SQUELCH CIRCUIT Meaning and
Definition
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A squelch circuit, commonly referred to as a noise gate in audio engineering, is an electronic circuit or device that functions to eliminate or suppress unwanted noise or interference in a signal. It is primarily used in communication systems, audio amplifiers, and radio receivers to cut off or attenuate weak or undesired signals, resulting in cleaner and more intelligible audio output.
The squelch circuit operates by monitoring the strength or amplitude of the incoming signal, and when the signal falls below a predetermined threshold, it mutes or suppresses the output. By doing so, it helps to eliminate background noise, static, or weak signals that may disrupt or degrade the desired audio or information.
In communication systems, such as two-way radios, the squelch circuit is used to automatically suppress or mute receiver audio output when the incoming signal becomes too weak, resulting in no audible sound until a strong signal is detected. This ensures that only clear and strong signals are transmitted, enhancing the clarity and quality of the communication.
Moreover, in audio equipment, the squelch circuit is utilized to suppress unwanted noise or interference when there is no desired audio input. This prevents hissing, buzzing, or background noise from being amplified and transmitted, thereby improving the overall audio experience.
In summary, a squelch circuit is an electronic circuit that actively suppresses weak or unwanted signals by muting or attenuating the output, resulting in a cleaner and more discernible audio or communication signal.
Common Misspellings for SQUELCH CIRCUIT
- aquelch circuit
- zquelch circuit
- xquelch circuit
- dquelch circuit
- equelch circuit
- wquelch circuit
- s1uelch circuit
- s2uelch circuit
- swuelch circuit
- sauelch circuit
- sqyelch circuit
- sqhelch circuit
- sqjelch circuit
- sqielch circuit
- sq8elch circuit
- sq7elch circuit
- squwlch circuit
- squslch circuit
- squdlch circuit
Etymology of SQUELCH CIRCUIT
The word "squelch" in the context of a circuit originated in the field of radio communication. It is derived from the sound made when the circuit suppresses or mutes unwanted noise.
The term "squelch" itself likely comes from the Middle English word "skwilchen", which means to make a bubbling or gurgling noise. This word ultimately finds its roots in the Old Norse word "skvala", meaning to make a sound or splash.
In the field of radio communication, a squelch circuit is used to suppress background noise when no desired signal is present. It is typically employed in two-way radios and communication systems to ensure that only relevant transmissions come through.
Over time, the term "squelch" has been adopted into electronics and engineering jargon to describe a circuit that performs a similar function of muting or suppressing unwanted signals or noise.
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