In binary data transmission DPSK is preferred to PSK because – McqOptions

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1.	In binary data transmission DPSK is preferred to PSK because
A.	a coherent carrier is not required to the generated at the receiver
B.	for a given energy per bit, the probability for zero is less
C.	the 180 phase shifts of the carrier
D.	more protection is provided against impulse noise
Answer» B. for a given energy per bit, the probability for zero is less

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