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7
OTHER FUNCTIONS
I Intercom operation
The optional Intercom function allows you to talk to the deck
from the cabin. The optional HM-127
is required for Intercom operation.
CROPHONE
Connect an optional HM-127 as described on pgs. 43, 65.
• Transmitting is impossible during Intercom operation.
• The received signal is muted during Intercom operation.
q Push
[
[
]
LO/DX]
LO/DX
(
• The HM-127 power is automatically turned ON, even if the power
is OFF.
INT
Intercom
IC-M502A
w Push and hold
• 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-M502A's speaker output level, rotate
• To adjust the HM-127's speaker output level, push after
pushing
[
[
Y Y
Y Y
] /
]
[
[
Z Z
Z Z
36
REMOTE-CONTROL MI-
for 1 sec. to enter Intercom mode.
SCR)
(
IC
SCR)
INT
HM-127
[
]
again to call up.
[
LO/DX]
LO/DX
(
SCR)
(
IC
SCR)
]
] .
Intercom
TALK
IC-M502A (caller)
r After releasing the PTT switch you can hear the response
through the speaker.
t To return to the normal operation, push
momentarily.
• Other keys also turn the function OFF, however, the correspond-
ing function is then activated (e.g. pushing
nel 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" ap-
pears and the last received DSC message is displayed
after the Intercom use is finished.
• When a WX alert is received, "WX ALT" blinks and a
beep sounds. The WX alert sounds after the Intercom use
[
[
] .
]
VOL
VOL
is finished.
[
]
[
]
VOL
VOL
INT
INT
HM-127 (listener)
[
[
]
[
LO/DX]
LO/DX
(
SCR)
(
IC
SCR)
] selects Chan-
[
]
16
9
16
9
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