Communication Systems For a low level AM system, the amplifiers modulated stage must be Harmonic devices Non-linear devices Class C amplifiers Linear devices Harmonic devices Non-linear devices Class C amplifiers Linear devices ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A telephone channel requires a bandwidth of about 3 kHz 50 kHz 1 kHz 10 kHz 3 kHz 50 kHz 1 kHz 10 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems SSB can be generated by Filter method Good attenuation characteristics All of these Phase cancellation method Filter method Good attenuation characteristics All of these Phase cancellation method 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 100.1 200 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 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The frequency range of 300 kHz to 3000 kHz is known as Medium frequency Very high frequency Low frequency High frequency Medium frequency Very high frequency Low frequency High frequency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In TV systems, equalising pulses are sent during Serrations Vertical blanking Horizontal retrace Horizontal blanking Serrations Vertical blanking Horizontal retrace Horizontal blanking ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS