Spectrum
From The RadioReference Wiki
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:
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 |