Federal Communications Commission § 80.108

once every 15 minutes during radio- § 80.104 Identification of trans- telephone communications. missions not authorized. (f) VHF public coast stations licensed This section applies to all maritime to serve a predetermined geographic radar transmitters except service area are not required to provide stations. station identification under this sec- (a) Radar transmitters must not tion. A site-based VHF public coast transmit station identification. station may identify by means of the (b) [Reserved] approximate geographic location of the OPERATING PROCEDURES— or the area it serves when it is STATIONS the only VHF public coast station serv- ing the location or there will be no § 80.105 General obligations of coast conflict with the identification of any stations. other station. Each coast station or marine-utility [51 FR 31213, Sept. 2, 1986, as amended at 52 station must acknowledge and receive FR 35244, Sept. 18, 1987; 68 FR 46961, Aug. 7, all calls directed to it by ship or air- 2003; 69 FR 64671, Nov. 8, 2004] craft stations. Such stations are per- mitted to transmit safety communica- § 80.103 Digital selective calling (DSC) tion to any ship or . operating procedures. VHF (156–162 MHz) and AMTS (216–220 (a) Operating procedures for the use MHz) public coast stations may provide fixed or hybrid services on a co-pri- of DSC equipment in the maritime mo- mary basis with mobile operations. bile service are as contained in ITU–R M.541–9 (incorporated by reference, see [65 FR 77824, Dec. 13, 2000] § 80.7), and subpart W of this part. § 80.106 Intercommunication in the (b) When using DSC techniques, coast mobile service. stations and ship stations must use maritime mobile service identities (a) Each public coast station must exchange radio communications with (MMSI) assigned by the Commission or any ship or aircraft station at sea; and its designees. each station on shipboard or aircraft at (c) DSC acknowledgment of DSC dis- sea must exchange radio communica- tress and safety calls must be made by tions with any other station on ship- designated coast stations and such ac- board or aircraft at sea or with any knowledgment must be in accordance public coast station. with procedures contained in ITU–R (b) Each public coast station must M.541–9 (incorporated by reference, see acknowledge and receive all commu- § 80.7). Nondesignated public and pri- nications from mobile stations directed vate coast stations must follow the to it, transmit all communications de- guidance provided for ship stations in livered to it which are directed to mo- ITU–R M.541–9 (incorporated by ref- bile stations within range in accord- erence, see § 80.7), with respect to DSC ance with their tariffs. Discrimination ‘‘Acknowledgment of distress calls’’ in service is prohibited. and ‘‘Distress relays.’’ (See subpart W § 80.107 Service of private coast sta- of this part.) tions and marine-utility stations. (d) Group calls to vessels under the A private coast station or a marine- common control of a single entity are utility station is authorized to trans- authorized. A group call identity may mit messages necessary for the private be created from an MMSI ending in a business and operational needs of ships zero, assigned to this single entity, by and the safety of aircraft. deleting the trailing zero and adding a leading zero to the identity. § 80.108 Transmission of traffic lists by coast stations. [68 FR 46961, Aug. 7, 2003, as amended at 73 FR 4480, Jan. 25, 2008; 76 FR 67610, Nov. 2, (a) Each coast station is authorized 2011] to transmit lists of call signs in alpha- betical order of all mobile stations for which they have traffic on hand. These

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