Communication Systems A buffer amplifier is A high gain D.C. amplifier None of these A cathode follower stage A double-tuned amplifier A high gain D.C. amplifier None of these A cathode follower stage A double-tuned amplifier ANSWER DOWNLOAD EXAMIANS APP
Communication Systems SSB can be generated by Good attenuation characteristics All of these Filter method Phase cancellation method Good attenuation characteristics All of these Filter method Phase cancellation method ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? Differential PCM PWM Delta modulation PCM Differential PCM PWM Delta modulation PCM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Skip distance depends on time of day and angle of incidence. True False True False ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following does not cause losses in optical fibre cables? Attenuation in glass Microbending Stepped index operation Impurities Attenuation in glass Microbending Stepped index operation Impurities ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Commercial Frequency deviation of FM is 65 kHz 80 kHz 70 kHz 75 kHz 65 kHz 80 kHz 70 kHz 75 kHz ANSWER DOWNLOAD EXAMIANS APP