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.[1]
See also[]
References[]
- ^ Rudolf F. Graf (1999). Modern Dictionary of Electronics. Newnes. ISBN 0-7506-9866-7.
This article incorporates public domain material from the General Services Administration document: "Federal Standard 1037C". (in support of MIL-STD-188)
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