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50
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
p. 63.
• Transmitting is impossible during Intercom operation.
• The received signal is muted during Intercom operation.
q
Push and hold
[LO/DX•IC•SCRM]
for 1 sec. to enter In-
tercom mode.
• The optional command microphone power is automatically
turned ON, even if the power is OFF.
w
Push and hold
[LO/DX•IC•SCRM]
for 1 sec. again to call
up the optional command microphone side.
• The transceiver and the optional command 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 func-
tion display.
* “
” or “
” appears on the HM-157.
• To adjust the IC-M504’s speaker output level, rotate
[VOL]
.
• To adjust the HM-162’s speaker output level, rotate
[SELEC-
TOR]
after pushing
[VOL]
on the HM-162.
• To adjust the HM-157’s speaker output level, push
[
Y
]
or
[
Z
]
after pushing
[VOL•
DIM
PA/RX
]
on the HM-157.
r
After releasing
[PTT]
you can hear the response through
the speaker.
t
To return to the normal operation, push
[LO/DX•IC•SCRM]
momentarily.
•
[16•9]
key is also available.
INTERCOM
IC-M504/HM-162
HM-157
Push and hold
for 1 sec.
INTERCOM
TALK
IC-M504 (caller)
HM-157 (listener)
INTERCOM
LISTEN
HM-162 (listener)
Summary of Contents for IC-M504
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