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CLEAR/
MONITOR
BUTTON
Serves several purposes
depending on the operating
mode. In trunked mode, the
CLEAR/MONITOR button exits
the current operation and
removes all displays associated
with it. The radio and display
then return to the group receive
state. In conventional mode,
pressing this button unmutes the
receiver so activity on the
selected channel can be
monitored. When pressed and
held for approximately 3
seconds, this button toggles
conventional channel
decoding/encoding (Channel
Guard, Digital Channel Guard)
on and off if programmed for the
selected channel.
PUSH-TO-
TALK BUTTON
(PTT)
Enables the radio's transmitter
for voice communication.
Releasing PTT returns the radio
to the receive mode.