Using The Radio In Normal Mode; Table 5 - Normal Mode Status Messages - Uniden UM455 Owner's Manual

How It Works

Table 5 - Normal mode status messages

Message Meaning
GPS Data OK The radio is receiving valid GPS data.
Check GPS The radio is not receiving valid GPS data: check the GPS status screen and
the GPS connection.
Input Position The radio has been unable to receive valid GPS data for at least four hours;
it can no longer track your position. You need to manually input your position
(see Setting the GPS position manually on page 22).
Battery Low The battery voltage output is too low (below 10 VDC).
Battery High The battery voltage output is too high (above 17 VDC).

Using the radio in normal mode

• To transmit, press and hold
when you are finished talking.
• For the best sound quality, hold the microphone about two inches from your mouth
while you're talking.
• Press
CHANNEL UP
Press and hold either button to scroll quickly up the channels.
• Press
CHANNEL DOWN
time. Press and hold either button to scroll quickly down the channels.
• To change the transmit power, press and hold the
transmit power switches between 1 watt and 25 watts each time you press and hold
ENT-1W/25W.
PUSH TO TALK
on the radio or the microphone to move up one channel at a time.
on the radio or the microphone to move down one channel at a
on the microphone. Release the button
ENT-1W/25W
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for two seconds. The