Communication Systems It is found that a ship to ship communication suffers from fading. This can be avoided by using Frequency diversity Directional antenna Broad band antenna Space diversity Frequency diversity Directional antenna Broad band antenna Space diversity ANSWER DOWNLOAD EXAMIANS APP
Communication Systems DVD uses Laser beam for recording and video head for playback Laser beam for both recording and playback Video head for recording and laser beam for playback None of these Laser beam for recording and video head for playback Laser beam for both recording and playback Video head for recording and laser beam for playback None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a low level AM system, the amplifiers modulated stage must be Class C amplifiers Harmonic devices Non-linear devices Linear devices Class C amplifiers Harmonic devices Non-linear devices Linear devices ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A telephone channel requires a bandwidth of about 3 kHz 1 kHz 50 kHz 10 kHz 3 kHz 1 kHz 50 kHz 10 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands decreases Amplitude of distant sidebands increases Amplitude of distant sidebands remains constant Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands decreases Amplitude of distant sidebands increases Amplitude of distant sidebands remains constant ANSWER DOWNLOAD EXAMIANS APP
Communication Systems PAM stands for Phase Amplitude Modulation Phase Analogue Modulation Pulse Analogue Modulation Pulse Amplitude Modulation Phase Amplitude Modulation Phase Analogue Modulation Pulse Analogue Modulation Pulse Amplitude Modulation ANSWER DOWNLOAD EXAMIANS APP
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