Sec.  80.1087   Ship radio equipment—Sea area A1.

   This section contains the additional equipment requirements for ships that
   remain within sea area A1 at all times.

   (a) In addition to meeting the requirements of  Sec. 80.1085, ships engaged on
   voyages exclusively in sea area A1 must be provided with a radio
   installation capable of initiating the transmission of ship-to-shore
   distress alerts from the position from which the ship is normally navigated,
   operating either:

   (1) On VHF using DSC; or

   (2) Through the polar orbiting satellite service on 406.0–406.1 MHz or the
   INMARSAT–E service in the 1.6 GHz band (this requirement may be fulfilled by
   the EPIRB required by  Sec. 80.1085(a)(6), either by installing the EPIRB close
   to, or by allowing remote activation from, the position from which the ship
   is normally navigated); or

   (3) On MF using DSC if the ship is engaged on voyages within coverage of MF
   coast stations equipped with DSC; or

   (4) On HF using DSC; or

   (5) Through the INMARSAT geostationary satellite service if within INMARSAT
   coverage. This requirement may be fulfilled by an INMARSAT ship earth
   station capable of two way communication.

   (b) The VHF radio installation, required by  Sec. 80.1085(a)(1), must also be
   capable of transmitting and receiving general radiocommunications using
   radiotelephony.

   [ 51 FR 31213 , Sept. 2, 1986, as amended at  68 FR 46977 , Aug. 7, 2003;  69 FR 64680 , Nov. 8, 2004]