Sec.  80.519   Station identification.

   (a)  Stations must identify transmissions by announcing in the English
   language the station's assigned call sign. In lieu of the identification of
   the  station  by  voice,  the official call sign may be transmitted by
   tone-modulated telegraphy in international Morse Code manually or by means
   of an automatic device approved by the Commission. Transmissions on the
   navigation  frequency  (156.650 MHz) by stations on drawbridges may be
   identified  by use of the name of the bridge in lieu of the call sign.
   Identification must be made:

   (1) At the beginning and end of each exchange of communications and;

   (2)  At  intervals  not exceeding 15 minutes whenever transmissions or
   communications are sustained for more than 15 minutes.

   (b)  Marine  utility  stations, private coast stations, and associated
   hand-held radios, when exchanging communications, may be identified by a
   unit identifier in lieu of the call sign. Identification by transmission of
   the assigned call sign must be at the end of the exchange or at least once
   every 15 minutes.

   [ 51 FR 31213 , Sept. 2, 1986, as amended at  62 FR 40308 , July 28, 1997]

Subpart L—Operational Fixed Stations