Flash Cards

E8C01

What is Quadrature Amplitude Modulation or QAM?

• A. Transmission of data by modulating the amplitude of two carriers of the same frequency but 90 degrees out of phase
• B. A technique for digital data compression used in digital television which removes redundancy in the data by comparing bit amplitudes
• C. A technique for analog modulation of television video signals using phase modulation and compression
• D. A method of performing single sideband modulation by shifting the phase of the carrier and modulation components of the signal