squelch


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Related to squelch: squelch circuit

squelch

Electronics a circuit that cuts off the audio-frequency amplifier of a radio receiver in the absence of an input signal, in order to suppress background noise

squelch

[skwelch]
(electronics)
To automatically quiet a receiver by reducing its gain in response to a specified characteristic of the input.

squelch

squelchclick for a larger image
A simple squelch circuit.
A circuit in a radio receiver that keeps the volume down when no signal is being received, but the volume builds up as soon as a signal is received. The function of a squelch is to adjust the sensitivity of the receiver by eliminating unwanted weak signals that cause background noise such as static, hash, or hiss. Most squelch controls are automatic, but there are a few manual squelch controls, too. Squelch circuits are used in communications equipment, which have long periods of silence between transmissions.
References in periodicals archive ?
The true purpose of the suit appears to be a willful attempt to frighten customers, damage Moneyline Telerate's business and squelch competition in the market.
IT was clear how afraid legislators are of losing their seats by their fierce bipartisan fight to squelch the open primary measure, Proposition 62.
Sure, you consciously decide to carry out or squelch any number of actions, from picking up a pencil to picking a pocket, but the final intention to act arises unconsciously.
Executives can greatly reduce the impact of corporate rumors by creating a two-way dialogue with visitors to their corporate websites and providing them with senior management contact information in an effort to squelch the false rumor or at least neutralize unfounded criticism," added Ms.
The Commission should not allow cynical accusations of improper meetings to squelch these types of legitimate discussions.
A group of hillside landowners has declared war on the Santa Monica Mountains Conservancy, which they claim is trying to squelch development by refusing to grant them access to their property through the new Michael D.
The chemical reactions in the brain--and related physiological changes--that squelch a seizure are poorly understood.
Discovery of the functions of proteins C and S by observing their activity in animal organs explains a curious but vital phenomenon: While blood in a test tube becomes a solid clot within a few minutes, injured people form only enough of a clot to squelch bleeding.
Janssen's play is a fable about a king who brings in otherworldly help to squelch his passionate daughters' plans.