ICOM 269700 사용자 설명서

36

7

■ 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 pgs. 43, 65.

• Transmitting is impossible during Intercom operation.
• The received signal is muted during Intercom operation.

q Push 

for 1 sec. to enter Intercom mode.

• The HM-127 power is automatically turned ON, even if the power

is OFF.

w Push and hold 

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-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

].

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 

] selects Chan-

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
is finished.

Intercom

INT

TALK

IC-M502A (caller)

HM-127 (listener)

Intercom

INT

IC-M502A

HM-127