What does QAM stand for, and what does it combine?

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Multiple Choice

What does QAM stand for, and what does it combine?

Explanation:
QAM stands for Quadrature Amplitude Modulation. It combines amplitude and phase by using two orthogonal components of the carrier, called the in-phase (I) and quadrature (Q) components. Data is encoded by selecting different levels for I and Q, which changes the overall amplitude and the phase of the signal. The two components are 90 degrees apart, allowing simultaneous modulation of both amplitude and phase and packing more bits into each symbol. The other pairings don’t match how QAM operates—amplitude and frequency would describe AM-FM, while phase and time aren’t how QAM encodes data.

QAM stands for Quadrature Amplitude Modulation. It combines amplitude and phase by using two orthogonal components of the carrier, called the in-phase (I) and quadrature (Q) components. Data is encoded by selecting different levels for I and Q, which changes the overall amplitude and the phase of the signal. The two components are 90 degrees apart, allowing simultaneous modulation of both amplitude and phase and packing more bits into each symbol. The other pairings don’t match how QAM operates—amplitude and frequency would describe AM-FM, while phase and time aren’t how QAM encodes data.

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