Sec.  80.874   VHF radiotelephone receiver.

   (a) The receiver used for providing the watch for navaigational safety
   required by  Sec. 80.313 must be certificated by the Commission and capable of
   effective  reception  of  G3E  emission on the frequencies required by
    Sec. 80.871(d) when connected to the antenna specified in  Sec. 80.876.

   (b) The receiver must have a usable sensitivity of 0.5 microvolts.

   (c) The receiver must deliver adequate audio output power to be heard in the
   ambient noise level likely to be expected on board ships with a loudspeaker
   and/or a telephone handset.

   (d) In the simplex mode when the transmitter is activated the receiver
   output must be muted.

   [ 51 FR 31213 , Sept. 2, 1986, as amended at  63 FR 36607 , July 7, 1998]