Motorola DP 4400 UHF - Manual (Page 30)

Receiving and Making Calls
English
22
Monitoring Features
Monitoring a Channel
Use the Monitor feature to make sure a channel is free before
transmitting.
NOTE: This feature is not applicable in Capacity Plus and
Linked Capacity Plus.
Procedure:
1 Press and hold the programmed Monitor button and listen
for activity.
2 You hear radio activity or total silence, depending on how
your radio is programmed.
3 When you hear “white noise” (that is, the channel is free),
press the PTT button to talk and release it to listen. The LED
lights up solid yellow.
Permanent Monitor
Use the Permanent Monitor feature to continuously monitor a
selected channel for activity.
NOTE: This feature is not applicable in Capacity Plus and
Linked Capacity Plus.
Procedure:
1 Press the programmed Permanent Monitor button.
2 Radio sounds alert tone, and the LED lights up solid yellow.
3 Press the programmed Permanent Monitor button to
remove the radio from permanent monitor mode.
4 Radio sounds an alert tone and the LED turns off.
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