[Solved] In QAM, the amplitude is and phase is

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Q.	In QAM, the amplitude is and phase is
A.	varied, constant
B.	varied, varied
C.	constant, varied
D.	constant, constant
Answer» B. varied, varied
Explanation: quadrature amplitude modulation (qam) is obtained by allowing the amplitude to also vary with the phase. thus, the constellation consists of square lattice of signal points.

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