Definition

carrierless amplitude/phase (CAP)

Part of the Electronics glossary:

Carrierless amplitude/phase (CAP) modulation was the original approach for modulation of a Digital Subscriber Line (DSL) signal. Discrete multitone (DMT) is now the preferred modulation alternative over CAP.

CAP is closely related to quadrature amplitude modulation (QAM).

This was last updated in October 2008
Posted by: Margaret Rouse

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