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Posted on October 24, 2016

An FM signal, is modulated by the waveform shown in Fig. P5–48. Let fc = 420 MHz
(a) Determine the value of Df so that the peak-to-peak frequency deviation is 25 kHz.
(b) Evaluate and sketch the approximate PSD.
(c) Determine the bandwidth of this FM signal such that spectral components are down at least 40 dB from the unmodulated carrier level for frequencies outside that bandwidth.

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