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electronics and communication engineering exam question papers
1. In amplitude modulation, carrier signals A cos ωt has its amplitude A modulated in proportion with message bearing (low frequency) signal m(t). The magnitude of m(t) is chosen to be __________ .
(A): less than 1
(B): less than or equal to 1
(C): more than 1
(D): none of these
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By: guest on 02 Jun 2017 12.54 am
For proper recovery of signal |m(t)| ≤ 1.
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