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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 through.
Strong Signals
Medium Signals
Weak Signals
Noise