Official PYQ · 2021Set 1 · Q22Analog CommunicationsNAT1 mark

GATE EC 2021 Set 1 Q22 — Analog Communications

Consider a carrier signal which is amplitude modulated by a single-tone sinusoidal message signal with a modulation index of $50\%$ . If the carrier and one of the sidebands are suppressed in the modulated signal, the percentage of power saved (rounded off to one decimal place) is ______________

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Answer: 94.2:94.6

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Published 10 Oct 2026

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