West Marine VHF600, User Manual

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Turn SQUELCH fully clockwise. This raises the “Squelch Gate” so high
that only very strong signals can get through.
Turn SQUELCH fully counterclockwise until you hear a hiss. This lowers
the “Squelch Gate” so that everything gets through - noise, weak
signals, and strong signals.
Turn SQUELCH back clockwise until the hiss stops. Now the “Squelch
Gate” allows only strong signals to get through.
Strong Signals
Medium Signals
Weak Signals
Noise
Strong Signals
Medium Signals
Weak Signals
Noise
Strong Signals
Medium Signals
Weak Signals
Noise
Squelch
VHF600_UT921ZH 5/28/04 4:24 PM Page 12