Icom 4088A Instruction Manual - Page 14

Basic Operation

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4 BASIC OPERATION I Power ON ➥ Push [PWR] for 1 sec. to turn the power ON. • " " and operating channel number appear on the display. [PWR] I Adjusting the volume q Push and hold [MODE] for 1 sec. to open the squelch (monitor function ON). • " " indicator appears on the display while the squelch is open. w Adjust the audio to a suitable level using [VOL]. e Push and hold [MODE] for 1 sec. to close the squelch. [VOL] Appears [MODE] ✔ What is squelch? A squelch circuit allows muting of undesired noise while receiving no signal and emit audio while receiving signals. This provides quiet standby. The [MODE] key changes the squelch setting. This is useful to listen to weak signals that do not open the squelch. 8

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8
4
BASIC OPERATION
■
Power ON
➥
Push [PWR] for 1 sec. to turn
the power ON.
•“ ”
and operating channel num-
ber appear on the display.
■
Adjusting the volume
q
Push and hold [MODE] for
1 sec. to open the squelch
(monitor function ON).
•“
”
indicator appears on the dis-
play while the squelch is open.
w
Adjust the audio to a suitable
level using [
VOL
].
e
Push and hold [MODE] for
1 sec. to close the squelch.
✔
What is squelch
?
A squelch circuit allows muting of undesired noise while receiving
no signal and emit audio while receiving signals.
This provides quiet standby. The [MODE] key changes the
squelch setting. This is useful to listen to weak signals that do
not open the squelch.
[PWR]
[MODE]
Appears
[VOL]