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What is the modulation index?

What is the modulation index? Find the answer to this question and access a vast question bank that is customised for learners.

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Answer: Modulation index is also known as modulation depth. The modulation index tells us how much the carrier signal of a modulated variable differs from the unmodulated level. There are three modulation schemes:-

  1. Amplitude modulation index
  2. Phase modulation index
  3. Frequency modulation index
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