(a) Derive the mathematical expression for the single tone FM modulated signal and hence differentiate the NBFM and WBFM.
Explanation
The difference between NBFM and WBFM lies in the frequency deviation. In NBFM, the frequency deviation is small, whereas in WBFM, the frequency deviation is large. This affects the bandwidth of the signal, with WBFM having a larger bandwidth than NBFM.
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