Monitor Feature; Monitoring A Channel; Monitoring Conventional Mode - Motorola APX Series User Manual

Monitor Feature

The monitor feature is used to make sure that a channel is
clear before transmitting.
The lack of static on a digital channel when the users
switch from analog to digital radios is not an indication that
the radio is malfunctioning.
Digital technology quiets the transmission by removing the
noise from the signal and allows only the clear voice or
data information to be heard.

Monitoring a Channel

• Monitoring a Channel using the Monitor and
Volume Set button.
a. Press the preprogrammed Monitor button.
The Carrier Squelch indicator appears on the
display when you monitor a channel using the
preprogrammed Monitor button.
b. Press and hold the Volume Set button to hear
the volume set tone.
c. Adjust the Volume Control Knob if necessary.
d. Release the Volume Set button.
e. Press and hold the PTT button to transmit.
The LED lights up solid red.
f. 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.
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