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 Fourier analysis indicate that a square wave can be represented as A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics A fundamental sine wave and harmonics Fundamental and subharmonic sine waves A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics A fundamental sine wave and harmonics Fundamental and subharmonic sine waves ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A buffer amplifier is A double-tuned amplifier 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 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a low level AM system, the amplifiers modulated stage must be Class C amplifiers Linear devices Non-linear devices Harmonic devices Class C amplifiers Linear devices Non-linear devices Harmonic devices ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A woofer should be fed from the input through a Band pass filter Low pass filter Band stop filter High pass filter Band pass filter Low pass filter Band stop filter High pass filter ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a given carrier wave, maximum undistorted power is transmitted when value of modulation is 0.5 0.8 1 0.5 0.8 1 ANSWER DOWNLOAD EXAMIANS APP
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