Which mode of communication is employed to transmit very high frequency (VHF) and ultra high frequency (UHF) signals?

Ground wave propagation

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Skywave propagation

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Space wave propagation

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None of the above

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Solution

The correct option is C Space wave propagation
Space wave propagation mode is used for the transmission of VHF and UHF because UHF and VHF can neither be propagated through Ground waves (due to high absorption in the atmosphere) nor via Sky waves (due to non reflection of the ionosphere).

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Similar questions

Assertion: Communication in UHF/VHF regions can be established by space wave or tropospheric wave.

Reason: Communication in UHF/VHF regions is limited to line of sight distance.

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