Question
Download Solution PDFThe power transmitted by an by an SSB transmitter is 20 kW. It is required to be replaced by standard AM transmission having modulation index of 0.4 and same power. What is the transmission efficiency?
This question was previously asked in
UPSC ESE (Prelims) Electronics and Telecommunication Engineering 19 Feb 2023 Official Paper
Answer (Detailed Solution Below)
Option 3 : 7.4%
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ST 1: UPSC ESE (IES) Civil - Building Materials
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Detailed Solution
Download Solution PDFGiven:
PSB = 20 kW
Modulation Index (\(\mu\)) =0.4
Transmission Efficiency = \(\frac{\mu^2}{2+\mu^2}\) = \(\frac{0.4^2}{2+0.4^2} = 7.4%\)%
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