A transmitter transmit a power of 10 KW when modulation is 50%. What is the power of carrier wave?
(A) 12 KW
(B) 7.0 KW
(C) 8.89 KW
(D) 5.0 KW
The correct option is (C) 8.89 KW.
Explanation:
Total power = carrier power [1 + (m2 / 2)]
PT = PC [1 + (m2 / 2)]
Given: m = 0.5
PT = 10KW
∴ 10 = PC [1 + {(0.5)2 / 2)]
10 = PC [1 + (1/8)]
∴ PC = (80/9) = 8.89 KW
