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GMRS-21X Operation
Power On-Volume:
Turn the radio on by rotating the on/off - volume control
clockwise until you hear a click. Continue to move the
control until a desired listening level is obtained.
Transmit:
CAUTION!
OPERATION OF THE TRANSMITTER WITHOUT
A PROPER ANTENNA INSTALLED MAY RESULT
IN PERMANENT DAMAGE TO THE RADIO
Using the switch at the top of the radio, select the desired
channel - Channel A (462.575 MHz) or Channel B
(462.625 MHz).
Press the monitor button to monitor the channel for
activity. To avoid interrupting another user, make sure
the channel is clear before you begin transmitting.
NOTE: Federal Communications Commission Rules
and Regulations require that you monitor a channel for
activity before transmitting.
NOTE: When the radio’s top-mounted LED is not illumi-
nated, the radio is indicating a “clear” channel. It will
glow amber if activity is present.
When the channel is clear, hold the radio upright with the
antenna vertical and the front microphone area about 2-3
inches from the mouth, keeping the antenna away from the
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