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The RF Spectrum Tutorial
Frequency Range Classification
3 - 30 kilohertz

30 - 300 kilohertz

300 - 3000 kilohertz (3 megahertz)

3  - 30 megahertz 

30 - 300 megahertz

300 - 3000 (3 gigahertz) 

3 gigahertz - 30 gigahertz

300 - 3000 gigahertz

 Very low frequencies (VLF)

The long wave band (LW)

The medium wave band (MW)

The short wave band (SW)

Very high frequency band (VHF)

Ultra high frequency band (UHF)

Super high frequency band (SHF)

Microwave frequencies

Higher in frequency than this are infra red, visible light, ultra violet, X rays etc
which are all forms of Electro Magnetic radiation.

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