Turn the squelch knob either clockwise or counterclockwise until the noise stops. Go no further than just where it stops. If that doesn't work there may be a defect. If there's no knob, look in program options for "squelch" and set it progressively higher until the noise quits, but just far enough that it quits.
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Turn the squelch knob either clockwise or counterclockwise until the noise stops. Go no further than just where it stops. If that doesn't work there may be a defect. If there's no knob, look in program options for "squelch" and set it progressively higher until the noise quits, but just far enough that it quits.