Difference between revisions of "Spectrum"
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|+'''Spectrum Table''' | |+'''Spectrum Table''' | ||
|- | |- | ||
− | ! style="background:#efefef;" | | + | ! style="background:#efefef;" | Abbreviation |
− | ! | + | ! style="background:#efefef;" | Name |
+ | ! style="background:#efefef;" | Spectrum | ||
|- | |- | ||
− | | ELF || Extremely Low Frequency < 3 kHz | + | | ELF || Extremely Low Frequency || < 3 [[kHz]] |
|- | |- | ||
− | | VLF || Very Low Frequency 3 - 30 kHz | + | | VLF || Very Low Frequency || 3 - 30 [[kHz]] |
|- | |- | ||
− | | LF || Low Frequency 30 - 300 kHz | + | | LF || Low Frequency || 30 - 300 [[kHz]] |
|- | |- | ||
− | | MF || Medium Frequency 300 kHz - 3 MHz | + | | MF || Medium Frequency || 300 [[kHz]] - 3 [[MHz]] |
|- | |- | ||
− | | HF || High Frequency 3 - 30 MHz | + | | HF || High Frequency || 3 - 30 [[MHz]] |
|- | |- | ||
− | | VHF || Very High Frequency 30 - 300 | + | | VHF || Very High Frequency || 30 - 300 [[MHz]] |
|- | |- | ||
− | | UHF || Ultra High Frequency 300 MHz - 3 GHz | + | | UHF || Ultra High Frequency || 300 [[MHz]] - 3 [[GHz]] |
|- | |- | ||
− | | SHF || Super High Frequency 3 - 30 GHz | + | | SHF || Super High Frequency || 3 - 30 [[GHz]] |
|- | |- | ||
− | | EHF || Extremely High Frequency 30 - 300 GHz | + | | EHF || Extremely High Frequency || 30 - 300 [[GHz]] |
|} | |} |
Revision as of 22:09, 25 March 2005
Spectrum is the distribution of wavelengths and frequencies.
In scanning and radio frequency uses, we often refer to a bandwidth of spectrum as a "band". These "bands" are frequencies that exist in a continuous range and usually have a common characteristic which identify it as a type of band.
These bands are divided by the area of the spectrum in which they are located. Those "bands" are commonly accepted to conform to the following table:
Abbreviation | Name | Spectrum |
---|---|---|
ELF | Extremely Low Frequency | < 3 kHz |
VLF | Very Low Frequency | 3 - 30 kHz |
LF | Low Frequency | 30 - 300 kHz |
MF | Medium Frequency | 300 kHz - 3 MHz |
HF | High Frequency | 3 - 30 MHz |
VHF | Very High Frequency | 30 - 300 MHz |
UHF | Ultra High Frequency | 300 MHz - 3 GHz |
SHF | Super High Frequency | 3 - 30 GHz |
EHF | Extremely High Frequency | 30 - 300 GHz |