
Dictionary of Radar Terms
Dictionary of Antenna Terms
Antenna and Amplifier Manufacturers
The detail links in the table below open in the companion web site, which is also operated by this site.
Frequency Band | Freq Usage | |
HF Band | 3MHz - 30MHz | - |
VHF Band | 30MHz - 300MHz | - |
UHF Band | 300MHz - 1.0GHz | - |
L Band | 1.0GHz - 2.0GHz | - |
S Band | 2.0GHz - 4.0GHz | - |
C Band | 4.0GHz - 8.0GHz | C Band detail |
I Band | 8.0GHz - 10.0GHz | - |
X Band | 8.0GHz - 12.0GHz | X Band detail |
Ku Band | 12.0GHz - 18.0GHz | Ku Band detail |
K Band | 18.0GHz - 27.0GHz | K Band detail |
Ka Band | 27.0GHz - 40.0GHz | Ka Band detail |
Q Band | 36.0GHz - 46.0GHz | - |
Editor note; As a general statement the United States government no longer uses the letter designations shown in the table above. The US government considers the designations to be legally ambiguous [if memory serves]. It seems that in some cases the military still uses many of these designations, but many of those documents are not updated for years at a time. I have a note on another page where I indicate that: Letter designators of radio frequency bands are imprecise, deprecated, and legally obsolete. However I did not make note of which government agency said that, although it would seem that the FCC would be the agency putting out a statement like that.

Radar Frequency Bands
The Scientist and Engineer's Guide to Digital Signal Processing *.pdf