E-44
Uniden UM725 Radio Owner’s Manual
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, do not transmit except in an emergency situation.
Doing so may cause further radio damage.
x You are responsible for continued FCC technical compliance of your radio.
x Arrange for periodic performance checks with your Uniden dealer.
Problem Things to Try
The radio won’t turn on.
If you turn the radio on immediately after turning it off, the
power may not turn on due to data saving. Wait for few
seconds and turn it on again.
Check the fuse.
Check polarity.
Check the line voltage (10.5V to 16V).
The radio won’t transmit.
Make sure you are not in Weather mode.
Make sure you are not trying to transmit on a receive-only
channel. See "Marine Radio Channel Chart" on page E-47.
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 transmit, but no one
can hear me.
Check your radio settings. See "Radio Setup" on page E-15.
Does the area you are in use different channel assignments?
I’m not getting hazard
alerts.
Make sure Weather Alert Watch is turned on.
The display ashes, and I
don’t know why.
The channel number on the display will ash if the radio is
in a Watch mode or in Scan mode. Try turning off scanning,
Weather Alert Watch, Triple Watch, or Dual Watch beginning
on Page E-20.
Scan won’t start.
Be sure you have channels saved into into Memory. See
"Scanning Radio Channels" on page E-17.
No beeps sound. Key beep is set to OFF. Turn Key Beep on.
I cannot send DSC calls. Make sure the MMSI (DSC self ID) is entered.
Where can I nd my
radio’s serial number?
The serial number is on a plate on the bottom of the radio or
can be accessed in the ABOUT Menu.
When I turn on the radio,
I get a message that
"POSITION DATA NOT
ACQUIRED"
Check GPS connection and settings.
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