| Class |
Abbreviation |
Range |
Wavelength |
|
Ultra low frequency |
ULF |
30 to 300 Hz |
10,000-1000 km |
|
Extremely low frequency |
ELF |
300 to 3000 Hz |
1000-100 km |
|
Very low frequency |
VLF |
3 to 30 kHz |
100-10 km |
|
Low frequency |
LF |
30 to 300 kHz |
10,000-1000 m |
|
Medium frequency |
MF |
300 to 3000 kHz |
1000-100 m |
|
High frequency |
HF |
3 to 30 MHz |
100-10 m |
|
Very high frequency |
VHF |
30 to 300 MHz |
10-1 m |
|
Ultrahigh frequency |
UHF |
300 to 3000 MHz |
1 m - 10 cm |
|
Superhigh frequency |
SHF |
3 to 30 GHz |
10-1 cm |
|
Extremely high frequency |
EHF |
30 to 300 GHz |
1 cm - 1 mm |
Abbreviations:
Hz - Hertz
kHz - Kilohertz
MHz - Megahertz
GHz - Gigahertz
km - Kilometer
m - Meter
cm - Centimeter
mm - Millimeter