1.

Consider the frequency modulated signal 10 cos (2 x 10 + 5 sin (2 x 1500) + 7.5 sin (2 x 1000) with carrier frequency of 10Hz. The modulation index is

Answer» Total frequency deviation = 5 x 1500 + 7.5 x 1000 = 15000 Thus modulation index = .


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