Physics · Communication Systems
When the modulation index of an FM signal is narrow (much less than one), the transmission bandwidth of the FM signal can be approximated by which of the following?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Twice the highest frequency of the modulating signal✓
- 2Twice the sum of the carrier frequency and the modulating frequency
- 3The sum of the carrier frequency and the frequency deviation
- 4Twice the frequency deviation
Correct answer
Twice the highest frequency of the modulating signal
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