Advanced Features
English
127
Note:
If a call arrives while the radio is in the clock-setting
menu, the radio exits clock setting and displays the call
information. Any changes made before the call is
NOT
saved.
Using the Conventional Squelch Operation
Features
This feature filters out unwanted calls with low signal strength or
channels that have a higher than normal background noise.
Analog Options
Tone Private Line (PL), Digital Private-Line (DPL), and carrier
squelch can be available (preprogrammed) per channel.
Digital Options
One or more of the following options may be preprogrammed in
your radio. Check with your dealer or system administrator for
more information.
Mode
Result
Carrier squelch (C)
You hear all traffic on a channel.
PL or DPL
The radio responds only to your
messages.
Option
Result
Digital Carrier-Operated
Squelch (COS)
You hear any digital traffic.
Normal Squelch
You hear any digital traffic having
the correct network access code.
Selective Switch
You hear any digital traffic having
the correct network access code
and correct talkgroup.
APX_4000_M3.book Page 127 Friday, May 31, 2013 12:41 PM