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NRZ-S is complement of _______

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NRZ-S is complement of _______

(a) NRZ-L

(b) NRZ-M

(c) NRZ-L & NRZ-M

(d) None of the mentioned

This question was posed to me by my school principal while I was bunking the class.

This interesting question is from Baseband Transmission in division Formatting and Baseband Modulation of Digital Communications

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The correct choice is (b) NRZ-M

To explain: NRZ-S is a complement of NRZ-M. Logic 0 is represented by a change in voltage level and logic 1 is represented as no change in voltage level.

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