Lock Function; Signal Strength Indicator Function; Monitor Function; Backlit Function - Icom IC-GM1600 Instruction Manual

4

BASIC OPERATION

■ Lock function

This function electronically locks all keys (except for [PTT],
[SQL• ] and [Hi/Lo•
MONI
changes and function access.
➥ Push [Hi/Lo•
and OFF.
Push
for 1 sec.
■ Signal strength indicator
The received signal strength level is indicated by number of
bars as below.
• Only the antenna mark appears when receiving no signal or a very
weak signal when the signal strength indicator is set to ON in the
SET mode (p. 14).
• This indicator can be hidden by using the SET mode (p. 14) if de-
sired.
Indication
Signal
Strong
strength
10
]) to prevent accidental channel
] for 1 sec. to turn the lock function ON
Appears while the lock
function is used.
No signal or
Middle Weak
Very weak

■ Monitor function

The monitor function releases the noise squelch mute to
check the volume level. See p. 12 for details of the monitor
switch action.
➥ Push [SQL•
] for 1 sec. and keep holding to activate
MONI
the monitor function.
• " " appears and audio is emitted.

■ Backlit function

This function is convenient for night time operation. The
backlit brightness can be adjusted in the SET mode. (p. 12)
➥ Push any key except for [PTT] to turn the backlit ON.
• " " appears and audio is emitted. The backlit is automatically
turned OFF after 5 sec. of inactivity.