keying frequency

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• Keying (telecommunications) — Keying is the shaping of a signal to convey information, known as modulation. Modulation can be used to represent a digital message as an analogue waveform. This is known as keying and several keying techniques exist (these include phase shift… …   Wikipedia

• Frequency-change signaling — In telecommunication, frequency change signaling is a telegraph signaling method in which one or more particular frequencies correspond to each desired signaling condition of a telegraph code. The transition from one set of frequencies to the… …   Wikipedia

• Frequency-exchange signaling — is frequency change signaling in which the change from one significant condition to another is accompanied by decay in amplitude of one or more frequencies and by buildup in amplitude of one or more other frequencies.Frequency exchange signaling… …   Wikipedia

• Frequency-shift keying — Passband modulation v · d · e Analog modulation AM · …   Wikipedia

• Frequency Shift Keying — Bildung eines binären FSK Signals. Oben: Quelldaten als eine Folge von logisch 1 und logisch 0. Mitte: Unmodulierte Trägerfrequenz Unten: Moduliertes FSK Signal. Die Frequenzumtastung (englisch Frequency Shift Keying, FSK) ist eine… …   Deutsch Wikipedia

• Frequency-shift keying — Modulation par déplacement de fréquence Exemple de modulation FSK cohérente La modulation par déplacement de fréquence (MDF), plus connue sous sa dénomination anglophone de frequency shift keying (FSK) est un mode de modulation de fréquence… …   Wikipédia en Français

• Frequency modulation — See also: Amplitude modulation In telecommunications, frequency modulation (FM) conveys information over a carrier wave by varying its frequency (contrast this with amplitude modulation, in which the amplitude of the carrier is varied while its… …   Wikipedia

• frequency shift keying — dažninis manipuliavimas statusas T sritis automatika atitikmenys: angl. frequency shift keying vok. Frequenztastung, f rus. частотная манипуляция, f pranc. modulation par déplacement de fréquence, f …   Automatikos terminų žodynas

• frequency-shift keying — noun A form of frequency modulation in which digital information is transmitted through discrete changes of the frequency of a carrier wave. Syn: FSK …   Wiktionary

• keying (modem) —    Process of modulating a carrier signal to encode binary information. Keying in modems is normally performed by changing the frequency or phase of the carrier signal …   IT glossary of terms, acronyms and abbreviations

• frequency shift keying —    (FSK)    Frequency modulation of a carrier by a modulating signal that varies between a fixed number of discrete values (a digital signal) …   IT glossary of terms, acronyms and abbreviations