How to Guide

MAINTENANCE AND TROUBLESHOOTING
Due to its rugged design, your radio requires very little maintenance. However, it is a
precision electronic instrument, so you should follow a few precautions:
x If the antenna has been damaged, you should not transmit except in the case of an
emergency. A defective antenna may cause damage to your radio.
x You are responsible for continued FCC technical compliance of your radio.
x You should arrange for periodic performance checks with your dealer.
Problem Things to Try
The radio won’t power on.
Check the power connections.
Check the fuse.
Check the master battery switch and branch circuit that
connect to the radio.
The radio won’t transmit.
Make sure you are not in weather or scan mode.
Make sure you are not trying to transmit on a receive-
only channel (see the channels and frequency tables
beginning on page 37).
Make sure you are transmitting at the correct power
level for this channel (see the channels and frequency
tables beginning on page 37).
Make sure the duration of each transmission is less than
5 minutes.
Noise comes out of the
speaker all the time
Adjust the squelch level; it is probably too low.
I can’t hear anything (no
volume) from the speaker.
Adjust the squelch level; it is probably too high.
I can transmit, but no one
can hear me.
Check your UIC channel settings {see Setting the UIC
channel mode (USA/CAN/INT) on page 4}.
The display flashes, and I
don’t know why.
The display will flash if the radio is in a watch mode or
in scan mode. Try turning off scanning (page 8),
Weather Alert Watch (page 10), or Triple/Dual Watch
(page 13).
I can’t read the display.
Adjust the contrast and backlight brightness level (see page
14).
The display is too bright at
night.
Adjust the backlight brightness level.
Turn off the radio; hold
 button and turn it
back on (see page 14).
I can’t see any words on the
display.
Reset the radio back to the default brightness level: turn
off the radio; hold the
 button and turn it back
on.
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