I Lock Function; I Signal Strength Indicator Function; I Monitor Function; I Vox Function (For On-Board Use Only) - Icom IC-GM1600E 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. 13) 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 VOX function
(FOR ON-BOARD USE ONLY)
The VOX function (voice operated transmission) starts trans-
mission without pushing [PTT] when you speak into micro-
phone; then automatically returns to receive when you stop
speaking (hands-free operation becomes possible).
NOTE: An optional headset and optional headset adapter
(OPC-1392) is required for the VOX operation.
➥ Push and hold [SQL•
MONI
the VOX function ON/OFF while connecting the headset
and optional headset adapter to [MIC/SP] connector.
• "VOX" appears on the LCD while the VOX function turns ON.
• The "VOX gain" and "VOX delay" can be set on the SET mode.
(p. 14)
], then push [Hi/Lo• ] to turn