Advisory Board Says LightSquared Can't Coexist With GPS

Recent tests have shown that even the modified plans of the US company LightSquared to start up a national high-speed wireless broadband network would cause harmful interference with GPS signals, federal officials said. The U.S. Federal Communications Commission granted partial approval to LightSquared in January 2011, and ordered tests.

No further testing is warranted after findings that LightSquared disrupts many GPS receivers, the National Executive Committee for Space-Based Positioning, Navigation & Timing said yesterday in a letter to the U.S. Commerce Department.

"There appear to be no practical solutions or mitigations that would permit the LightSquared broadband service, as proposed, to operate in the next few years months or years without significant interference with GPS," officials said in a letter to the Commerce Department.

"The government testing is unfair and shrouded from the public eye," Terry Neal, a LightSquared spokesman, said in an e-mailed statement yesterday.

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