Q. (a) An ampli?er with F₀ = 3 or 4.77 dB, f₀ = 4 GHz, and BN = 14 MHz is used with an antenna forwhich T_a =200K. The connecting path loss is 1.45, or 1.61 dB at a physical temperature of 250 K. Find the available system noise power. compute the signal-to-noise ratio.

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