Uniden UM385 Owner's Manual page 17

including any noise on the channel. Setting the squelch level higher filters out channel
noise and lets only actual radio transmissions through.
While listening to a channel, adjust the SQUELCH knob until the noise is filtered out and
you can only hear the transmission. If you switch to a channel with a lot of noise or with a
weak transmission, you may need to adjust the squelch level again.
# NOTE: Setting the squelch level too high may prevent you from hearing weaker
transmissions. If you are having difficulty hearing a transmission, try setting the squelch
level lower.
Press CHANNEL UP and CHANNEL DOWN briefly to scroll through the channels one channel
Changing the Channel
at a time. Press and hold CHANNEL UP or CHANNEL DOWN to quickly scroll through the
channels.
To make a transmission, press and hold the microphone PUSH TO TALK button. Release the
Making a Transmission
PUSH TO TALK button when you're finished talking to let the other party respond.
x To prevent stuck microphone problems or situations where PUSH TO TALK is pushed
accidentally, the radio limits your talk time to 5 minutes in a single transmission. If you
talk for over 5 minutes continuously, the display shows RELEASE MIC BUTTON.
x For the best sound quality, hold the microphone about two inches away from your
mouth.
x You cannot transmit while the radio is in weather mode or scan mode.
x See the channel lists beginning on page 36 for a list of receive-only channels.
In most situations, the 1 Watt transmission power is all you need. If you find yourself far
Boosting the Transmission Power
away from other stations and have trouble getting a response, you may need to boost the
transmission power from 1 Watt to 25 Watts:
1. Select the channel you want to transmit on.
2. Push and hold ENT-1W/25W for two seconds. The display shows 25 Watts in the
upper left hand corner.
3. The transmit power remains at 25 Watts until you change the setting back. Push
and hold ENT-1W/25W for two seconds. The display shows 1 Watt.
Strong signals
Weak signals
Noise
Medium
No
Squelch
Squelch
High
Squelch
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