36
7
OTHER FUNCTIONS
■ Intercom operation
The optional intercom function allows you to talk with a dis-
tance place such as the deck from the cabin. The optional
HM-134
REMOTE-CONTROL MICROPHONE is required for in-
tercom operation.
Connect an optional HM-134 as described on p. 61.
• Transmitting is impossible during intercom operation.
• The received signal is muted during intercom operation.
q Push [F], then push [9 IC] to enter intercom mode.
• The HM-134 power is automatically turned ON, even if the power
is OFF.
w Push and hold [9 IC] again to call up.
• The transceiver and microphone emit call beeps.
e Push and hold [PTT] and speak at a normal voice level into
the microphone.
• “TALK” or “LISTEN” appears on the caller or listener function dis-
play, respectively.
• To adjust the IC-M601’s speaker output level, rotate [VOL].
• To adjust the HM-134’s speaker output level, push [Y]/[Z] after
pushing [VOL].
r After releasing [PTT] you can hear the response through
the speaker.
t
To return to normal operation, push [CLR] or repeat step q.
•While in the intercom mode, the transceiver functions
(transmit and receive) are interrupted. If the transceiver is
in transmit condition, the intercom function is not avail-
able.
•When a DSC call is received, the intercom function is in-
terrupted with an automatic return to the transceiver
mode. The transceiver’s display indicates ‘Receiving DSC
calls.’ (p 27)
