Communication Systems For a given carrier wave, maximum undistorted power is transmitted when value of modulation is 1 0.8 0.5 1 0.8 0.5 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems FM transmitting and receiving equipment as compared to AM equipment is Costly Cheaper None of these Almost equally costly Costly Cheaper None of these Almost equally costly ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Fourier analysis indicate that a square wave can be represented as Fundamental and subharmonic sine waves A fundamental sine wave and harmonics A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics Fundamental and subharmonic sine waves A fundamental sine wave and harmonics A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics 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 remains constant Amplitude of distant sidebands decreases Amplitude of distant sidebands increases Amplitude of distant sidebands first increases, then decreases Amplitude of distant sidebands remains constant Amplitude of distant sidebands decreases Amplitude of distant sidebands increases Amplitude of distant sidebands first increases, then decreases ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is 16 1 15 8 16 1 15 8 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The disadvantage of FM over AM is that Large bandwidth is required High output power is needed High modulating power is needed Noise is very high for high frequency Large bandwidth is required High output power is needed High modulating power is needed Noise is very high for high frequency ANSWER DOWNLOAD EXAMIANS APP
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