How to Adjust the Squelch on the Uniden PC78 Elite CB Radio

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By eHow Contributing Writer

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Adjusting the squelch on your Uniden PC78 eliminates background noises in the absence of an incoming signal. Follow these steps.

Difficulty: Easy

Instructions

Step 1

Check that the power source and microphone are correctly connected to your CB radio.
Step 2

Verify that the antenna is correctly attached to your CB radio.
Step 3

Power on your Uniden CB radio.
Step 4

Turn the volume to an appropriate level.
Step 5

Find the "Squelch" knob located to the right of the "Power/Volume" knob.
Step 6

Turn the knob clockwise so your CB will receive only strong signals.
Step 7

Turn the knob counterclockwise until you detect a hiss.
Step 8

Now rotate the knob clockwise once again until the hissing abates. Your CB should now receive only clear, strong signals.