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Compare ground wave and space wave propagation on the basis of: (i) Frequency range (ii) Method of propagation.

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Compare ground wave and space wave propagation on the basis of: (i) Frequency range (ii) Method of propagation.

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Description : Compare ground wave propagation. Sky wave propagation and space wave propagation.

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Answer : The polarization required in ground wave propagation is vertical (linear).

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Answer : Compare TRF and super heterodyne receivers. 

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Answer : Distinguish between resonant and non-resonant antennas.

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Description : Compare between simplex and duplex communication 

Answer : simplex and duplex communication :

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