Band III

Band III is the name of a radio frequency range within the very high frequency part of the electromagnetic spectrum.

Band III ranges from 174 to 230 MHz, and it is primarily used for radio and television broadcasting.

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Television

North America

The band is subdivided into seven channels for television broadcasting, each occupying 6 MHz.

Europe

European Band III allocations vary from country to country, with channel widths of 7 or 8MHz. The standard channel allocations for most of Europe are 7 MHz wide and are as follows:

The Irish system is shown below.

Radio

The band has only come into use for radio broadcasting within the last decade, and is used for Digital Audio Broadcasting. It is subdivided into a number of frequency blocks

Worldwide Usage

In the UK and part of Ireland, Band III was originally used for monochrome 405-line television. However this was discontinued by the mid 1980s. Some European countries (including Ireland) still use Band III for higher definition colour television, although this is now being gradually phased out. The use of the band for Digital Audio Broadcasting is now being widely adopted.

In the United States, use of the band for colour television broadcasts is still widespread.

See also

• Band I
• Band II
• Band IV
• Band V