Communication Systems If sampling is done at the rate of 10 kHz. The bandwidth required is 1280 kHz 35 kHz 10 kHz 70 kHz 1280 kHz 35 kHz 10 kHz 70 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 106 Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are 200 and 200 200 and 10.01 200 and 1.01 200 and 100.1 200 and 200 200 and 10.01 200 and 1.01 200 and 100.1 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To prevent overmodulation To reduce bandwidth To increase bandwidth To regulate oscillator I/P voltage To prevent overmodulation To reduce bandwidth To increase bandwidth To regulate oscillator I/P voltage ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Pulse Code Modulation system Quantising noise can be overcome by companding Suffers from the disadvantage of its incompatibly with TDM Large bandwidth is required Quantising noise can be reduced by decreasing the number of standard levels Quantising noise can be overcome by companding Suffers from the disadvantage of its incompatibly with TDM Large bandwidth is required Quantising noise can be reduced by decreasing the number of standard levels ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The direction of rotation of a CD is Mostly anticlockwise but some times clockwise Clockwise Clockwise or anticlockwise depending on frequency of data stored Anticlockwise Mostly anticlockwise but some times clockwise Clockwise Clockwise or anticlockwise depending on frequency of data stored Anticlockwise ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The frequency range of 300 kHz to 3000 kHz is known as Very high frequency Medium frequency Low frequency High frequency Very high frequency Medium frequency Low frequency High frequency ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS