Calculation of DSB SC power in AM signal
Calculate the power in a DSB SC signal when the modulation is 60% with a carrier power of 600W.
a.) 600W
b.) 540 W
c.) 108 W
d.) 300W
Correct Answer: c) 108 W
Explanation:
The total power in an AM is given by
Pt= Pc ( 1 + m2/2)
Given: m= 0.6
Therefore DSB power= (m2/2)Pc
= 600* (0.6)2/2
= 108 W
Discussion
- RE: Calculation of DSB SC power in AM signal -Pythagore (04/13/24)
- We used the carrier power to calculate the power in the sidebands
- RE: Calculation of DSB SC power in AM signal -Narden Bert (03/21/22)
- it is DSB-SC. So, why do we use carrier power in the calculations?
