Communication Systems VSB modulation is preferred in TV because None of these It results in better reception It avoids phase distortion at low frequencies It reduces the bandwidth requirement to half None of these It results in better reception It avoids phase distortion at low frequencies It reduces the bandwidth requirement to half ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For telegraphy the most commonly used modulation system is Two tone modulation FSK PCM Single tone modulation Two tone modulation FSK PCM Single tone modulation ANSWER DOWNLOAD EXAMIANS APP
Communication Systems FM transmitting and receiving equipment as compared to AM equipment is Cheaper Costly None of these Almost equally costly Cheaper Costly None of these Almost equally costly ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A woofer should be fed from the input through a High pass filter Band pass filter Band stop filter Low pass filter High pass filter Band pass filter Band stop filter Low pass filter ANSWER DOWNLOAD EXAMIANS APP
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 In TV systems, equalising pulses are sent during Serrations Horizontal blanking Horizontal retrace Vertical blanking Serrations Horizontal blanking Horizontal retrace Vertical blanking ANSWER DOWNLOAD EXAMIANS APP
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