Using The Conventional Squelch Operation Features; Analog Options - Motorola ASTRO APX 6000 Series Quick Reference Card

The timer is defaulted at 60 seconds, but it can be
preprogrammed from 3 to 120 seconds, in 15-second intervals,
or it can be disabled entirely for each radio mode, by a qualified
radio technician.
Note: You will hear a brief, low-pitched, warning tone four
seconds before the transmission times out.
Procedure:
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
Press the PTT button to re-transmit. The time-out timer
restarts and the LED lights up solid red.
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.
Mode
Carrier squelch (C) You hear all traffic on a channel.
The radio responds only to your
PL or DPL
messages.
Result
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English