White space device at FCC http://arstechnica.com/news.ars/post/20070522-new-superfast-wireless-broadband-device-prototype-submitted-to-fcc.html
While the Federal Communications Commission moves ahead with planning for the upcoming 700MHz spectrum auction, the White Space Coalition has submitted a second prototype white space wireless broadband device to the FCC for testing. White space devices could use the so-called white space in the current analog television spectrum (2MHz to 698MHz) to deliver wireless broadband service. Former FCC chief engineer Edmond Thomas (and current technology policy advisor for the law firm of Harris, Wiltshire & Grannis, which is representing the Coalition) told Ars that he believes white space broadband could deliver download speeds of up to 80Mbps, which would make it extremely competitive with fiber-to-the-premises solutions like Verizon's FiOS networks. The newest white space prototype is manufactured by Philips Electronics of North America and consists of a TV tuner, a digital processing board, and a PC which provides the UI, control, and signal processing. It's proof-of-concept hardware intended to demonstrate that it's possible to sense the presence of TV signals and transmit wireless IP data in a way that does not interfere with TV. According to an FCC filing seen by Ars Technica, the new prototype is capable of picking up analog and digital television signals as well as wireless microphone signals (which operate in the same part of the spectrum). It works similarly to the Microsoft-manufactured spectrum sensing device submitted earlier this year. Microsoft also submitted a transmission device to the FCC for testing which will be used to show that white space broadband transmissions won't interfere with TV signals.
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