PLEASE LECTURE NAME SIGNALS AND INFORMATIONS i) A communications channel with a bandwidth of 4 MHz has a signal-to-noise ratioof 20 dB. Determine the channel capacity, in bits per second, of this noisy channel.ii) The bandwidth of the noisy channel in i) is reduced by 75%. Assuming the originalsignal power S is 10 W, how much should the signal power be increased to maintainthe same channel capacity?

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Answered: i) A communications of 20 dB. Determine…

i) A communications of 20 dB. Determine channel with a bandwidth of 4 MHz has a signal-to-noise ratio the channel capacity, in bits per second, of this noisy channel.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

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Concept explainers

BJT (Bipolar Junction Transistor)

A BJT is a semiconductor device with 3 terminals that consist of a p-n junction diode that can amplify the signal or current. It is a current-controlled device. The three BJT terminals are base, collector, and emitter. The BJT works with the charge carrier, the two type of carriers in the BJT are holes and electrons, the charge carriers flow by the process of recombination. The signal to be amplifier is generally given as the input at the base terminal and an amplified form of it is available at the collector terminal.

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PLEASE

LECTURE NAME SIGNALS AND INFORMATIONS

i) A communications channel with a bandwidth of 4 MHz has a signal-to-noise ratio
of 20 dB. Determine the channel capacity, in bits per second, of this noisy channel.
ii) The bandwidth of the noisy channel in i) is reduced by 75%. Assuming the original
signal power S is 10 W, how much should the signal power be increased to maintain
the same channel capacity?

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