Correct Answer : Option (A) : used in UHF range
Explanation : Discone antenna is a combination of disc and cone. It is omnidirectional and is used in VHF and UHF range especially at airports.
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