Which of the following cause multi path signals?(a) Low transmission power(b) Ground reflection(c) Low frequency transmission(d) High frequency transmissionThis question was posed to me in homework.My question is based upon Instrument Landing Systems topic in portion Landing Systems & Air-Traffic Management of Avionics

Which of the following cause multi path signals?(a) Low transmission p

1.	Which of the following cause multi path signals?(a) Low transmission power(b) Ground reflection(c) Low frequency transmission(d) High frequency transmissionThis question was posed to me in homework.My question is based upon Instrument Landing Systems topic in portion Landing Systems & Air-Traffic Management of Avionics
Answer» The correct option is (B) GROUND reflection The EXPLANATION is: Mulit path Signals are created when a part of the original signal TAKE a different path than LOS to reach the receiver. Thus a signal with same INFORMATION reaches the receiver at multiple times. Multi path signals are created when the actual signal gets reflected from the ground and reaches the receiver.

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