47 Telecommunication 5 2000-10-01 2000-10-01 false Frequencies for automated systems. 80.385 Section 80.385 Telecommunication FEDERAL COMMUNICATIONSCOMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES STATIONS IN THE MARITIME SERVICES Frequencies Automated Systems
ยง 80.385 Frequencies for automated systems.

This section describes the carrier frequencies for the Automated Maritime Telecommunications System (AMTS) and for other automated multi-station systems.

(a) Automated Maritime Telecommunications System (AMTS). (1) The Automated Maritime Telecommunications System (AMTS) is an integrated and interconnected maritime communications system.

(2) The following carrier frequency pairs are available for radiotelephony, facsimile and teleprinter communications. AMTS operations must not cause harmful interference to the U.S. Navy SPASUR system which operates in the band 216.880-217.080 MHz.

Channel No. Carrier frequency (MHz) Ship transmit 1 Coast transmit 2 Group 101 216.0125 D 102 216.0375 103 216.0625 104 216.0875 105 216.1125 106 216.1375 107 216.1625 108 216.1875 109 216.2125 110 216.2375 111 216.2625 112 216.2875 113 216.3125 114 216.3375 115 216.3625 116 216.3875 117 216.4125 118 216.4375 119 216.4625 120 216.4875 121 216.5125 C 122 216.5375 123 216.5625 124 216.5875 125 216.6125 126 216.6375 127 216.6625 128 216.6875 129 216.7125 130 216.7375 131 216.7625 132 216.7875 133 216.8125 134 216.8375 135 216.8625 136 216.8875 137 216.9125 138 216.9375 139 216.9625 140 216.9875 141 219.0125 217.0125 B 142 219.0375 217.0375 143 219.0625 217.0625 144 219.0875 217.0875 145 219.1125 217.1125 146 219.1375 217.1375 147 219.1625 217.1625 148 219.1875 217.1875 149 219.2125 217.2125 150 219.2375 217.2375 151 219.2625 217.2625 152 219.2875 217.2875 153 219.3125 217.3125 154 219.3375 217.3375 155 219.3625 217.3625 156 219.3875 217.3875 157 219.4125 217.4125 158 219.4375 217.4375 159 219.4625 217.4625 160 219.4875 217.4875 161 219.5125 217.5125 A 162 219.5375 217.5375 163 219.5625 217.5625 164 219.5875 217.5875 165 219.6125 217.6125 166 219.6375 217.6375 167 219.6625 217.6625 168 219.6875 217.6875 169 219.7125 217.7125 170 219.7375 217.7375 171 219.7625 217.7625 172 219.7875 217.7875 173 219.8125 217.8125 174 219.8375 217.8375 175 219.8625 217.8625 176 219.8875 217.8875 177 219.9125 217.9125 178 219.9375 217.9375 179 219.9625 217.9625 180 219.9875 217.9875 1 Ship transmit frequencies in Group C and D are not authorized for AMTS use. 2 Coast station operation on frequencies in Groups C and D are not currently assignable and are shared on a secondary basis with the Low Power Radio Service in part 95 of this chapter. Frequencies in the band 216.750-217.000 MHz band are available for low power point-to-point network control communications by AMTS coast stations under the Low Power Radio Service (LPRS). LPRS operations are subject to the conditions that no harmful interference is caused to the United States Navy's SPASUR radar system (216.88-217.08 MHz) or to TV reception within the Grade B contour of any TV channel 13 station or within the 68 dBu predicted contour of any low power TV or TV translator station operating on channel 13.

(3) Channels in the 219-220 MHz band are also used on a secondary, non-interference basis by amateur stations participating in digital message forwarding systems. Amateur stations may not cause harmful interference to AMTS operations and must accept any harmful interference from AMTS operation. Amateur stations within 80 km (50 miles) of an AMTS coast station must obtain written approval from the AMTS licensee prior to operating in the 219-220 MHz band. Amateur stations within 640 km (398 miles) of an AMTS coast station must notify the AMTS licensee in writing at least 30 days prior to initiation of operations in the 219-220 MHz band. All amateur stations must notify the American Radio Relay League in writing at least 30 days prior to initiation of operations in the 219-220 MHz band (ARRL, 225 Main St., Newington, CT 06111-1494).

(b) Narrowband operations in AMTS. AMTS licensees may operate on frequencies offset from the assignable channels specified in paragraph (a)(2) of this section provided such licensees are also licensed for channels on each side of the offset frequency. Licensees using offset frequencies must conform with all other conditions of operation.

(c) Automated multi-station system. Great Lakes Region. The following table describes the assignable carrier frequency pairs to provide communication services including automated calling, teleprinter and facsimile:

Channel designator Carrier frequency (MHz) Ship transmit Coast transmit 17 None 1 156.850 84 157.225 161.825 85 157.275 161.875 86 157.325 161.925 87 157.375 161.975 1 The frequency 156.850 MHz is used only to transmit scheduled weather broadcasts. [51 FR 31213, Sept. 2, 1986, as amended at 54 FR 29041, July 11, 1989; 56 FR 3783, Jan. 31, 1991; 57 FR 26780, June 16, 1992; 60 FR 15687, Mar. 27, 1995; 61 FR 46566, Sept. 4, 1996]
Alaska Fixed Stations