Communication Systems Which of the following does not cause losses in optical fibre cables? Stepped index operation Microbending Attenuation in glass Impurities Stepped index operation Microbending Attenuation in glass Impurities ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? PWM Differential PCM PCM Delta modulation PWM Differential PCM PCM Delta modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Leak type bias is used in plate modulated class C amplifier to Prevent tuned circuit damping Prevent over modulation Increase the bandwidth Prevent excessive grid current Prevent tuned circuit damping Prevent over modulation Increase the bandwidth Prevent excessive grid current ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In Pulse Code Modulation system Quantising noise can be reduced by decreasing the number of standard levels Quantising noise can be overcome by companding Large bandwidth is required Suffers from the disadvantage of its incompatibly with TDM Quantising noise can be reduced by decreasing the number of standard levels Quantising noise can be overcome by companding Large bandwidth is required Suffers from the disadvantage of its incompatibly with TDM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? All PCM DM PSK All PCM DM PSK ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a given carrier wave, maximum undistorted power is transmitted when value of modulation is 1 0.8 0.5 1 0.8 0.5 ANSWER DOWNLOAD EXAMIANS APP
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