8
UHF CB - OPERATION
SELECTING A CHANNEL
TO TRANSMIT AND RECEIVE
The GPS 105 uses the 40 UHF-CB Channels. For your reference a list of the available channels and corresponding
frequencies is printed on page 26.
To select a desired channel in UHF-CB Mode:
1. Press
or
momentarily to step up or down a channel.
2. Press and hold
or
to rapidly step up or down channels.
1. Before you transmit, listen for activity on the selected channel.
2. When the channel is clear, press and hold the PTT to transmit.
‘TX’ will flash on the LCD.
3. Hold the microphone approximately 5 cm in front of your mouth.
Speak in a clear, normal conversational voice.
4. When you have finished speaking, release the PTT and listen for a response. 'TX' then disappears on the LCD.
While receiving, the 'BUSY' icon will flash on the display.
Transmit will not occur if: The unit detects that the channel is busy when using the
CTCSS function with BCLO (page11).
