KnowraFrequency-shift keyingLinked fromLinked fromThe 6 pages that link to Frequency-shift keying, each with the reason it gives.All 6Broader topic 3Compared with 3Frequency modulationBroader topic: It uses frequency changes for communication, but selects discrete states rather than continuously tracking an analog message.Quadrature amplitude modulationCompared with: FSK distinguishes symbols by frequency rather than QAM’s two component amplitudes.Carrier waveBroader topic: It carries digital symbols as selected frequencies of a carrier.Dial-up Internet accessBroader topic: Early telephone modems used frequency changes to represent digital data.Phase modulationCompared with: It selects discrete frequencies rather than encoding symbols through phase states.DemodulationCompared with: Its symbol decisions can use frequency measurements rather than phase estimates.