Audiovox GMRS121-2 - Manual (Page 10)

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Up Channel/Volume Button (6)
In the standby mode, pressing this button will increment the listening
volume. When in function edit mode this button will be used to adjust the
unit’s settings.
Down Channel/Volume Button (7)
In the standby mode, pressing this button will decrement the listening
volume. When in function edit mode this button will be used to adjust the
unit’s settings.
MODE Button (8)
This button is used to select various feature settings in the GMRS and FRS
modes.
Scan Button (10)
With the unit in standby mode, press the Power On/Off Button momentarily
to enable or disable the scan function;
SCAN will appear on the display.
Operating Modes and Features
GRMS/FRS Operation:
- Press and hold the Power On/Off button for 2 seconds to turn on
power.
- Press the MODE button so the Channel number flashes.
- Select the desired channel with the Up (6) and Down (7) Buttons.
When receiving a call, the icon appears to indicate an incoming
call.
- Press and hold the PTT button (2) to transmit, then speak into the
microphone clearly and slowly. The Transmit icon ( ) appears
on the display while the button is pressed.
- Release PTT Button (2) to receive.
- Communication can only be accomplished when the channel of at
least two parties are the same.