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Question and Answer

Frequencies in the UHF range normally propagate by means of: ( )
A. Ground waves.
B. Sky waves. 
C. Surface waves. 
D. Space waves.

Answer

D
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Solution

As UHF frequency are of range  \((300 MHz\text{ to }1\mathit{GHz})\) at such high frequencies wave penetrate atmosphere for line of sight communications.
UHF range and above range of frequency are suitable for space wave communication.
Hence, the correct option is D.
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