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An AM transmitter is to deliver a total power of 100 W to an antenna. The percentage modulation is to be 100%. The power contained in each sideband is
- a)33.4 W
- b)66.6 W
- c)16.7 W
- d)8.9 W
Correct answer is option 'C'. Can you explain this answer?
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An AM transmitter is to deliver a total power of 100 W to an antenna. ...
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An AM transmitter is to deliver a total power of 100 W to an antenna. ...
Calculation of Total Power
To calculate the total power of an AM transmitter, we can use the following formula:
P = (1+m)²*Pc/2
where P is the total power, m is the percentage modulation, and Pc is the carrier power.
In this case, P = 100 W and m = 100%, so m = 1. Plugging these values into the formula, we get:
100 = (1+1)²*Pc/2
Simplifying, we get:
Pc = 50 W
Calculation of Power in Each Sideband
To calculate the power in each sideband, we can use the following formula:
Ps = (m/100)²*Pc/2
where Ps is the power in each sideband.
In this case, m = 100% and Pc = 50 W. Plugging these values into the formula, we get:
Ps = (1)²*50/2 = 25 W
Since there are two sidebands, the total power in both sidebands is:
2*Ps = 2*25 = 50 W
Therefore, the power contained in each sideband is 16.7 W (50 W/3).
To calculate the total power of an AM transmitter, we can use the following formula:
P = (1+m)²*Pc/2
where P is the total power, m is the percentage modulation, and Pc is the carrier power.
In this case, P = 100 W and m = 100%, so m = 1. Plugging these values into the formula, we get:
100 = (1+1)²*Pc/2
Simplifying, we get:
Pc = 50 W
Calculation of Power in Each Sideband
To calculate the power in each sideband, we can use the following formula:
Ps = (m/100)²*Pc/2
where Ps is the power in each sideband.
In this case, m = 100% and Pc = 50 W. Plugging these values into the formula, we get:
Ps = (1)²*50/2 = 25 W
Since there are two sidebands, the total power in both sidebands is:
2*Ps = 2*25 = 50 W
Therefore, the power contained in each sideband is 16.7 W (50 W/3).
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An AM transmitter is to deliver a total power of 100 W to an antenna. The percentage modulation is to be 100%. The power contained in each sideband isa)33.4 Wb)66.6 Wc)16.7 Wd)8.9 WCorrect answer is option 'C'. Can you explain this answer?
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