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Which of the following statement is true, if a return echo arrives after the allocated pulse interval?

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Which of the following statement is true, if a return echo arrives after the allocated pulse interval?

(a) it will interfere with the operation of a transmitter

(b) the receiver might be overloaded

(c) overlap of signals

(d) target will appear closer than it really is

This question was addressed to me in a national level competition.

My query is from Noise for SSB-SC topic in section Noise of Analog Communications

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Right answer is (d) target will appear closer than it really is

Easiest explanation: If a return echo arrives after the allocated pulse interval then the target will always appear closer than it really is.

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