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19
7
INTERCOM OPERATION
(IC-M402 only)
■
Intercom operation
The optional intercom function allows you to talk to the deck
from the cabin. The
optional HM-127
REMOTE
-
CONTROL MI
-
CROPHONE
is required
for intercom operation.
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.
w
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 voice
level into the microphone.
• “TALK” or “LSTN” appears on the caller or listener function dis-
play, respectively.
•To adjust the IC-M402’s speaker output level, rotate [VOL].
• To adjust the HM-127’s speaker output level, push [
Y
]/[
Z
] after
pushing [VOL] on the HM-127.
r
After releasing the PTT switch you can hear the response
through the speaker.
t
To return to normal operation, push [DSC] momentarily.
• Other switches also turn the function OFF, however, the corre-
sponding function 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 is
in transmit condition, the intercom function is not avail-
able.
•
When a DSC call is received, “DSC received” appears
and the last received DSC message is displayed after the
intercom use is finished.
•
When a WX alert is received, “WX ALT” flashes and a
beep sounds. The WX alert sounds after the intercom use
is finished.
INT
HM-127
IC-M402
INT
HM-127 (listener)
IC-M402 (caller)
00_IC-M402_S.qxd 02.2.21 0:08 PM Page 19 (1,1)
Summary of Contents for IC-M402
Page 1: ...IC M402 ...
Page 30: ...24 9 INSTALLATION AND MAINTENANCE er s d at at n y EXAMPLE ...
Page 43: ...HONE Cap ut ...
Page 47: ......
Page 48: ...42 14 MB 69 HM 127 TEMPLATE Unit mm inch MB 69 ...
Page 49: ...44 15 OPTION r t M x ...
Page 50: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan ...