IC-M402 - ICOM Canada

7 INTERCOM OPERATION (IC-M402 only)■ Intercom operationThe optional intercom function allows you to talk to the deckfrom the cabin. The optional HM-127 REMOTE-CONTROL MI-CROPHONE is required for intercom operation.IC-M402 (caller)INTHM-127 (listener)Connect an optional HM-127 as described on p. 36.•Transmitting is impossible during intercom operation.•The received signal is muted during intercom operation.q Push [DSC] for 1 sec. to enter intercom mode.•The HM-127 power is automatically turned ON, even if the HM-127 power is OFF.IC-M402w Push and hold [DSC] again to call up.•The transceiver and microphone emit call beeps.e Push and hold the PTT switch and speak at a normal voicelevel into the microphone.•“TALK” or “LSTN” appears on the caller or listener function display,respectively.•To adjust the IC-M402’s speaker output level, rotate [VOL].•To adjust the HM-127’s speaker output level, push [Y]/[Z] afterpushing [VOL] on the HM-127.INTHM-127r After releasing the PTT switch you can hear the responsethrough the speaker.t To return to normal operation, push [DSC] momentarily.•Other switches also turn the function OFF, however, the correspondingfunction is then activated e.g. pushing [16] selects Ch 16.•While in the intercom mode, the transceiver functions(transmit and receive) are interrupted. If the transceiver isin transmit condition, the intercom function is not available.•When a DSC call is received, “DSC received” appearsand the last received DSC message is displayed after theintercom use is finished.•When a WX alert is received, “WX ALT” flashes and abeep sounds. The WX alert sounds after the intercom useis finished.19