Which among the following is true about frequency modulation deviation?
Frequency modulation deviation shows the deviation of carrier frequency from its unmodulated value after frequency modulation
It is proportional to the instantaneous amplitude of the modulating signal
It is proportional to the frequency of carrier wave
All of the above
As we have learned
Frequency modulation deviation -
The amount by which carrier frequency is varied from its unmodulated value.
- wherein
The deviation is made proportional to the instantaneous value of the modulating voltage.
Frequency Modulation devaition
Where carrier frequency
f = frequency of the modulated wave
Further
And
Since
Hence all of the above are true
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