A source with equivalent temperature (T_{0}=290) Kelvin is followed by three amplifiers with specifications shown in the

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A source with equivalent temperature \(T_{0}=290\) Kelvin is followed by three amplifiers with specifications shown in the table below.
image text in transcribed(a) Compute the noise figure for the three cascaded amplifiers. 

(b) Compute the effective temperature for the three cascaded amplifiers. 

(c) Compute the overall system noise figure.

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