1.

Determine the modulation index \[({{m}_{f}})\] and carrier swing (S) of an FM carrier having a frequency deviation of \[25\text{ }kHz\] and a modulating signal of\[5\text{ }kHz\].

A. \[{{m}_{f}}=3\] 
B.                                \[{{m}_{f}}=5\]
C. \[S=80\,kHz\]     
D.        \[S=60\,kHz\]
Answer» C. \[S=80\,kHz\]     


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