NVR-3000 OPERATION MANUAL & INSTALLATION MANUAL
NVR-3000 OM.E 20210412-02
31
Handset Operation
The handset controls voice communications. Press the PTT (push-to-talk) switch to talk, and release it to listen for
response.
①
Pick up the handset.
②
Hold the handset close to your mouth, press the
PTT
switch and speak clearly.
3.4 Receive
Squelch on/off
The squelch mutes the noise output in the absence of an incoming signal. Click
[SQL]
to alternately turn squelch
on and off in
[MENU]
–
[SYSTEM SETTING]
-
[AUDIO]
menu. When radio noise is too jarring during stand-by
condition, it can be muted by activating the squelch, and the threshold value
(
1~10
)
is displayed on Main screen.
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