Using Conventional Squelch Operation Features; Using The Pl Defeat Feature - Motorola APX 400Li 1 User Manual

1 Hold down the PTT button longer than the
preprogrammed time.
You hear a short, low-pitched warning tone, the
transmission is cut-off, and the LED goes out until
you release the PTT button.
2 Release the PTT button.
The timer resets.
3 To re-transmit, press the PTT button.
The time-out timer restarts and the LED lights up
solid red.

Using 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.
Mode
Carrier squelch (C)
All manuals and user guides at all-guides.com
Result
You hear all traffic on a
channel.
Mode
PL or DPL
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.
Option
Digital Carrier-Operated
Squelch (COS)
Normal Squelch
Selective Switch

Using the PL Defeat Feature

This feature allows you to override any coded squelch
(DPL or PL) that might be preprogrammed to a
Result
The radio responds only
to your messages.
Result
You hear any digital
traffic.
You hear any digital
traffic having the correct
network access code.
You hear any digital
traffic having the correct
network access code and
correct talkgroup.
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