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48
OTHER FUNCTIONS
7
■
Intercom operation
The optional Intercom function allows you to talk to the deck
from the cabin. The optional Command microphone is re-
quired for Intercom operation.
Connect an optional
Command microphone
as described on
page 62.
• Transmitting is impossible while using the intercom.
• The received signal is muted while using the intercom.
q
Push
[POWER] to turn ON the power.
• The optional Command microphone power is automatically
turned ON, even if the power is OFF.
w
Hold down
[LO/DX•IC•SCRM] for 1 second to enter the
Intercom mode.
INTERCOM
IC-M504A/HM-162
HM-157
e
Hold down
[LO/DX•IC•SCRM] for 1 second to sound the
intercom beep.
• The transceiver and the optional Command microphone sound
beeps while holding down
[LO/DX•IC•SCRM].
r
Hold down
[PTT] and speak into the microphone at a nor-
mal voice level.
• “
TALK
” or “
LISTEN
”* appears on the caller or listener function
display, respectively.
* “
” or “
” appears on the HM-157.
• To adjust the IC-M504A’s speaker output level, rotate
[VOL].
• To adjust the HM-162’s speaker output level, rotate
[SELECTOR]
after pushing
[VOL] on the HM-162.
• To adjust the HM-157’s speaker output level, push
[VOL•
DIM
PA/
RX
], then push [
Y
] or [
Z
] on the HM-157.
INTERCOM
TALK
IC-M504A (caller)
HM-157 (listener)
INTERCOM
LISTEN
HM-162 (listener)
t
After releasing
[PTT] you can hear the response through
the speaker.
y
To return to the normal operating mode, push
[CLR] or push
[LO/DX•IC•SCRM] momentarily.
Summary of Contents for IC-M504A
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