Communication Systems Which one of the following is analog? Delta modulation PCM PWM Differential PCM Delta modulation PCM PWM Differential PCM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems FM transmitting and receiving equipment as compared to AM equipment is Costly None of these Almost equally costly Cheaper Costly None of these Almost equally costly Cheaper ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Fourier analysis indicate that a square wave can be represented as A fundamental sine wave and odd harmonics Fundamental and subharmonic sine waves A fundamental sine wave and even harmonics A fundamental sine wave and harmonics A fundamental sine wave and odd harmonics Fundamental and subharmonic sine waves A fundamental sine wave and even harmonics A fundamental sine wave and harmonics ANSWER DOWNLOAD EXAMIANS APP
Communication Systems An audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 106 Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are 200 and 200 200 and 1.01 200 and 100.1 200 and 10.01 200 and 200 200 and 1.01 200 and 100.1 200 and 10.01 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? PCM All PSK DM PCM All PSK DM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The modulation index of an FM is changed from 0 to 1. How does the transmitted power change? Gets halved Remains unchanged Gets doubled Gets increased by 50 percent Gets halved Remains unchanged Gets doubled Gets increased by 50 percent ANSWER DOWNLOAD EXAMIANS APP
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