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Q1: Power gain of antenna equals directive gain in VHF and UHF range if and only if efficiency of the antenna is __________ .

A 0.25

B 0.5

C 0.75

D 1

ANS:D - 1

Directive gain and power gain are identical except that power gain takes into account the antenna losses. It may be written as Gp = ηGd η => efficiency If η = 1 , GP = Gd .



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