Frequency-change signaling
- 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 other may be a continuous or a discontinuous change in the frequency or phase. [cite book | title = Modern Dictionary of Electronics | author = Rudolf F. Graf | publisher = Newnes | year = 1999 | isbn = 0750698667 | url = http://books.google.com/books?id=uah1PkxWeKYC&pg=PA304&dq=%22Frequency-change+signaling%22 ]
"Source: Federal Standard 1037C and MIL-STD-188"
ee also
* Frequency-shift keying
* Frequency modulation
References
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2010.
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