Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 4 (Q.No. 9)
9.
A 400 W carrier is modulated to a depth of 75 percent. The total power in modulated wave will be
38.5 W
400 W
512.5 W
615.5 W
Answer: Option
Explanation:

Sideband frequencies will be fc ± fm.

Discussion:
1 comments Page 1 of 1.

R.D said:   8 years ago
m= 75%= 0.75.

P(t)=P(c)[1+((m^2)/2] = 400[1+((0.75)^2)/2)] = 512.5 W.

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