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Guard band

Technique used to minimize interference between frequency bands From Wikipedia, the free encyclopedia

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This article is about the use of guard bands in radio communication. For computer graphics, see Guard-band clipping. For magnetic tape recording, see Helical scan.

In telecommunications, a guard band is a narrow, intentionally unused frequency band that is placed between adjacent frequency bands to minimize interference between them.[1] It is used in frequency-division multiplexing. Guard bands exist in both wired and wireless communications.

A guard band can also be licensed for use by low-powered devices such as a private mobile phone network.[2]

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