ATIS Telecom Glossary
Thursday, August 21, 2014

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frequency-shift keying (FSK)
Frequency modulation in which the modulating signal shifts the output frequency between predetermined values. Note 1: Usually, the instantaneous frequency is shifted between two discrete values termed the "mark" and "yyspace" frequencies. This is a noncoherent form of FSK. Note 2: Coherent forms of FSK exist in which there is no phase discontinuity in the output signal. Synonyms frequency-shift modulation, frequency-shift signaling.

 

 

 

 

 

 

 

 

 

 



 
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