Frequency-change signaling
From Wikipedia, the free encyclopedia
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.[1]
[edit] References
This article incorporates public domain material from the General Services Administration document "Federal Standard 1037C" (in support of MIL-STD-188).
[edit] See also
[edit] References
- ^ Rudolf F. Graf (1999). Modern Dictionary of Electronics. Newnes. ISBN 0750698667. http://books.google.com/books?id=uah1PkxWeKYC&pg=PA304&dq=%22Frequency-change+signaling%22.
