An antenna having a noise temperature of 35 K is connected through a feeder having 0.5-dB loss to an LNA. The LNA has a

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answerhappygod
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An antenna having a noise temperature of 35 K is connected through a feeder having 0.5-dB loss to an LNA. The LNA has a

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An antenna having a noise temperature of 35 K is connected through a feeder having 0.5-dB loss to an LNA. The LNA has a noise temperature of 90 K. Calculate the system noise temperature referred to (a) the feeder input and (b) the LNA input.
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