Cable Worried About 'White Space' Tech [Light Reading's Cable Digital News]
The NCTA has weighted in on the proposal being floated by Google to allow unlicensed use of the broadcast television spectrum in the "white spaces" between the frequencies used by broadcasters. The NCTA's letter, sent to the FCC, warns that the adoption of Google's "white space" proposal would interfere with broadcast signals, interfere with cable headends and interfere with fixed-line use.
Google proposes to offer broadband wireless Internet access using so-called "white space" devices, which are designed to avoid interfering with the licensed uses of the same spectrum - namely broadcasting television. But, there's a problem. The FCC's testing of these "white space" devices has so far shown that they are unable to avoid interfering with television signals.
NCTA's letter reads:

"Television receivers, both analog and digital, are simply incapable, as the FCC's tests have shown, of shielding the TV picture from such interference," the NCTA claims, noting that degradation problems are more pronounced in apartments and other multi-dwelling units where people share common walls.
Cable systems, the NCTA points out, "have no 'white spaces,' " because they deliver services on all the channels in the broadcast TV band.
"The lack of vacant channels on cable poses unique risks of interference to television viewing on any channel where high-powered TV band devices operate nearby." Wherever interference occurs, "broadcast programming will be wiped out for the entire community served by that cable system," the letter warns.
So, while Google's proposal for wireless broadband sounds like a fantastic idea, the execution is likely to cause a bunch of headaches for TV viewers.
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