Communication Systems

Q1: A broadcast radio transmitter radiates 5 kW when the modulation percentage is 60. How much of this is carrier power?

A 6.66 kW

B 5 kW

C 4.9 kW

D 4.23 kW

ANS:D - 4.23 kW

Ptotal = 5kW, Pc=?, m=0.6.
Ptotal = Pc((1+(m^2/2)),
5kW = Pc((1+(0.6^2/2)),
Pc = 4.23kW.



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