d) A radio antenna pointed in a direction of the sky has a noise temperature of Ts = 50 K. The antenna feeds the received signal to a pre-amplifier operating at an ambient temperature of To 290 K. The pre-amplifier has a gain of 35 dB over a bandwidth of 10 MHz and a noise figure of 2 dB. - (i) Determine the noise power at the output of the preamplifier in dBm. (ii) Determine the signal power Pr (in dBm) at the antenna terminals such that the signal-to-noise ratio is 50 dB at the output of the pre-amplifier. You may take the Boltzmann constant as k 1.38 × 10-23 JK-¹.

d) A radio antenna pointed in a direction of the sky has a noise temperature of Ts = 50 K. The antenna feeds the received signal to a pre-amplifier operating at an ambient temperature of To 290 K. The pre-amplifier has a gain of 35 dB over a bandwidth of 10 MHz and a noise figure of 2 dB. - (i) Determine the noise power at the output of the preamplifier in dBm. (ii) Determine the signal power Pr (in dBm) at the antenna terminals such that the signal-to-noise ratio is 50 dB at the output of the pre-amplifier. You may take the Boltzmann constant as k 1.38 × 10-23 JK-¹.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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