Computer · Communication Systems
An FM modulator operates at a carrier frequency of 250 kHz with a frequency deviation sensitivity of 1.5 kHz/V. A PM modulator operates at a carrier frequency of 500 kHz with a phase deviation sensitivity of 1.5 rad/V. If both FM and PM modulators are modulated by the same modulating signal having a peak amplitude of 5 V and a modulating frequency of 5 kHz, what is the relationship between the frequency modulation index (βFM) and phase modulation index (βPM)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1βPM = 5 βFM✓
- 2βPM = βFM
- 3βPM = 2 βFM
- 4βFM = 5 βPM
Correct answer
βPM = 5 βFM
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