A carrier wave is frequency modulated using a sinusoidal signal of frequency m and amplitude A m (a) Determine the values of the modulation index for which the carrier component of the FM signal is reduced to zero For this calculation you may use the values of J 0 () given in Table (b) In a certain experiment conducted with m 1 kHz and increasing Am (starting from 0 volts), it is found that the carrier component of the FM signal is reduced to zero for the first time when A m 2 volts What is the frequency sensitivity of the modulator What is the value of Am for which the carrier components is reduced to zero for the second time

Question: A carrier wave is frequency-modulated using a sinusoidal signal of frequency m and amplitude A m . (a) Determine the values of the modulation

A carrier wave is frequency-modulated using a sinusoidal signal of frequency ƒ_m and amplitude A_m.

(a) Determine the values of the modulation index β for which the carrier component of the FM signal is reduced to zero. For this calculation you may use the values of J₀ (β) given in Table.

(b) In a certain experiment conducted with ƒ_m = 1 kHz and increasing Am (starting from 0 volts), it is found that the carrier component of the FM signal is reduced to zero for the first time when A_m =2 volts. What is the frequency sensitivity of the modulator? What is the value of Am for which the carrier components is reduced to zero for the second time?

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a From Table A4 1 we find by interpolation that JoB is zero for B 244 B 552 B 865 B 11... View full answer

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