Electronics and Communication Engineering - Communication Systems - Discussion
Discussion Forum : Communication Systems - Section 11 (Q.No. 14)
14.
For a FM wave carrier modulating frequency is 10 kHz and bandwidth is 2 MHz. If the modulating signal amplitude is doubled, the bandwidth will be
Discussion:
6 comments Page 1 of 1.
Rajashekar said:
6 years ago
D is correct because of frequency deviation= Kf * Vm.
So when Vm double then frequency deviation double so bandwidth is doubled.
Where Kf is a deviation sensitivity.
So when Vm double then frequency deviation double so bandwidth is doubled.
Where Kf is a deviation sensitivity.
Dinu said:
7 years ago
The answer is 2 khz.
Only amplitude is doubled not freq.
Only amplitude is doubled not freq.
Jai Prakash Mishra said:
7 years ago
B.W = 2(Δf + fm),
If Δf = 0.
B.W = 2fm.
If Δf = 0.
B.W = 2fm.
Md numan said:
8 years ago
B.W IS directly proportion to the Fm.
So fm is doubled b.w becomes double.
So fm is doubled b.w becomes double.
Jombie said:
9 years ago
It seems 3.98 Mhz.
Please explain it.
Please explain it.
Jombi said:
9 years ago
Please explain it.
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