10
4
BASIC OPERATION
4
■ Lock function
This function electronically locks all keys (except for [PTT],
[SQL•
MONI] and [Hi/Lo• ]) to prevent accidental channel
changes and function access.
➥ Push [Hi/Lo• ] for 1 sec. to turn the lock function ON
and OFF.
■ 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.
■ 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•MONI] for 1 sec. and keep holding to activate
the monitor function.
•“ ” appears and audio is emitted.
■ Backlighting function
This function is convenient for nighttime operation. The back-
lighting brightness can be adjusted in the SET mode. (p. 12)
➥ Push any key except for [PTT] to turn the backlighting ON.
• The backlighting is automatically turned OFF after 5 sec. of
inactivity.
■
VOX function (FOR ON-BOARD USE ONLY)
The VOX function (voice operated transmission) starts trans-
mission without pushing [PTT] when you speak into the mi-
crophone; then automatically returns to receive when you
stop speaking (hands-free operation becomes possible).
NOTE: An optional headset and headset adapter (OPC-
1392) is required for the VOX operation.
➥ Push and hold [SQL•
MONI], then push [Hi/Lo• ] to turn
the VOX function ON/OFF while connecting the optional
headset and headset adapter to the [MIC/SP] connector.
• “VOX” appears on the LCD while the VOX function is ON.
• The “VOX gain” and “VOX delay” can be set in the SET mode.
(pgs. 14 and 15)
function is used.
for 1 sec.
