The article correctly describes the definition of "white spaces" when it said "[a] year ago, the FCC voted to allow the use of unlicensed wireless devices to operate in "white spaces," empty portions of the TV spectrum band."
Methinks you're simply placing too much emphasis on the phrase "700 MHz." The upper limit of the now condensed TV band is 698 MHz, and the article also stated "We will quickly see a wave of innovation in wireless products and services around 700MHz" which could mean that they're targeting channels 50 and 51 for their white space designs, which encompasses 686 to 698 MHz, which is "around" 700 MHz.
John----- Original Message ----- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx> Sent: Monday, November 16, 2009 10:48 AMSubject: [opendtv] Company Claims to Have Solved White Space Interference Problem
As far as I can tell in this piece, there is a confusion between the UK meaning of "white spaces" and the US meaning.Over here, white spaces are NOT those vacated with the digital TV transition. Over here, white spaces refer to TV frequencies in the new, crunched-down TV band, not the 700 MHz band. White spaces are TV channels unused in a given market. So, the problem of detecting non-interfering white spaces is not the same as it is in the examples they give, i.e. in the 2.4 GHz band, where the signal you want to avoid is going to be relatively strong compared with signals in other nearby channels.Bert
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