Communication Systems Leak type bias is used in plate modulated class C amplifier to Prevent over modulation Prevent excessive grid current Prevent tuned circuit damping Increase the bandwidth Prevent over modulation Prevent excessive grid current Prevent tuned circuit damping Increase the bandwidth ANSWER DOWNLOAD EXAMIANS APP
Communication Systems SSB can be generated by Filter method Phase cancellation method All of these Good attenuation characteristics Filter method Phase cancellation method All of these Good attenuation characteristics ANSWER DOWNLOAD EXAMIANS APP
Communication Systems VSB modulation is preferred in TV because It avoids phase distortion at low frequencies It results in better reception None of these It reduces the bandwidth requirement to half It avoids phase distortion at low frequencies It results in better reception None of these It reduces the bandwidth requirement to half ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If in a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range 100-5000 kHz, the width of channel is __________ kHz. 4.9 5 10 995 4.9 5 10 995 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Full duplex operation permits transmission in both directions at the same time. False True False True ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A modem is classified as low speed if data rate handled is Upto 600 bps Upto 250 bps Upto 400 bps Upto 100 bps Upto 600 bps Upto 250 bps Upto 400 bps Upto 100 bps ANSWER DOWNLOAD EXAMIANS APP
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