Communication Systems As per Shannon-Hartley theorem, a noise less Gaussian channel has None of these Small capacity Zero capacity Infinite capacity None of these Small capacity Zero capacity Infinite capacity ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To prevent overmodulation To regulate oscillator I/P voltage To increase bandwidth To reduce bandwidth To prevent overmodulation To regulate oscillator I/P voltage To increase bandwidth To reduce bandwidth ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If in a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range 100-5000 kHz, the width of channel is __________ kHz. 10 5 995 4.9 10 5 995 4.9 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The main function of a balanced modulator is to Produce balanced modulation of a carrier wave Produce 100% modulation Suppress carrier signal in order to create a single-sideband or double sideband Limit noise picked by a receiver Produce balanced modulation of a carrier wave Produce 100% modulation Suppress carrier signal in order to create a single-sideband or double sideband Limit noise picked by a receiver ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following does not cause losses in optical fibre cables? Stepped index operation Attenuation in glass Microbending Impurities Stepped index operation Attenuation in glass Microbending Impurities ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is 15 16 8 1 15 16 8 1 ANSWER DOWNLOAD EXAMIANS APP
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