The earth station receiver, shown in Figure Q3. c. is part of a 14/12GHz satelli

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The earth station receiver, shown in Figure Q3. c. is part of a 14/12GHz satellite link. The input signal at the feeder (L) is Ps2 = - 120dBW. and the external noise Pne = 0. 01pW. The antenna is connected to the low noise amplifier (LNa) via the feeder. The receiver (R) is cascaded with the LNa through the main amplifier (Ma). The remaining parameters of each part are shown on the block diagram. assuming that the speed of light is c=3 Times l08 m/sec, the reference temperature is 290K, and the Boltzmann's constant is k=1. 38 Times 10-23 J/K. calculate the following: The total system noise power Pn2 in watts The input signal [Ps1] The system figure of merit [G/T] The [SNRi] at the receiver input. The [SNRo] at the receiver output.

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