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   Wireless WiFi networks are generally confined to the dozens of square meters of room. Recently, the United States has developed a "super Wi-Fi" a substantial increase in the signal reception range to 160 km, and now First trial in Houston, Texas.

   "Super Wi-Fi" is not strictly a WiFi network, using the two different frequencies. Super Wi-Fi TV unused blank frequency constructed wireless network requires specially designed equipment, have obvious advantages compared with ordinary WiFi. Theoretically, the transmission distance can reach 160 km Super Wi-Fi. Because some of the limitations of the actual operation, this wireless network coverage radius of several kilometers.

    Wireless network development director of the New America Foundation said Calabria Raiser, Super video wave can travel longer distances from buildings, trees blocking more harsh weather that the technology can be used to provide high-speed Internet service to sparsely populated areas In addition, it is so that consumers have the ability to self-built networks 'hot spots', easy to leave home. "

   R & D company "MobileTrax" consultant Purdy said that the new technology may have been a preliminary application, but existing WiFi devices do not support the need to re-develop a dedicated receiver away from popularity there is still some time.

   At the same time, he said, Rice University last year and early this year in Houston and Wilmington trial "Super Wi-Fi received satisfactory results, the enterprises of the United States and the United Kingdom, Brazil and other countries concerned about.

   Network giant Google and Microsoft have said that the next year will launch "AIR.U" plan, the new technology is extended to the township University. Supplier of telecommunications services with the new technology is expected to ease network congestion caused by the smartphone boom.

   Super Wi-Fi, technically known as IEEE 802.22 and IEEE 802.11af of the U.S. Federal Communications Commission Federal Communications Commission (FCC) coined the term, used as a long-distance wireless Internet. Super Wi-Fi name criticized because he was not authorized by the Wi-Fi Alliance's Wi-Fi technology.

   The FCC adopted a "blank frequency Act on September 23, 2010.

   February 26, 2012, the United States first the public super Wi-Fi network in the North Carolina Wilmington began the development.