In the ________ scheme,a binary 0 is represented by no line signal and a binary 1 is represented by a positive or negative pulse.The binary 1 pulses must alternate in polarity.
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Q16: More efficient use of bandwidth can be
Q17: A digital signal is a sequence of
Q18: Both analog and digital information can be
Q19: Amplitude shift keying is less susceptible to
Q20: In general,the equipment for encoding digital data
Q22: There is a transition at the middle
Q23: The device used for converting analog data
Q24: Frequency modulation and phase modulation are special
Q25: A distinction needs to be made between
Q26: A common encoding technique in which each
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