"104293258"^^ . . . "an electric circuit that cuts off a receiver when the signal becomes weaker than the noise"@en-us . . "104128356"@en-us . . "squelcher"@en-us . . . "0"^^ . "squelch circuit"@en-us . . . . "0"^^ . . . "squelch"@en-us . . "04293258-n"^^ . "squelch circuit"^^ . .