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PANEL DESCRIPTION
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q EXTERNAL SPEAKER AND MICROPHONE JACKS
Connect an optional speaker-microphone or headset, if desired.
w VOLUME CONTROL [VOL]
Rotate clockwise to increase and counterclockwise to decrease
volume.
e PTT SWITCH [PTT]
Push and hold to transmit; release to receive.
r MODE SWITCH [MODE]
➥ Push to enter and select set mode for group (p. 12) and voice
scrambler code. (p. 16)
➥ Push and hold for 1 sec. to turn the monitor function ON and
OFF. (p. 8)
t CHANNEL UP SWITCH [Y]
➥ Push to increment the operating channel.
➥ Push and hold to increment the operating channel continu-
ously.
➥ While scanning, changes scanning direction. (p. 14)
y CHANNEL DOWN SWITCH [Z]
➥ Push to decrement the operating channel.
➥ Push and hold to decrement the operating channel continu-
ously.
➥ While scanning, changes scanning direction. (p. 14)
u POWER SWITCH [PWR]
➥ Push to turn the power ON.
➥ Push and hold this key to toggle the key lock function
ON/OFF. (p. 19)
i EXTERNAL DC IN JACK [DC 6V] (p. 6)
Connects the optional AC adapter or cigarette lighter cable for
both operation and battery charging.
IC-4088A_2.qxd 03.6.23 11:58 Page 3 (1,1)