Communication Systems In TV systems, equalising pulses are sent during Serrations Horizontal blanking Vertical blanking Horizontal retrace Serrations Horizontal blanking Vertical blanking Horizontal retrace ANSWER DOWNLOAD EXAMIANS APP
Communication Systems One of the advantages of base modulation over collector modulation of a transistor class C amplifier is The lower modulating power requirement Better linearity High power output per transistor Improved efficiency The lower modulating power requirement Better linearity High power output per transistor Improved efficiency ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is used to generate PDM? Free running multi-vibrator Monostable multi-vibrator Schmitt trigger JK flip-flop Free running multi-vibrator Monostable multi-vibrator Schmitt trigger JK flip-flop 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 SSB can be generated by Filter method All of these Phase cancellation method Good attenuation characteristics Filter method All of these Phase cancellation method Good attenuation characteristics ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a low level AM system, the amplifiers modulated stage must be Linear devices Non-linear devices Harmonic devices Class C amplifiers Linear devices Non-linear devices Harmonic devices Class C amplifiers ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS