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B4. A conventional AM signal with modulation index, u, less than one cannot be demodulated by a coherent AM receiver. B5. A FM wave with a modulation index, B, equal 0.1 has a bandwidth approximately equal to the AM wave resulting from modulating the same message signal.

B4. A conventional AM signal with modulation index, u, less than one cannot be demodulated by a coherent AM receiver. B5. A FM wave with a modulation index, B, equal 0.1 has a bandwidth approximately equal to the AM wave resulting from modulating the same message signal.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Please help with parts B4 and B5 of this practice question. Thank you
True or False: B1. For the same channel bandwidth, higher order modulation waveforms are more bandwidth efficient than lower order modulation waveforms (here the order refers to the size of the waveform alphabet, M) B2. A FM wave with higher modulation index, ß, has smaller bandwidth than one with a lower modulation index. B3. A conventional AM signal with modulation index, u, greater than one cannot be demodulated by a coherent AM receiver. B4. A conventional AM signal with modulation index, u, less than one cannot be demodulated by a coherent AM receiver. B5. A FM wave with a modulation index, B, equal 0.1 has a bandwidth approximately equal to the AM wave resulting from modulating the same message signal.
Transcribed Image Text:True or False: B1. For the same channel bandwidth, higher order modulation waveforms are more bandwidth efficient than lower order modulation waveforms (here the order refers to the size of the waveform alphabet, M) B2. A FM wave with higher modulation index, ß, has smaller bandwidth than one with a lower modulation index. B3. A conventional AM signal with modulation index, u, greater than one cannot be demodulated by a coherent AM receiver. B4. A conventional AM signal with modulation index, u, less than one cannot be demodulated by a coherent AM receiver. B5. A FM wave with a modulation index, B, equal 0.1 has a bandwidth approximately equal to the AM wave resulting from modulating the same message signal.
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