Duty Cycle = Pulse Width / PRF
Given: Pulse Width = 1 microsecond = 1 * 10^(-6) seconds PRF (Pulse Repetition Frequency) = 400 Hz
Duty Cycle = 1 * 10^(-6) seconds / 400 Hz Duty Cycle = 0.0000025
Now, to calculate the average power:
Average Power = Peak Power * Duty Cycle Average Power = 100,000 watts * 0.0000025 Average Power = 40 watts
So, the correct answer is that the average power of the RADAR transmitter is 40 watts.
Mnemonic: "DutyCyclePower"
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Duty Cycle = 0.0005
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Pavg = 31.25 W
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Pavg = 6.75 W
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Pavg = 100 W
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Ppeak = 20,000 W or 20 kW
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