Sec.  80.956   Required frequencies and uses.

   (a) Each VHF radiotelephone installation must be capable of transmitting and
   receiving G3E emission as follows:

   (1) Channel 16—156.800 MHz-Distress, Safety and Calling; and

   (2) Channel 6—156.300 MHz—Primary intership.

   (b) The radiotelephone station must have additional frequencies as follows:

   (1) Those ship movement frequencies appropriate to the vessel's area of
   operation:  Channel 11—156.550 MHz, Channel 12—156.600 MHz, or Channel
   14—156.700 MHz.

   (2) The navigational bridge-to-bridge frequency, 156.650 MHz (channel 13).

   (3) Such other frequencies as required for the vessel's service.

   (4) One channel for receiving marine navigational warnings for the area of
   operation.

   (c) Every radiotelephone station must include one or more transmitters, one
   or more receivers, one or more sources of energy and associated antennas and
   control equipment. The radiotelephone station, exclusive of the antennas and
   source of energy, must be located as high as practicable on the vessel,
   preferably  on  the bridge, and protected from water, temperature, and
   electrical and mechanical noise.

   [ 51 FR 31213 , Sept. 2, 1986, as amended at  53 FR 17052 , May 13, 1988]