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White Space Allocation
The term “white space” refers to slivers of unused radio frequencies that sit between licensed broadcast television channels in the 150MHz to 700MHz spectrum bands. White spaces have been allocated between used analog television channel frequencies specifically to avoid interference between channels. The planned conversion from analog television broadcasting to digital television in February 2009 may free up large swatches of white space which can potentially be used to provide new services – such as wireless broadband. However, ideas about deploying new services over white space frequencies are not without controversy as other technologies, such as wireless microphones for example have historically relied on these frequencies.