Question 22 of 30
The height of a VHF radio antenna is more important than the power output wattage of the radio because:
A
Skywave atmospheric returns are highly unstable at sea
B
VHF communications are basically line of sight
C
Higher placement reduces tracking ground interference loops
D
Internal wire resistances limit low-level signal paths
Advertisement
Answer & Explanation
The correct answer is Option B: VHF communications are basically line of sight.
VHF radio waves travel in straight lines and are limited by the curvature of the Earth; thus, they are fundamentally line-of-sight communications. Antenna height is crucial for extending this line of sight and improving the range of communication.