Q) Which of the following describes the muting of receiver audio controlled solely by the presence or absence of an RF signal?
A) Carrier squelch
NJ2X Notes:
A carrier squelch opens the radio's audio based on the presence of sufficiently strong signal. A radio equipped with carrier squelch automatically mutes the radio's audio when there is an absence of a signal with sufficient strength. Most amateur radios are equipped with an adjustable carrier squelch.
