Sarthaks Test
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Determine the frequency of modulating signal which is producing an FM signal having a bandwidth of 60kHz when the frequency deviation of FM signal is 10kHz,

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BW = 60kHz, Δf = 10kHz

BW = 2[Δf = fm]

60 x 103 = 2[10kHz + fm]

30 x 103 = 10 x 103 + fm

fm = (30 - 10) x 103

fm = 20 x 103 Hz

fm = 20kHz

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