- Guard band
Guard band has several meanings. __NOTOC__
Radio and electronic signalling
In radio, a guard band is an unused part of the
radio spectrum betweenradio band s, for the purpose of preventinginterference .It is a narrow
frequency range used to separate two wider frequency ranges to ensure that both can transmit simultaneously without interfering each other. It is used inTDM /Time division multiple access /FDM /Frequency division multiple access . It may be used in both wired orwireless communications, so that adjacent frequency bands on the same media can avoid interference.Recording
In sound, video, or data recording, it refers to the unrecorded space between tracks on
magnetic tape or othermagnetic media which prevents the signals on adjacent tracks from interfering with each other.Quality assurance
In the realm of product
quality control , it is the amount that minimum product specifications are increased to ensure that even with measurement uncertainty the product meets the minimum specifications with a specified level of confidence.Computer graphics
In
computer graphics , the guard band is a virtual area of the screen bordering the real screen to which any rendering is ignored, used to simplify clipping. This technique is calledguard band clipping .
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