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Solve : FCC White Space Rulles? |
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Answer» Not exactly news, but it is a possible breakthrough taht can speed up the Great White Space Wi-Fi. ...The TV bands consist of six-megahertz channels designated 2 to 51 in four bands of frequencies in the VHF and UHF regions of the radio spectrum (54-72 MHz, 76-88 MHz, 174-216 MHz, and 470-698 MHz). ... Fixed devices MUST incorporate a geo-location capability and a means to access a database that provides a list of available TV channels ...must contact a database to obtain a channel list before operating and re-check the database at least once daily.]That was a real burden. But now: Quote Eliminated the requirement that TV bands devices that incorporate geo-location and databas access must also listen (sense) to detect the signals of TV stations and low power auxiliary service stations (wireless MICROPHONES).The database change can mean a lot to short-range routers that what to use the White Space for penetration in areas where there are the current 802.11 frequencies just don;t do the job. It will reduce the cost a lot. This could mean a rural Wi-Fi Hot Spot could easily cover an area of dense vegetation and get distances well beyond 3 km (about 2 miles). Or maybe a lot more. Depending on the power limits. Quote Fixed devices are permitted to operate with up to one watt transmitter power output and may use an antenna that provides up to 6 dBi of gain.That means effective power of four watts. Comments? |
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