quadrature amplitude modulation

noun

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.

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Meanings

nounquadrature amplitude modulation (countable and uncountable, plural quadrature amplitude modulations)

plural quadrature amplitude modulations

  1. countableuncountablebroadcastingA 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.

Translations

Catalan modulació d'amplitud en quadratura
  • modulació d'amplitud en quadraturamethod of sending information
Chinese Mandarin 正交幅度调制
  • 正交幅度调制 (zhèngjiāo fúdù tiáozhì)method of sending information
Dutch kwadratuur-amplitudemodulatie
  • kwadratuur-amplitudemodulatiemethod of sending information
Finnish QAM-modulointi, kvadratuuriamplitudimodulaatio
  • QAM-modulointimethod of sending information
  • kvadratuuriamplitudimodulaatiomethod of sending information
French modulation d'amplitude en quadrature
  • modulation d'amplitude en quadraturemethod of sending information
German Quadraturamplitudenmodulation
  • Quadraturamplitudenmodulationmethod of sending information
Hungarian kvadratúra amplitúdómoduláció
  • kvadratúra amplitúdómodulációmethod of sending information
Italian modulazione di ampiezza in quadratura
  • modulazione di ampiezza in quadraturamethod of sending information
Japanese 直交振幅変調
  • 直交振幅変調 (chokkō shinpuku henchō)method of sending information
Polish modulacja QAM, kwadraturowa modulacja amplitudowo-fazowa
  • modulacja QAMmethod of sending information
  • kwadraturowa modulacja amplitudowo-fazowamethod of sending information
Portuguese modulação de amplitude em quadratura
  • modulação de amplitude em quadraturamethod of sending information
Russian квадрату́рная амплиту́дная манипуля́ция
  • квадрату́рная амплиту́дная манипуля́ция (kvadratúrnaja amplitúdnaja manipuljácija)method of sending information
Spanish modulación de amplitud en cuadratura
  • modulación de amplitud en cuadraturamethod of sending information
Cite this entry
APA

quadrature amplitude modulation. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/quadrature%20amplitude%20modulation

MLA

“quadrature amplitude modulation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quadrature%20amplitude%20modulation. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “quadrature amplitude modulation,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/quadrature%20amplitude%20modulation.

Source: quadrature amplitude modulation on Wiktionary, CC BY-SA 4.0.