FRAC; Fracastoro; Fraccaro; Fraccaro, M. FRACDS; FRACGP; fracidin; FRACO; FRACOG; FRACP; FRACR; FRACS; fract-fract dos; Fractal; fractals; fraction; fraction collector; fraction of inspired oxygen; fractional; fractional dilation and curettage; fractional distillation; fractional excretion of sodium; fractional flow reserve; fractional injection; fractional oxyhemoglobin
In telecommunications, squelch is a circuit function that acts to suppress the audio (or video) output of a receiver in the absence of a sufficiently strong desired input signal. carrier squelch is unlocked and will let any signal in. Selective calling locks out all signals except ones with the correct code. In non-critical uses, selective calling can also be used to hide the presence of interfering signals such as receiver-produced intermodulation.
The receiver will squelch when it cannot locate the tone key. A tone key squelch can be fooled by rogue harmonics that approximate the tone keyâs frequency or by other nearby microphone transmitters (used by someone other than you) that are also using tone keys.he receiver will squelch when it cannot locate the tone key. A tone key squelch can be fooled by rogue harmonics that approximate the tone keyâs frequency or by other nearby microphone transmitters (used by someone other than you) that are also using tone keys.