Encyclopedia > Frequency-shift keying

  Article Content

Frequency-shift keying

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 frequency[?]" and "space frequency[?]". 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.

Source: from Federal Standard 1037C and from MIL-STD-188



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
126

... - 120s - 130s - 140s - 150s - 160s - 170s - 180s - 190s - 200s Years: 121 122 123 124 125 126 127 128 129 130 131 Events: First year of the Yongjian era of the ...