Intercom Operation; I Intercom Operation - Icom IC-M503 Insrtuction Manual

I Intercom operation

The optional intercom function allows you to talk to the deck
from the cabin. The optional HM-134*
is required for intercom operation.
CROPHONE
*DO NOT connect another remote-control microphone.
Connect an optional HM-134 as described on p. 39.
• Transmitting is impossible during intercom operation.
• The received signal is muted during intercom operation.
q Push and holding [DIMMER] for 1 sec. to enter intercom
mode.
• The HM-134 power is automatically turned ON, even if the power
is OFF.
IC-M503
w Push and hold [DIMMER] again to call up.
• The transceiver and microphone emit call beeps.
e Push and hold the PTT switch and speak at a normal voice
level into the microphone.
• "TALK" or "LSTN" appears on the caller or listener function dis-
play, respectively.

INTERCOM OPERATION

- -
REMOTE CONTROL MI
INT
HM-134
• To adjust the IC-M503's speaker output level, rotate [VOL].
• To adjust the HM-134's speaker output level, push [Y]/[Z] after
pushing [VOL].
IC-M503 (caller)
r After releasing the PTT switch you can hear the response
through the speaker.
t To return to normal operation, push [DIMMER] momentar-
ily.
• Other switches also turn the function OFF, however, the corre-
sponding function is then activated e.g. pushing [16] selects
Channel 16.
• 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.
7
INT
HM-134 (listener)
17