Frequency Ranges

Frequency (in MHz) = 300 / Wavelength (in m)

and

Frequency (in GHz) = 30 / Wavelength (in cm)

(For greater accuracy use 299.79/Wavelength)

Electromagnetic waves with wavelengths under 1 mm are called light. See "Visible Spectrum"

The whole used Frequency spectrum reaches from 100 Kilohertz (kHz) to 12.5 Gigahertz

(GHz).

Used for television are:

the VHF range, it contains

-Band I (47 - 68 MHz), also used for broadcast

-Band II (87.5 - 108 MHz), also used for broadcast

-Band III (174 - 230 MHz)

the UHF range with

-Band IV (470 - 582 MHz)

-Band V (790 - 960 MHz)

Used for broadcast are:

-LW (148.5 - 283.5 kHz)

-MW (526.5 - 1.606.5 kHz)

-KW (3.950 - 26.100 kHz)

-UKW (87.5 - 108 MHz), VHF Band II

http://en.wikipedia.org/wiki/Radio_spectrum