§ 80.99   Radiotelegraph station identification.

   This section applies to coast, ship and survival craft stations
   authorized to transmit in the band 405-525 kHz.

   (a) The station transmitting radiotelegraph emissions must be
   identified by its call sign. The call sign must be transmitted with the
   telegraphy emission normally used by the station. The call sign must be
   transmitted at 20 minute intervals when transmission is sustained for
   more than 20 minutes. When a ship station is exchanging public
   correspondence communications, the identification may be deferred until
   completion of each communication with any other station.

   (b) The requirements of this section do not apply to survival craft
   stations when transmitting distress signals automatically or when
   operating on 121.500 MHz for radiobeacon purposes.

   (c) Emergency position indicating radiobeacon stations do not require
   identification.

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