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The Carrier Squelch indicator appears on the
display when you monitor a channel via the
preprogrammed
Monitor
button.
•
Monitoring a Channel via the selected zone
channel.
a) Select the desired zone and channel.
b) Listen for a transmission.
c) Adjust the
Volume Control Knob
if necessary.
d) Press and hold the
PTT
button to transmit.
The LED lights up solid red.
e) Release the
PTT
button to receive (listen).
Monitoring Conventional Mode
Your radio may be preprogrammed to receive Private-
Line
®
(PL) calls.
1
Momentarily press the
Monitor
button to listen for
activity.
The Carrier Squelch indicator appears on the
display.
2
Press and hold the
Monitor
button to set
continuous monitor operation.
The duration of the button press is programmable.
3
Press the
Monitor
button again, or the
PTT
button, to return to the original squelch setting.
If you try to transmit on a receive-only channel,
you hear an invalid tone until you release the
PTT
button.
General Radio Operation
44
English
Содержание ASTRO APX 1000 Series
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