quadrature amplitude modulation
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Definitions of quadrature amplitude modulation words
- noun Technical meaning of quadrature amplitude modulation (QAM) A method for encoding digital data in an analog signal in which each combination of phase and amplitude represents one of sixteen four bit patterns. This is required for fax transmission at 9600 bits per second. 1
- noun quadrature amplitude modulation (radio) A modulation scheme that conveys data by applying amplitude modulation to two carrier waves at once. These two waves, usually sinusoids, are out of phase with each other by 90° and are thus called quadrature carriers. Commonly abbreviated QAM. 0
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Parts of speech for Quadrature amplitude modulation
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