................ 20+
Garden City............................... 11+, 13-, *18
Goodland.................................. 10
Great Bend................................ 2
Hays...................................... 7-, *9
Hoisington................................ 14
Hutchinson................................ *8, 12, 36+
Junction City............................. 31
Lakin..................................... *3
Lawrence.................................. 38
Liberal................................... 5+
Manhattan................................. *21
Oakley.................................... *15-
Parsons................................... *39
Phillipsburg.............................. *22-
Pittsburg................................. 7+ and 14
Pratt..................................... *32+
Randall...................................
Salina.................................... 18+, 34-, 44
Sedan..................................... *28
Topeka.................................... *11, 13+, 27, 43, 49
Wichita................................... 3-, 10-, *15+, 24-, 33, *42
------------------------------------------------------------------------
Kentucky
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Ashland................................... *25, 50-, 61+
Beattyville............................... 65
Blanco.................................... 52+
Bowling Green............................. 13, *24-, 40+, *53-, 59+
Campbellsville............................ 34
Covington................................. *54+
Danville.................................. 56
Elizabethtown............................. *23+
Harlan.................................... 44-
Hazard.................................... *35+, 57-
Hopkinsville.............................. 51
Lexington................................. 18+, 27-, 36, *46, 62
Louisville................................ 3-, 11, *15, 21-, 32-, 41+,
*68+
Madisonville.............................. 19-, *35-, and 57+
Morehead.................................. *38+, 67-
Murray.................................... *21+, 38
Newport................................... 19+
Owensboro................................. 31-, 48, 61+
Owenton................................... *52+
Paducah................................... 6+, 29 and 49
Paintsville............................... 69+
Pikeville................................. *22-, 51+
Somerset.................................. 16, *29+
------------------------------------------------------------------------
Louisiana
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alexandria................................ 5, *25+, 31+, 41+
Baton Rouge............................... 2, 9-, *27+, 33-, and 44+
Columbia.................................. 11+
De Ridder................................. *23-
Hammond................................... 62+
Houma..................................... 11
Lafayette................................. 3+, 10, 15, *24
Lake Charles.............................. 7-, *18-, 29-
Minden.................................... 21+
Monroe.................................... 8+, *13,
Morgan City............................... *14+
Natchitoches.............................. *20+
New Iberia................................ 36-
New Orleans............................... 4+, 6, 8-, * 12, 20-, 26, *
32+, 38+, and 49
Shreveport................................ 3-, 12, *24-, 33, and 45+
Slidell................................... 54+
Tallulah.................................. *19
West Monroe............................... 14-, 39+
------------------------------------------------------------------------
Maine
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Augusta................................... *10-
Bangor.................................... 2-, 5+, 7-
Biddeford................................. *26-
Calais.................................... *13-
Fort Kent................................. *46+
[[Page 170]]
Fryeburg.................................. *18+
Houlton................................... *25+
Kittery................................... *39
Lewiston.................................. 35-
Millinocket............................... *44-
Orono..................................... *12-
Poland Spring 8-..........................
Portland.................................. 6-, 13+, 51
Presque Isle.............................. 8, *10+, 62+
Rumford................................... *43+
Waterville................................ 23-
------------------------------------------------------------------------
Maryland
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Annapolis................................. *22+
Baltimore................................. 2+, 11-, 13+, 24+, 45, 54,
*67-
Cumberland................................ 52+, 65
Frederick................................. *62
Hagerstown................................ 25-, *31, and 68+
Oakland................................... *36+
Salisbury................................. 16+, *28-, 47-
Waldorf................................... *58+
------------------------------------------------------------------------
Massachusetts
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Adams..................................... 19
Boston.................................... *2+, 4+, 5-, 7+, 25+, 38,
*44, 68+
Cambridge................................. 56
Greenfield................................ 32+
Lawrence.................................. 62
Marlborough............................... 66
New Bedford............................... 6+, 28-, *34
North Adams............................... *35
Norwell................................... 46+
Pittsfield................................ 51+
Springfield............................... 22, 40, *57+
Vineyard Haven............................ 58+
Worcester................................. 14, \1\ 27, *48+,
------------------------------------------------------------------------
Michigan
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alpena.................................... *6, 11
Ann Arbor................................. 31+, *58+
Bad Axe................................... * 15-, 41-
Battle Creek.............................. 41+, and 43-
Bay City.................................. 5-, 61+
Cadillac.................................. 9, *27, 33
Calumet................................... 5-, *22-
Cheboygan................................. 4+
Detroit................................... 2+, 4, 7-, 20+, 50-, *56, 62
East Lansing.............................. *23-, *69-
Escanaba.................................. 3+
Flint..................................... 12-, *28-, 66-
Grand Rapids.............................. 8+, 13+, 17-, *35+
Iron Mountain............................. 8-, *17+
Ironwood.................................. *15-, 24+
Ishpeming................................. 10
Jackson................................... 18+
Kalamazoo................................. 3-, *52+, 64
Lansing................................... 6-, 47, 53-
Manistee.................................. *21
Manistique................................ *15+
Marquette................................. 6-, *13, 19
Mount Clemens............................. 38+
Mount Pleasant............................ *14
Muskegon.................................. 54+
Onondaga.................................. 10-
Petoskey.................................. *23+
Port Huron................................ 46+
Saginaw................................... 25-, 49-
Sault Ste. Marie.......................... 8, 10+, *32-
Traverse City............................. 7+, 29-
University Center *19+....................
Vanderbilt................................ 45
West Branch............................... *24
------------------------------------------------------------------------
Minnesota
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alexandria................................ 7, * 24, and 42
Appleton.................................. *10-
Austin.................................... 6-, *15-
Bemidji................................... *9, 26+
Brainerd.................................. *22
Crookston................................. *33
Duluth.................................... 3, *8, 10+, 21+, 27-
Ely....................................... *17-
Fairmont.................................. *16+
Hibbing................................... 13-, *18-
International Falls....................... 11, *35+
Mankato................................... 12, *26-
Marshall.................................. *30-
Minneapolis-St. Paul...................... *2-, 4, 5-, 9+, 11-, *17,
23+, 29+, and 45
Redwood Falls............................. 43
Rochester................................. 10, 47-
St. Cloud................................. 19, *25-, 41
St. James................................. 32+
Thief River Falls......................... 10, *30
Wadena.................................... *20-
Walker.................................... 12-, 38-
Wilmar.................................... *14-
Winona.................................... *35+, 44-
Worthington............................... *20
------------------------------------------------------------------------
Mississippi
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Biloxi.................................... 13+, *19+,
Booneville................................ *12-
Bude...................................... *17+
Clarksdale................................ *21
Cleveland................................. *31-
Columbia.................................. *45
Columbus.................................. 4-, *43
Greenville................................ 15-, 44
Greenwood................................. 6+, *23+
Gulfport.................................. 25-
Grenada................................... 22+
Hattiesburg............................... 22, *47
Holly Springs............................. 40
Houston................................... 45+
Jackson................................... 3, 12+, 16, *29+, 40+, and
51
Laurel.................................... 7, 18+
Magee..................................... 34+
Meridian.................................. 11-, *14, 24-, 30-
Mississippi State......................... *2+
Natchez................................... *42+, 48
Oxford.................................... *18
Senatobia................................. *34-
[[Page 171]]
Tupelo.................................... 9-, 35+
Vicksburg................................. 35-
West Point................................ 27
Wiggins................................... 43-,56+
Yazoo City................................ *32-
------------------------------------------------------------------------
Missouri
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Birchtree................................. *20-
Bowling Green............................. *35+
Cape Girardeau............................ 12, 23, *39-
Carrollton................................ *18
Columbia.................................. 8+, 17-*23+
Flat River................................ *22
Hannibal.................................. 7-
Jefferson City............................ 13, 25, *36-
Joplin.................................... 12+, 16, *26-
Kansas City............................... 4, 5+, 9+, *19+, 29, 41-, 50-
, 62+, *68-
Kennett................................... 58+
King City................................. *28-
Kirksville................................ 3-
LaPlata................................... *21+
Lowry City................................ *15-
Poplar Bluff.............................. 15+, *26+, 55
Rolla..................................... *28
St. Joseph................................ 2-, 16-, 22
St. Louis................................. 2, 4-, 5-, *9, 11-, 24+,
30+, *40-, *46
Sedalia................................... 6
Sikeston.................................. 45
Springfield............................... 3+, 10, *21-, 27-, 33--
------------------------------------------------------------------------
Montana
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Anaconda.................................. 2+
Billings.................................. 2-, 6, 8, *11, 14, 20+
Bozeman................................... 7-, *9
Butte..................................... *2+, 4, 6+, 18, 24
Cut Bank.................................. *14-
Dillon.................................... *14+
Glendive.................................. 5+, 13+, *16-
Great Falls............................... 3+, 5+, 16, 26, *32
Hardin.................................... 4+
Havre..................................... 9+, 11-, and *18-
Helena.................................... 10+, 12, *15+
Joplin.................................... 35-, 48, 54-
Kalispell................................. 9-, *29-
Lewistown................................. 13
Miles City................................ 3-, *10
Missoula.................................. 8-, *11+, 13-, 17-, and 23-
Wolf Point................................ *17+
------------------------------------------------------------------------
Nebraska
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Albion.................................... 18, *21+, 24+
Alliance.................................. *13-
Bassett................................... *7-
Beatrice.................................. 23+
Falls City................................ *24
Grand Island.............................. 11-, 17
Hastings.................................. 5-, *29+
Hayes Center.............................. 6
Hay Springs-Scottsbluff................... 4+
Kearney................................... 13
Lexington................................. *3+
Lincoln................................... 8+, 10+, *12-, 45, 51
McCook.................................... 8-, 16+, 12
Merriman.................................. *12
Norfolk................................... *19+
North Platte.............................. 235, 246, 278
Omaha..................................... 3, 6+, 7, 15, *26, 42+, *48-
, and 54
Orchard................................... 16
Pawnee.................................... 33+
Scottsbluff............................... 10-, 16
Superior.................................. 4+
------------------------------------------------------------------------
Nevada
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Elko...................................... 10-, *14+
Ely....................................... 3-, 6+
Fallon.................................... *25
Goldfield................................. 7-
Henderson................................. 5+
Las Vegas................................. 3, 8-, *10+, 13-, 15+, 21+,
and 33+
Laughlin.................................. 34+
McGill.................................... *13
Paradise.................................. 39+
Pawnee City............................... *33+
Reno...................................... 2, 4, *5, 8, 11, 21+, and
27+
Tonopah................................... 9-, *17+
Winnemucca................................ 7+, *15-
Yerington................................. *16+
------------------------------------------------------------------------
New Hampshire
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Berlin.................................... *40-
Concord................................... 21+
Derry..................................... 50-
Durham.................................... *11
Hanover................................... *15+
Keene..................................... *52+
Littleton................................. *49+
Manchester................................ 9-,
Merrimack................................. 60+
Portsmouth................................ \1\ 17-
------------------------------------------------------------------------
New Jersey
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Atlantic City............................. *36, 53+, 62-
Burlington................................ 48-
Camden.................................... *23+
Linden-Newark............................. 47+
Montclair................................. *50+
Newark.................................... 13-, 68
New Brunswick............................. *58
Newton.................................... 63
Paterson.................................. 41-
Secaucus.................................. 9+
Trenton................................... *52-
Vineland.................................. 59-, 65-
West Milford.............................. *66-
Wildwood.................................. 40
------------------------------------------------------------------------
[[Page 172]]
New Mexico
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Alamogordo................................ *18-
Albuquerque............................... 4+, *5+, 7+, 13+, 14-, 23-,
*32+, 41, 50
Carlsbad.................................. 6-, *15+, 25-
Clayton................................... *17
Clovis.................................... 12--
Deming.................................... *16
Farmington................................ 3, 12+, *15+
Gallup.................................... *8-, 10
Hobbs..................................... 29+
Las Cruces................................ *22-, 48+
Lovington................................. *19
Portales.................................. *3+
Raton..................................... *18-
Roswell................................... 8, 10-, 21-, 27-, *33+
Santa Fe.................................. 2+, *9+, 11-, 19-
Silver City............................... 6, 10+, *12
Socorro................................... *15-
Tucumcari................................. *15
------------------------------------------------------------------------
New York
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Albany-Schenectady........................ 6, 10-, 13, *17+, 23-, *29+,
45
Amsterdam................................. *39+, 55
Arcade.................................... 62-
Batavia................................... 51-
Bath...................................... 14-
Binghamton................................ 12-, 34, 40-, *46+
Buffalo................................... 2, 4, 7+, 17, *23, 29-, 49-
Carthage.................................. 7-
Corning................................... *30, 48+
Elmira.................................... 18+, 36-
Garden City............................... *21-
Glens Falls............................... *58-
Ilion..................................... 67-
Ithaca.................................... 52, *65+
Jamestown................................. 26+, *46
Kingston.................................. 62+
Lake Placid............................... *34+
New York.................................. 2, 4, 5+, 7, 11+, *25, 31-
North Pole................................ 5
Norwood................................... *18
Oneonta................................... \1\ 15, *42
Plattsburg................................ *57
Poughkeepsie.............................. 54+
Riverhead................................. 55+
Rochester................................. 8, 10+, 13-, *21, 31+, *61+
Saranac Lake.............................. 61-
Smithtown................................. 67
Springville............................... 67+
Syracuse.................................. 3-, 5-, 9-, *24+, 43+, 56+,
68-
Utica..................................... 2-, 4-, 20+, 33, *59
Watertown................................. *16, 50+
Waverly................................... *57-
------------------------------------------------------------------------
North Carolina
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Andrews................................... *59
Asheville................................. 13-, 21+, *33, 62+
Belmont................................... 46+
Bryson City............................... *67
Burlington................................ 16
Canton.................................... *27
Chapel Hill............................... *4+
Charlotte................................. 3, 9+, 18, 36, *42+
Columbia.................................. *2
Concord................................... *58
Cullowhee................................. 50+
Durham.................................... 11+, 28+
Fayetteville.............................. 40+, 62
Forest City............................... 66+
Franklin.................................. *56+
Goldsboro................................. 17-
Greensboro................................ 2-, 48-, 61
Greenville................................ 9-, 14, *25, and 38+
Hickory................................... 14-
High Point................................ 8-, *32+, 67+
Jacksonville.............................. *19, 35
Kannapolis................................ 64-
Laurel Hill............................... 59+
Lexington................................. 20
Linville.................................. *17
Lumberton................................. *31
Manteo.................................... 4
Morehead City............................. 8+
Morganton................................. 23-
New Bern.................................. 12+
Raleigh................................... 5, 22, *34, 50+
Roanoke Rapids............................ *36-
Rockingham................................ *53
Rocky Mount............................... 47+
Washington................................ 7
Waynesville............................... 59
Wilmington................................ 3-, 6, 26-, *39-
Wilson.................................... 30-
Winston-Salem............................. 12, *26+, 45
------------------------------------------------------------------------
North Dakota
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Bismarck.................................. *3, 5, 12-, 17-, 26+
Devils Lake............................... 8+, *22+
Dickinson................................. 2+, *9-, 7
Ellendale................................. *19-
Fargo..................................... 6, 11+, *13, 15-
Grand Forks............................... *2, 14+, 27+
Jamestown................................. 7-, *23
Minot..................................... *6+, 10-, 13-, 14-, 24
Pembina................................... 12
Valley City............................... 4-
Williston................................. *4, 8-, 11-, *15-
------------------------------------------------------------------------
Ohio
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Akron..................................... 23+, *49+, 55-
Alliance.................................. *45+
Ashtabula................................. \1\ 15
Athens.................................... 20*, 63-
Bowling Green............................. *27+
Cambridge................................. *44-
Canton.................................... 17-, 67
Chillicothe............................... 53
Cincinnati................................ 5-, 9, 12, *48-, 64-
Cleveland................................. 3, 5+, 8, *25+, 61
Columbus.................................. 4-, 6+, 10+, 28-, *34, *56-
Dayton.................................... 2, 7+, *16+, 22+, 45
Defiance.................................. 65+
Hillsboro................................. *24+, 55+
Lima...................................... 35-, 44+, *57+, 17
Lorain.................................... 43
Mansfield................................. *47+, 68-
[[Page 173]]
Newark.................................... *31-, 51
Oxford.................................... *14+
Portsmouth................................ 30, *42-
Sandusky.................................. 52
Shaker Heights 19.........................
Springfield............................... 26+, *66
Steubenville.............................. 9+, *62+
Toledo.................................... 11-, 13, 24-, *30+, 36-, and
40-
Xenia..................................... 32
Youngstown................................ 21-, 27, 33, *58
Zanesville................................ 18-
------------------------------------------------------------------------
Oklahoma
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Ada....................................... 10+, *22
Altus..................................... *27
Ardmore................................... *17, *28-
Bartlesville.............................. 17+
Cheyenne.................................. 12+
Claremore................................. *35
Duncan.................................... 40+
Elk City.................................. *15-, and 31
Enid...................................... 20-, *26+
Eufaula................................... *3
Grove..................................... 45+
Guymon.................................... 9+, *16
Hugo...................................... 42+, \1\ *15+, *48+
Lawton.................................... 7+, *36-, 16-, 45
McAlester................................. *32-
Miami..................................... *18-
Muskogee.................................. 19
Norman.................................... 46-
Oklahoma City............................. 4-, 5, 9-, *13, 14-, 25-, 34-
, 43+, 52, and 62+
Okmulgee.................................. 44-
Sayre..................................... 8+
Shawnee................................... 30
Tulsa..................................... 2+, 6+ 8-, *11-, 23, 41+,
47, 53, and *63
Woodward.................................. *17-, 35+
------------------------------------------------------------------------
Oregon
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Astoria................................... *21
Bend...................................... *3+, *15, 21+
Brookings................................. *14-
Burns..................................... *18
Coos Bay.................................. 11, 23+, 41
Corvallis................................. *7-
Eugene.................................... 9+, 13, 16+, *28-, and 34
Grants Pass............................... *18+, 30+
Klamath Falls............................. 2-, *22+, and 31
LaGrande.................................. *13+, 16
Medford................................... 5, *8+, 10+, 12+, and 26+
North Bend................................ *17+
Pendleton................................. 11-
Portland.................................. 2, 6+, 8-, *10, 12, 24+,
*30, 40-
Roseburg.................................. 4+, 36, 46+
Salem..................................... 22, 32
The Dalles................................ *17-
------------------------------------------------------------------------
Pennsylvania
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Allentown................................. *39, 69
Altoona................................... 10-, 23-, 47, *57+
Bethlehem................................. 60-
Clearfield................................ *3+
Erie...................................... 12, 24, 35+, *54+, 66+
Greensburg................................ 40+
Harrisburg................................ 21+, 27-, *33+
Hazleton.................................. 56
Jeanette.................................. 19+
Johnstown................................. 6, 8-, 19+, *28+
Lancaster................................. 8+, 15+
Lebanon................................... 55-
Philadelphia.............................. 3, 6-, 10, 17-, 29, *35-, 57
Pittsburgh................................ 2-, 4+, 11, *13-, *16, 22,
53+
Reading................................... 51
Red Lion.................................. 49+
Scranton.................................. 16-, 22-, 38+, *44-, 64
State College............................. 29+, and *59+
Wilkes Barre.............................. 28
Williamsport.............................. \1\ 20-, 53-
York...................................... 43,
------------------------------------------------------------------------
Rhode Island
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Block Island.............................. 69-
Providence................................ 10+, 12+, \1\ 16, *36, 64+
------------------------------------------------------------------------
South Carolina
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Aiken..................................... *44
Allendale................................. *14
Anderson.................................. 40
Beaufort.................................. *16-
Charleston................................ 2+, 4, 5+, *7-, 24, and 36+
Columbia.................................. 10-, 19+, 25-, *35+, 47, 57-
Conway.................................... *23+
Florence.................................. 13+, 15-, 21, *33+
Georgetown................................ *41-
Greenville................................ 4-, 16+, *29
Greenwood................................. *38, 48+
Hardeeville............................... 28-
Myrtle Beach.............................. 32, 43+
Rock Hill................................. 30+, 55-
Spartanburg............................... 7+, 49
Sumter.................................... *27- and 63-
------------------------------------------------------------------------
South Dakota
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Aberdeen.................................. 9-, *16-
Allen..................................... 22+
Brookings................................. *8
Eagle Butte............................... *13
Florence.................................. 3-
Huron..................................... 12+
Lead...................................... 5-, 11+
Lowry..................................... *11-, 56, 62+, 68-
Martin.................................... *8-
Mitchell.................................. 5+
Pierre.................................... 4, *10+
Rapid City................................ 3+, 7+, *9, 15-, 21-
Reliance.................................. 6-
[[Page 174]]
Seneca.................................... *2-
Sioux Falls............................... 11, 13+, 17-, *23, 36+, 46
Vermillion................................ *2+
------------------------------------------------------------------------
Tennessee
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Athens.................................... *24
Chattanooga............................... 3+, 9, 12+, *45, 61-
Cleveland................................. 53
Cookeville................................ *22, 28+
Crossville................................ 20+, *55+
Fayetteville.............................. *29-
Greeneville............................... 39-
Hendersonville............................ 50
Jackson................................... 7+, 16+, *32+
Jellico................................... 54-
Johnson City.............................. 11-, *41
Kingsport................................. 19
Knoxville................................. 6, 8, 10+, *15-, 26-, 43+
Lebanon................................... 66--
Lexington................................. *11+
Livingston................................ 60-
McMinnville............................... 33+
Memphis................................... 3-, 5+, *10+, 13+, *14+, 24,
30, 50+, and *56
Murfreesboro.............................. 39+
Nashville................................. 2-, 4+, 5, *8+, 17+, 30+,
*42, and 58
Sneedville................................ *2+
Tazewell.................................. 48+
Tullahoma................................. 64+
Union City................................ 41
------------------------------------------------------------------------
Texas
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Abilene................................... 9+, 15, *26+, 32+
Alpine.................................... 12-
Alvin..................................... 67
Amarillo.................................. *2+, 4, 7, 10, 14+
Austin.................................... 7+, *18+, 24, 36, 42-, and
54
Bay City.................................. *43+
Baytown................................... 57+
Beaumont.................................. 6-, 12-, 21, *34-
Belton.................................... 46-
Big Spring................................ 4-, *14
Blanco.................................... 52+
Boquillas................................. 8-
Brady..................................... 13
Brownsville............................... 23
Bryan..................................... 3, 28
Childress................................. *21
College Station........................... *15, 50-
Conroe.................................... 49+ and 55+
Corpus Christi............................ 3-, 6, 10-, *16, 28-, 38+
Crockett.................................. 40
Dallas.................................... 4+, 8, *13+, 27-, 33+, 39,
and 58
Decatur................................... 29
Del Rio................................... 10, *24+
Denton.................................... *2
Eagle Pass................................ 16+
El Paso................................... 4, 7, 9, *13, 14, 26+, *38--
, and 65
Farwell................................... 18+
Fort Stockton............................. 5+
Fort Worth................................ 5+, 11-, 21-, *31+, and 52-
Fredericksburg............................ 2+
Galveston................................. *22, 48
Garland................................... 23
Greenville................................ 47+
Harlingen................................. 4+, *44, 60
Houston................................... 2-, *8, 11+, 13-, *14, 20,
26, 39-, and 61
Irving.................................... 49
Jacksonville.............................. 56
Katy...................................... 51+
Kennville................................. 35+
Killeen................................... 62
Lake Dallas............................... 55
Laredo.................................... 8, 13, 27-, *39
Liano..................................... 14-
Longview.................................. 16+, 51-, and 54+
Lubbock................................... *5-,11,13-, 16+, 28, and 34-
Lufkin.................................... 9
McAllen................................... 48
Marfa..................................... 3
Marshall.................................. *22-, 35+
Midland................................... 2-, 18
Mineola................................... 64+
Monahans-Odessa........................... 9-
Nacogdoches............................... 19-, *32
Odessa.................................... 7-, 24-, 30, *36+, and 42
Palestine................................. 43
Paris, Texas.............................. 36+, 42+
Port Arthur............................... 4-
Presidio.................................. 7+
Rio Grande City........................... 40
Rosenberg................................. 45
San Angelo................................ 3-, 6, 8+, *21+
San Antonio............................... 4, 5, *9-, 12+, *23-, 29+,
41+, and 60+
Sherman................................... 12-, 20-, *26-
Snyder.................................... 17-
Sonora.................................... 11+
Sulphur Springs........................... 18
Sweetwater................................ 12
Temple.................................... 6+,
Texarkana................................. 6, 17-, *34
Tyler..................................... 7,14+, *38, and 60
Uvalde.................................... 26-
Victoria.................................. 19+, 25, 31, and *47
Waco...................................... 10+, 25+, *34+, 44-
Weslaco................................... 5-
Wichita Falls............................. 3+, 6-, 18-, *24
Wolfforth................................. 22-
------------------------------------------------------------------------
Utah
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Cedar City................................ 4, *16+
Logan..................................... 12-, *22
Moab...................................... *14+
Monticello................................ *16-
Ogden..................................... *9+, *18-, 24, 30
Price..................................... 3+, *15
Provo..................................... *11-, 16, 32
Richfield................................. 8+, *19
Salt Lake City............................ 2-, 4-, 5+, *7-, 13+, 14-,
20+, *26-
St. George................................ 12, *18-
Vernal.................................... 6, *17+
------------------------------------------------------------------------
Vermont
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Burlington................................ 3, 22+, *33-, 44+
Hartford.................................. 31
Rutland................................... *28+
[[Page 175]]
St. Johnsbury............................. *20-
Windsor................................... *41
------------------------------------------------------------------------
Virginia
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Arlington................................. 14-
Ashland................................... 65+
Blacksburg................................ *43, 65-
Bristol................................... 5+, *28-
Bluefield................................. *63+
Charlottesville........................... 29-, *41-, 64+
Courtland................................. *52
Danville.................................. 24-, 44+, *56
Farmville................................. *31-
Fairfax................................... *56-
Fredericksburg............................ 69+
Front Royal............................... *42
Goldvein.................................. *53
Grundy.................................... 68
Harrisonburg.............................. 3-
Lynchburg................................. 13, 21-, *54+
Manassas.................................. 66+
Marion.................................... *52-
Norfolk-Portsmouth-Newport News-.......... 3+, 10+, 13-, *15, 27, 33,
49- and
Hampton................................... *55+
Norton.................................... *47-
Onancock.................................. *25+
Petersburg................................ 8
Richmond.................................. 6+, 12-, *23, 35+, *57-, 63
Roanoke................................... 7-, 10, *15+, 27+, 38-, and
60
Staunton.................................. *51-
Virginia Beach............................ 21+, 43+
West Point................................ *46
------------------------------------------------------------------------
Washington
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Anacortes................................. 64
Bellevue.................................. 33+, 51+
Bellingham................................ 12+, 24, *34
Centralia................................. *15+
East Wenatchee............................ 249A
Everett................................... 16-
Kennewick................................. 42+
Morton.................................... 39
Olympia................................... 67
Pasco..................................... 19-
Pullman................................... *10-, 24+
Richland.................................. 25, *31
Rochester................................. 26+
Seattle................................... 4, 5+, 7, *9, 22+, 45+, and
*62
Spokane................................... 2-, 4-, 6-,*7+22, 28-, and
34-
Tacoma.................................... 11+, 13-, 20, *28, and *56
Vancouver................................. *14, 49
Walla Walla............................... 9+
Wenatchee................................. *18+, 27
Yakima.................................... 23+, 29+, 35, *47
------------------------------------------------------------------------
West Virginia
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Bluefield................................. 6-, 40-
Charleston................................ 8+, 11+, 23, 29, *49-
Clarksburg................................ 12+, 46-
Fairmont.................................. 66-
Grandview................................. *9-
Huntington................................ 3+, 13+, *33+
Keyser.................................... *30+
Lewisburg................................. 59
Martinsburg............................... *44, 60+
Morgantown................................ *24-
Oak Hill.................................. 4
Parkersburg............................... 15-, 39+, *57
Weirton................................... *50+
Weston.................................... 5
Wheeling.................................. 7, \1\ 14, *41
Williamson................................ *31+
------------------------------------------------------------------------
Wisconsin
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Antigo.................................... 46
Appleton.................................. 32+
Bloomington............................... *49
Chippewa Falls............................ 48
Crandon................................... 4
Eagle River............................... 34
Eau Claire................................ 13+, 18
Fond du Lac............................... 68
Green Bay................................. 2+, 5+, 11+, 26+, *38, 44+
Highland.................................. *51
Janesville................................ 57+
Kenosha................................... 55-
Kieler.................................... *46+
LaCrosse.................................. 8+, 19+, 25, *31
Madison................................... 3, 15, *21-, 27+, 47+
Manitowoc................................. 16+
Marshfield................................ 39-
Mayville.................................. 52
Menomonie................................. *28-
Milwaukee................................. 4-, 6, *10+, 12, 18-, 24+,
30, *36, and 58
Oshkosh................................... 22+and *50+
Park Falls................................ *36+
Racine.................................... 49+
Rhinelander............................... 12+
Rice Lake................................. 16
Richland Center........................... 45+
Sheboygan................................. 28
Sturgeon Bay.............................. 42
Superior.................................. 6+, 40
Suring.................................... 14-
Tomah..................................... 43
Wausau.................................... 7-, 9, *20+, 33-
Wittenberg................................ 55
------------------------------------------------------------------------
Wyoming
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Casper.................................... 2+, *6+, 13+, 14-, 20-
Cheyenne.................................. 5+, *17, 27-, 33-
Jackson................................... 2, 11+
Lander.................................... *4, 5
Laramie................................... *8+
Rawlins................................... 11-
Riverton.................................. 10+
Rock Springs.............................. 13
Sheridan.................................. 7, 9+, 12+
------------------------------------------------------------------------
[[Page 176]]
U.S. Territories and Possessions
[See footnotes at end of tables]
------------------------------------------------------------------------
Channel No.
------------------------------------------------------------------------
Guam:
Agana................................... *4, 8, 10, *12
Tamuning................................ 14, 20
Puerto Rico:
Aguada.................................. 50
Aguadilla............................... *32, 44
Arecibo-Aguadilla....................... 12+
Arecibo................................. 54, 60
Bayamon................................. 36
Caguas.................................. 11-, *58
Carolina................................ 52
Cayey...................................
Fajardo................................. 13+, 34, and *40
Guayama................................. 46
Humacoa................................. 68
Mayaguez................................ 3+, 5-, 16, 22
Naranjito............................... 64
Ponce................................... 7+, 9-, 14, 20, *26, 48
San Juan................................ 2+, 4-, *6+, 18, 24, 30, and
*62
San Sebastian........................... 38
Utuado..................................
Yauco................................... 42
Virgin Islands:
Charlotte Amalie........................ 10-, 17, *23, 43
Charlotte Amalie-Christiansted.......... *3, \6\ *12
Christiansted........................... 8+, 15, *21, 27
Frederiksted............................ 66
------------------------------------------------------------------------
Footnotes to tables:
\1\ Following the decision in Docket No. 18261, channels so indicated
will not be available for television use until further action by the
Commission.
\2\ Operation on this channel is subject to the conditions, terms, and
requirements set out in the Report and Order in Docket No. 19075, RM-
1645, adopted January 5, 1972, released January 7, 1972, FCC 72-19.
\3\ [Reserved]
\4\ This channel is not available for use at Elgin unless and until it
is determined by the Commission that it is not needed for use at
Joliet, Ill.
\5\ [Reserved]
\6\ Stations using these allotments shall limit radiation toward
stations on the same channel in Puerto Rico, to no more than the
effective radiated power which would be radiated by an omnidirectional
radio station using maximum permissible effective radiated power for
antenna height above average terrain, at the minimum distances from
such stations specified in Sec. 73.610(b). The FCC shall consider the
status of the negotiations with the appropriate British authorities
concerning these allotments when the applications for construction
permits come before the FCC.
(Sec. 5, 48 Stat. 1068; 47 U.S.C. 155)
[28 FR 13660, Dec. 14, 1963]
Editorial Note: For FederalRegister citations affecting Sec. 73.606,
see the List of CFR Sections Affected in the Finding Aids section of
this volume.
Sec. 73.607 Availability of channels.
Applications may be filed to construct TV broadcast stations only on
the channels designated in the Table of Allotments (Sec. 73.606(b)) and
only in the communities listed therein. Applications which fail to
comply with this requirement, whether or not accompanied by a petition
to amend the Table, will not be accepted for filing. However,
applications specifying channels which accord with publicly announced
FCC Orders changing the Table of Allotments will be accepted for filing
even though such applications are tendered before the effective dates of
such channel changes.
[51 FR 44070, Dec. 8, 1986]
Sec. 73.609 Zones.
(a) For the purpose of allotment and assignment, the United States
is divided into three zones as follows:
(1) Zone I consists of that portion of the United States located
within the confines of the following lines drawn on the U.S. Albers
Equal Area Projection Map (based on standard parallels 29\1/2\ deg. and
45\1/2\ deg.; North American datum): Beginning at the most easterly
point on the State boundary line between North Carolina and Virginia;
thence in a straight line to a point on the Virginia-West Virginia
boundary line located at north latitude 37 deg.49' and west longitude
80 deg.12'30"; thence westerly along the southern boundary lines of the
States of West Virginia, Ohio, Indiana, and Illinois to a point at the
junction of the Illinois, Kentucky, and Missouri State boundary lines;
thence northerly along the western boundary line of the State of
Illinois to a point at the junction of the Illinois, Iowa, and Wisconsin
State boundary lines; thence easterly along the northern State boundary
line of Illinois to the 90th meridian; thence north along this meridian
to the 43.5 deg. parallel; thence east along this parallel to the United
States-Canada border; thence southerly and following that border until
it again intersects the 43.5 deg. parallel; thence east along this
parallel to the 71st meridian; thence in a straight line to the
intersection of the 69th meridian and the 45th parallel; thence east
along the 45th parallel to the Atlantic Ocean. When any of the above
lines pass through a city, the city shall be considered to be located in
Zone I. (See Figure 1 of Sec. 73.699.)
(2) Zone II consists of that portion of the United States which is
not located in either Zone I or Zone III, and Puerto Rico, Alaska,
Hawaiian Islands and the Virgin Islands.
[[Page 177]]
(3) Zone III consists of that portion of the United States located
south of a line, drawn on the United States Albers Equal Area Projection
Map (based on standard parallels 29.50 and 45.50 North American datum),
beginning at a point on the east coast of Georgia and the 31st parallel
and ending at the United States-Mexican border, consisting of arcs drawn
with a 241.4 kilometer (150 mile) radius to the north from the following
specified points:
------------------------------------------------------------------------
North West
latitude longitude
------------------------------------------------------------------------
(a)......................................... 294000" 832400"
(b)......................................... 300700" 841200"
(c)......................................... 303100" 863000"
(d)......................................... 304800" 875830"
(e)......................................... 300000" 903830"
(f)......................................... 300430" 931900"
(g)......................................... 294600" 950500"
(h)......................................... 284300" 963930"
(i)......................................... 275230" 973200"
------------------------------------------------------------------------
When any of the above arcs pass through a city, the city shall be
considered to be located in Zone II. (See Figure 2 of Sec. 73.699.)
[28 FR 13660, Dec. 14, 1963, as amended at 33 FR 15422, Oct. 17, 1968;
50 FR 23697, June 5, 1985; 51 FR 44070, Dec. 8, 1986]
Sec. 73.610 Minimum distance separations between stations.
(a) The provisions of this section relate to allotment separations
and station separations. Petitions to amend the Table of Allotments
(Sec. 73.606(b)) (other than those also expressly requesting amendment
of this section or Sec. 73.609) will be dismissed and all applications
for new TV broadcast stations or for changes in the transmitter sites of
existing stations will not be accepted for filing if they fail to comply
with the requirements specified in paragraphs (b), (c) and (d) of this
section.
Note: Licensees and permittees of television broadcast stations
which were operating on April 14, 1952 pursuant to one or more
separations below those set forth in Sec. 73.610 may continue to so
operate, but in no event may they further reduce the separations below
the minimum. As the existing separations of such stations are increased,
the new separations will become the required minimum separations until
separations are reached which comply with the requirements of
Sec. 73.610. Thereafter, the provisions of said section shall be
applicable.
(b) Minimum co-channel allotment and station separations:
(1)
----------------------------------------------------------------------------------------------------------------
Kilometers
Zone ---------------------------------------------
Channels 2-13 Channels 14-69
----------------------------------------------------------------------------------------------------------------
I................................................................. 272.7 (169.5 miles) 248.6 (154.5 miles)
II................................................................ 304.9 (189.5 miles) 280.8 (174.5 miles)
III............................................................... 353.2 (219.5 miles) 329.0 (204.5 miles)
----------------------------------------------------------------------------------------------------------------
(2) The minimum co-channel distance separation between a station in
one zone and a station in another zone shall be that of the zone
requiring the lower separation.
(c) Minimum allotment and station adjacent channel separations
applicable to all zones:
(1) Channels 2-13 95.7 kilometers (59.5 miles). Channels 14-69 87.7
kilometers (54.5 miles).
(2) Due to the frequency spacing which exists between Channels 4 and
5, between Channels 6 and 7, and between Channels 13 and 14, the minimum
adjacent channel separations specified above shall not be applicable to
these pairs of channels (see Sec. 73.603(a)).
(d) In addition to the requirements of paragraphs (a), (b) and (c)
of this section, the minimum assignment and station separations between
stations on Channels 14-69, inclusive, as set forth in Table II of
Sec. 73.698 must be met in either rule-making proceedings looking
towards the amendment of the Table of Assignments (Sec. 73.606(b)) or in
licensing proceedings. No channel listed in column (1) of Table II of
Sec. 73.698 will be assigned to any city, and no application for an
authorization to operate on such a channel will be granted, unless the
distance separations indicated at the top of columns (2) through (7),
inclusive, are met with respect to each of the channels listed in those
columns and parallel with the channel in column (1).
(e) The zone in which the transmitter of a television station is
located or proposed to be located determines the applicable rules with
respect to co-channel distance separations where the transmitter is
located in a different zone from that in which the channel to be
employed is located.
(f) The distances listed below apply only to allotments and
assignments on Channel 6 (82-88 MHz). The Commission
[[Page 178]]
will not accept petitions to amend the Table of Allotments, applications
for new stations, or applications to change the channel or location of
existing assignments where the following minimum distances (between
transmitter sites, in kilometers) from any FM Channel 253 allotment or
assignment are not met:
Minimum Distance Separation from FM Channel 253 (98.5 MHz)
------------------------------------------------------------------------
TV Zones II
Fm Class TV Zone I & III
------------------------------------------------------------------------
A............................................. 17 22
B1............................................ 19 23
B............................................. 22 26
C3............................................ 19 23
C2............................................ 22 26
C1............................................ 29 33
C............................................. 36 41
------------------------------------------------------------------------
(Secs. 4, 5, 303, 48 Stat., as amended, 1066, 1068, 1082 (47 U.S.C. 154,
155, 303))
[28 FR 13660, Dec. 14, 1963, as amended at 37 FR 25842, Dec. 5, 1972; 44
FR 65765, Nov. 15, 1979; 47 FR 35990, Aug. 18, 1982; 50 FR 23698, June
5, 1985; 51 FR 44070, Dec. 8, 1986; 54 FR 14964, Apr. 14, 1989; 54 FR
16368, Apr. 24, 1989; 54 FR 35340, Aug. 25, 1989]
Sec. 73.611 Reference points and distance computations.
(a) In considering petitions to amend the Table of Allotments
(Sec. 73.606(b)), the following reference points shall be used by the
Commission in determining assignment separations between communities:
(1) Where transmitter sites for the pertinent channels have been
authorized in communities involved in a petition to amend the Table of
Allotments, separations between such communities shall be determined by
the distance between the coordinates of the authorized transmitter sites
in the respective communities as set forth in the Commission's
authorizations therefor.
(2) Where an authorized transmitter site is available for use as a
reference point in one community but not in the other for the pertinent
channels, separations shall be determined by the distance between the
coordinates of the transmitter site as set forth in the FCC's
authorization therefor and the coordinates of the other community as set
forth in the publication of the United States Department of the Interior
entitled, Index to The National Atlas of the United States of America.
If this publication does not contain the coordinates for said other
community, the coordinates of the main post office thereof shall be
used.
(3) Where no authorized transmitter sites are available for use as
reference points in both communities for the pertinent channels, the
distance between the two communities listed in the above publication
shall be used. If said publication does not contain such distance, the
separation between the two communities shall be determined by the
distance between the coordinates thereof as set forth in the
publication. Where such coordinates are not contained in the
publication, the coordinates of the main post offices of said
communities shall be used.
(4) Where the distance between the reference point in a community to
which a channel is proposed to be assigned and the reference point in
another community or communities does not meet the minimum separation
requirements of Sec. 73.610, the channel may be assigned to such
community upon a showing that a transmitter site is available that would
meet the minimum separation requirements of Sec. 73.610 and the minimum
field strength requirements of Sec. 73.685. In such cases, where a
station is not authorized in the community or communities to which
measurements from the proposed channel assignment must be made pursuant
to Sec. 73.610 a showing should also be made that the distance between
suitable transmitter sites in such other community or communities and
the proposed transmitter site for the new channel meet the Commission's
minimum spacing and coverage requirements.
(b) Station separations in licensing proceedings shall be determined
by the distance between the coordinates of the proposed transmitter site
in one community and
(1) The coordinates of an authorized transmitter site for the
pertinent channel in the other community; or, where such transmitter
site is not available for use as a reference point,
(2) The coordinates of the other community as set forth in the Index
to The
[[Page 179]]
National Atlas of the United States of America; or if not contained
therein,
(3) The coordinates of the main post office of such other community.
(4) In addition, where there are pending applications in other
communities which, if granted, would have to be considered in
determining station separations, the coordinates of the transmitter
sites proposed in such applications must be used to determine whether
the requirements with respect to minimum separations between the
proposed stations in the respective cities have been met.
(c) In measuring assignment and station separations involving cities
listed in the Table in combination, where there is no authorized
transmitter site in any of the combination cities on the channel
involved, separation measurements shall be made from the reference point
which will result in the lowest separation.
(d) To calculate the distance between two reference points see
paragraph (c), Sec. 73.208. However, distances shall be rounded to the
nearest tenth of a kilometer.
[52 FR 11655, Apr. 10, 1987]
Sec. 73.612 Protection from interference.
(a) Permittees and licensees of TV broadcast stations are not
protected from any interference which may be caused by the grant of a
new station or of authority to modify the facilities of an existing
station in accordance with the provisions of this subpart. The nature
and extent of the protection from interference accorded to TV broadcast
stations is limited solely to the protection which results from the
minimum allotment and station separation requirements and the rules and
regulations with respect to maximum powers and antenna heights set forth
in this subpart.
(b) When the Commission determines that grant of an application
would serve the public interest, convenience, and necessity and the
instrument of authorization specifies an antenna location in a
designated antenna farm area which results in distance separation less
than those specified in this subpart, TV broadcast station permittees
and licensees shall be afforded protection from interference equivalent
to the protection afforded under the minimum distance separations
specified in this subpart.
Note: The nature and extent of the protection from interference
accorded to TV broadcast stations which were authorized prior to April
14, 1952, and which were operating on said date is limited not only as
specified above but is further limited by any smaller separations
existing between such stations on said date. Where, as a result of the
adoption of the Table of Allotments or of changes in transmitter sites
made by such stations after said date, separations smaller than the
required minimum are increased but still remain lower than the required
minimum, protection accorded such stations will be limited to the new
separations.
[28 FR 13660, Dec. 14, 1963, as amended at 32 FR 8814, June 21, 1967; 50
FR 23698, June 5, 1985; 51 FR 44070, Dec. 8, 1986]
Sec. 73.613 Protection of Class A TV stations.
(a) An application for a new TV broadcast station or for changes in
the operating facilities of an existing TV broadcast station will not be
accepted for filing if it fails to comply with the requirements
specified in this section.
Note to Sec. 73.613 (a):
Licensees and permittees of TV broadcast stations that were
authorized on November 29, 1999 (and applicants for new TV stations that
had been cut-off without competing applications or that were the winning
bidder in a TV broadcast station auction as of that date, or that were
the proposed remaining applicant in a group of mutually exclusive
applications for which a settlement agreement was on file as of that
date) may continue to operate with facilities that do not protect Class
A TV stations. Applications filed on or before November 29, 1999 for a
change in the operating facilities of such stations also are not
required to protect Class A TV stations under the provisions of this
section.
(b) Due to the frequency spacing which exists between TV channels 4
and 5, between channels 6 and 7, and between channels 13 and 14, first-
adjacent channel protection standards shall not be applicable to these
pairs of channels. Some interference protection requirements of this
section only apply to stations transmitting on the UHF TV channels 14
through 51 (See Sec. 73.603(a) of this part).
(c) A UHF TV broadcast station application will not be accepted if
it specifies a site less than 100 kilometers
[[Page 180]]
from the transmitter site of a UHF Class A TV station operating on a
channel which is the seventh channel above the requested channel.
Compliance with this requirement shall be determined based on a distance
computation rounded to the nearest kilometer.
(d) A UHF TV broadcast station application will not be accepted if
it specifies a site less than 32 kilometers from the transmitter site of
a UHF Class A TV station that is authorized an effective radiated power
of more than 50 kilowatts and operating on a channel which is the
second, third, or fourth channel above or below the requested channel.
Compliance with this requirement shall be determined based on a distance
computation rounded to the nearest kilometer.
(e) In cases where a TV broadcast station has been authorized
facilities that do not meet the distance separation requirements of this
section, an application to modify such a station's facilities will not
be accepted if it decreases that separation.
(f) New interference must not be caused to Class A TV stations
authorized pursuant to Subpart J of this part, within the protected
contour defined in Sec. 73.6010 of this part. For this prediction, the
TV broadcast station field strength is calculated from the proposed
effective radiated power and the antenna height above average terrain in
pertinent directions using the methods in Sec. 73.684 of this part.
(1) For co-channel protection, the field strength is calculated
using the appropriate F(50,10) chart from Figure 9a, 10a, or 10c of
Sec. 73.699 of this part.
(2) For TV broadcast stations that do not specify the same channel
as the Class A TV station to be protected, the field strength is
calculated using the appropriate F(50,50) chart from Figure 9, 10, or
10b of Sec. 73.699 of this part.
(g) A TV broadcast station application will not be accepted if the
ratio in dB of its field strength to that of the Class A TV station at
the Class A TV station's protected contour fails to meet the following:
(1) -45 dB for co-channel operations where the Class A TV station
does not specify an offset carrier frequency or where the TV broadcast
and Class A TV stations do not specify different offset carrier
frequencies (zero, plus or minus) or -28 dB for offset carrier frequency
operation where the TV broadcast and Class A TV stations specify
different offset carrier frequencies.
(2) 6 dB when the protected Class A TV station operates on a VHF
channel that is one channel above the requested channel.
(3) 12 dB when the protected Class A TV station operates on a VHF
channel that is one channel below the requested channel.
(4) 15 dB when the protected Class A TV station operates on a UHF
channel that is one channel above or below the requested channel.
(5) 23 dB when the protected Class A TV station operates on a UHF
channel that is fourteen channels below the requested channel.
(6) 6 dB when the protected Class A TV station operates on a UHF
channel that is fifteen channels below the requested channel.
(h) New interference must not be caused to digital Class A TV
stations authorized pursuant to Subpart J of this part, within the
protected contour defined in Sec. 73.6010 of this part. A TV broadcast
station application will not be accepted if the ratio in dB of the field
strength of the digital Class A TV station at the digital Class A TV
station's protected contour to the field strength resulting from the
facilities proposed in the TV broadcast station application fails to
meet the D/U signal ratios for ``analog TV-into-DTV'' specified in
Secs. 73.623(c)(2) and 73.623(c)(3) of this part. For digital Class A TV
station protection, the TV broadcast station field strength is
calculated from the proposed effective radiated power and the antenna
height above average terrain in pertinent directions using the methods
in Sec. 73.684 of this part and using the appropriate F(50,10) chart
from Figure 9a, 10a, or 10c of Sec. 73.699 of this part.
(i) In cases where a TV broadcast station has been authorized
facilities that do not meet the interference protection requirements of
this section, an application to modify such a station's facilities will
not be accepted if it is predicted to cause new interference within the
protected contour of the Class A TV or digital Class A TV station.
[[Page 181]]
(j) In support of a request for waiver of the interference
protection requirements of this section, an applicant for a TV broadcast
station may make full use of terrain shielding and Longley-Rice terrain
dependent propagation methods to demonstrate that the proposed facility
would not be likely to cause interference to Class A TV stations.
Guidance on using the Longely-Rice methodology is provided in OET
Bulletin No. 69, which is available through the Internet at http://
www.fcc.gov/oet/info/ documents/bulletins/69.
[65 FR 3001, May 10, 2000]
Sec. 73.614 Power and antenna height requirements.
(a) Minimum requirements. Applications will not be accepted for
filing if they specify less than -10 dBk (100 watts) horizontally
polarized visual effective radiated power in any horizontal direction.
No minimum antenna height above average terrain is specified.
(b) Maximum power. Applications will not be accepted for filing if
they specify a power which exceeds the maximum permitted boundaries
specified in the following formulas:
(1) Channels 2-6 in Zone I:
ERPMax=102.57-33.24*Log10(HAAT)
And,
-10 dBk ERPMax20 dBk
(2) Channels 2-6 in Zones II and III:
ERPMax=67.57-17.08* Log10 (HAAT)
And,
10 dBk ERPMax20 dBk
(3) Channels 7-13 in Zone I:
ERPMax=107.57-33.24* Log10 (HAAT)
And,
-4.0 dBk ERPMax 25 dBk
(4) Channels 7-13 in Zones II and III:
ERP