A carrier is modulated by a digital bit stream having one of the possible phases of 0°, 90°, 180°, and 270°. Then the modulation is termed as

A carrier is modulated by a digital bit stream having one of the possi

1.	A carrier is modulated by a digital bit stream having one of the possible phases of 0°, 90°, 180°, and 270°. Then the modulation is termed as
A.	BPSK
B.	QPSK
C.	QAM
D.	MSK
Answer» C. QAM

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A carrier is modulated by a digital bit stream having one of the possible phases of 0°, 90°, 180°, and 270°. Then the modulation is termed as

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