10.Squelch Adjustment – The squelch setting can be used to maximize range or immunity to noise.
a.Turn the transmitter off.
b.Press and hold the SET button until DISPLY shows in the display.
c.Press 
two times to display SQELCH.
d.Press SET and the squelch setting in the middle right of the screen (SQ 10dB) will flash.
e.Press 
to decrease the squelch setting or 
to increase it.
f.Press SET to enter the new setting and return to the main screen.
g. Turn on the transmitter and walk test the unit. Maximum squelch (50dB) maximizes noise immunity but limits the range. Minimum squelch (5dB) will maximize the range but allow more noise to break through the squelch. Never leave the squelch set to 0dB except for testing, white noise will be constantly present on the audio outputs.
h. Repeat to fine tune squelch to the desired setting.
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