Electronics and Communication Engineering - Communication Systems - Discussion
Discussion Forum : Communication Systems - Section 20 (Q.No. 19)
19.
A wave is frequency modulated with an index of 0.1 and its frequency is multiplied by 8 times, the modulation index is
Discussion:
3 comments Page 1 of 1.
Saurabh kumar said:
5 years ago
The effect of ntimes multiplier in fm.
modulation index(B) =n (B)
Fc=nFc
del f=n del f
fm =fm
in FM modulation index =del f/fm.
So new modulation index after multiplier =n (del f/fm).
So the right answer will be option D.
modulation index(B) =n (B)
Fc=nFc
del f=n del f
fm =fm
in FM modulation index =del f/fm.
So new modulation index after multiplier =n (del f/fm).
So the right answer will be option D.
Tamizlan said:
8 years ago
Modulating frequency is increased the Modulation index will be decrease.
So option B is correct.
So option B is correct.
Mukund said:
9 years ago
I think it is D.
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