I Lock Function; I Signal Strength Indicator; I Monitor Function; I Backlighting Function - Icom iGM1600 Instruction Manual

4
BASIC OPERATION

I Lock function

This function electronically locks all switches (except for
[PTT], [SQL• ] and [Hi/Lo•
MONI
channel changes and function access.
➥ Push [Hi/Lo•
] for 1 sec. to turn the lock function ON
and OFF.
Push
for 1 sec.

I Signal strength indicator

function
The received signal strength level is indicated by number of
bars as below.
This indicator can be hidden by using the set mode (p. 14) if
desired.
Indication
Signal
Strong
strength
10
]) to prevent accidental
Appears while the
lock function is used.
No signal or
Middle Weak
very weak

I 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. to activate the monitor function.
MONI
• " " appears and audio is emitted.

I Backlighting function

This function is convenient for nighttime operation. The back-
lighting brightness can be adjusted in the SET mode. (p. 12)
➥ Push any switch except for [PTT] to turn the backlighting
ON.
• The backlighting is automatically turned OFF after 5 sec. of
inactivity.