Frequency shift
In
telecommunication, the term
frequency shift has the following meanings:
- Any change in frequency
- Any change in the frequency of a radio transmitter or oscillator. (Note: In the radio regime, frequency shift is also called rf shift.)
- Frequency-shift telegraphy
- In facsimile, a frequency modulation system where one frequency represents picture black and another frequency represents picture white. Frequencies between these two limits may represent shades of gray
- An intentional frequency change used for modulation purposes
Source: from
Federal Standard 1037C and from
MIL-STD-188
