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Small scale fading describes the _________ fluctuations of the amplitude, phases of a signal.

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Small scale fading describes the _________ fluctuations of the amplitude, phases of a signal.

(a) Rapid

(b) Slow

(c) Instantaneous

(d) Different

This question was posed to me in unit test.

I need to ask this question from Small- Scale Multipath Propagation in portion Mobile Radio Propagation: Small – Scale Fading and Multipath of Wireless/Mobile

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Best answer
The correct choice is (a) Rapid

Explanation: Small scale fading or simply fading, is used to describe the rapid fluctuations of amplitudes, phases, or multipath delays of a radio signal over a short period of time or travel distance. It ignores the large scale path loss.

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