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Please take time to view our Glossary of Terms and Abbreviations - we hope you will find the information useful.

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Quadrature Amplitude Modulation - a modulation technique used to transmit digital signals


Quadrature Phase Shift Keying - QPSK is a phase modulation algorithm. The carrier wave is modulated to encode bits of digital information in each phase change. QPSK refers to PSK with 4 states.