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The measure of the width of the main lobe is called as ________

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The measure of the width of the main lobe is called as ________

(a) Null to null bandwidth

(b) Half power bandwidth

(c) Normalized bandwidth

(d) Absolute bandwidth

This question was addressed to me during an interview.

I want to ask this question from Baseband Systems and Signal Transmission through Linear Systems in chapter Signals and Spectra of Digital Communications

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The correct answer is (a) Null to null bandwidth

Easy explanation: The main lobe consists of the maximum signal power. The measure of the width of the main lobe is called as null to null bandwidth.

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