Frequency shift
From Wikipedia, the free encyclopedia
In the physical sciences and in telecommunication, the term frequency shift has the following meanings:
- Any change in frequency
- A Doppler shift
- 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
This article contains material from the Federal Standard 1037C (in support of MIL-STD-188), which, as a work of the United States Government, is in the public domain.
