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According to reciprocity theorem, _____ and _____ are identical.

(a) Transmitting power and receiving power

(b) Transmitting gain and receiving gain

(c) Effective area and physical area

(d) None of the mentioned

I got this question in a national level competition.

The doubt is from Link Budget Analysis topic in section Communication Link Analysis of Digital Communications

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Right choice is (b) Transmitting gain and receiving gain

The best I can explain: The reciprocity theorem states that for a given antenna and carrier wavelength the transmitting and receiving gain are identical.

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