Correct Answer : Option (A) : after detector
Explanation : Squelch, i.e., muting is added after detector to suppress noise when no carrier is present at input.
Correct Answer : left to right
Correct Answer : Fading
Explanation : Tropospheric scatter propagation is subject to two types of fading called Rayleigh fading (due to multipath propagation) and fading due to variations in atmospheric conditions along the propagation path.
Correct Answer : 13 mm