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change, select Exit. The radio returns to the channel list.
5.
To restore a channel back to its original name, select the channel and choose Default.
6.
When you are satisfied with the channel list, select Exit.
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:
If the antenna has been damaged, do not transmit except in an emergency situation.
x
Doing so may cause further radio damage.
You are responsible for continued FCC technical compliance of your radio.
x
Arrange for periodic performance checks with your Uniden dealer.
x
COMMOn qUestiOns
Problem
The radio won't turn on.
The power LED on the charger
doesn't turn on.
The radio won't transmit.
I can't hear anything from the
speaker.
Noise comes out of the
speaker all the time
I can transmit, but no one can
hear me.
I'm not getting hazard alerts.
The display flashes, and I don't
know why.
Where can I find my radio's
serial number?
Things to Try
Charge the radio.
- Don't use the charger when the ambient temperature is below 0° C (32°
F) or above 45° C (113° F).
- Make sure the charging contacts on the radio and charger are clean.
- Replace the battery.
- Make sure you are not in Weather or Scan mode.
- Make sure you are not trying to transmit on a receive-only channel or
transmit at the wrong power level for this channel (see the channel lists
starting on page E-33.
- Check the battery power level; if it's low, charge the battery before trying
to transmit.
- Make sure the duration of each transmission is less than 5 minutes.
Adjust the squelch level; it is probably too high.
Adjust the squelch level; it is probably too low.
Check your UIC channel settings: does the area you are in use different
channel assignments?
Make sure Weather Alert Watch is turned on.
The channel number on the display will flash 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-10.
The serial number is on a plate inside the battery compartment.
Uniden MHS235 Radio Owner's Manual
E-31
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