VHF radiotelephone receiver.

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