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LightSquared deals with continued GPS interference  (Source: engadget.com)
U.S. officials say no additional testing is needed to prove the existence of harmful interference

A recent government study found that the LightSquared Inc. wireless service interrupted 75 percent of global-positioning system (GPS) receivers.

LightSquared Inc. is a company looking to offer a wholesale 4G LTE wireless broadband communications network with satellite coverage in the United States. It was founded by Philip Falcone and has had interference issues for years now. Just this year alone, interference concerns were raised by the National Telecommunications and Information Administration (NTIA), USAF Space Command, and the U.S. GPS Industry Council.

Now, a test conducted by the U.S. government has shown that 69 of 92 (75 percent) of receivers experienced "harmful interference" at the equivalent of 100 meters from a LightSquared base station. It was deemed that millions of GPS units were incompatible with the LightSquared service, and it could affect cars, planes, boats and tractors.

The test was performed from October 31 to November 4 for the National Space-Based Positioning, Navigation and Timing (PNT) Systems Engineering Forum, which advises policy makers about GPS issues. The Department of Defense and the Federal Aviation Administration took part in the testing, as well as companies like Garmin Ltd., Trimble Navigation Ltd., Deere & Co., and General Motor Co.'s OnStar unit.

"LightSquared signals caused harmful interference to majority of GPS receivers tested," said U.S. officials in a draft prepared for the review of the LightSquared proposal. "No additional testing is required to confirm harmful interference exists."

LightSquared has proposed that it operate at a reduced power than the levels used during the testing. With low power usage, LightSquared believes its services would only affect 10 percent of devices.

Sources: Business Week, SlashGear



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RE: 10% ???
By DockScience on 12/12/2011 6:44:51 PM , Rating: 2
This is TOTALLY a LightSquared problem... with some enabling help from the Obama admin (who get lots of donations from the Lightsquared investors)

Lightsquared bought spectrum for the EXPRESS and LIMITED use from satellites.

They then asked their admin cronies to change the spectrum license to allow the same power (15KW) from thousands of ground stations that would have been allowed from satellites. Thus the interference issues.


RE: 10% ???
By bigdog1984 on 12/12/2011 7:51:22 PM , Rating: 3
Why is it that people have no concept of time when posting about political problems? Lightsquared licensed the spectrum in 2004. How does the Obama administration have anything to do with enabling their blunder?


RE: 10% ???
By mcnabney on 12/12/2011 8:19:40 PM , Rating: 3
Didn't you get the memo?

Everything that has ever gone wrong in history is Obama and his time machine's fault.


RE: 10% ???
By Dorkyman on 12/12/2011 10:06:12 PM , Rating: 2
...when in fact we all know it was Bush's fault.

Messiah is a brilliant man, Bush an idiot. Why, Bush went to Yale and got some C's, while Messiah went to Hahvahd and got some...wait... Oh, yeah. He refuses to release his grades. Wow, he must be REALLY smart.


RE: 10% ???
By Black1969ta on 12/12/2011 10:55:21 PM , Rating: 2
Stupid Obama, if he hadn't knocked that Apple off the tree Women wouldn't still be fighting gravity! And why did Newton have to be sitting under that tree anyway!


RE: 10% ???
By hartleyb on 12/13/2011 11:13:06 AM , Rating: 2
The problem is that while you are correct that the license was issued 2004, you should also know it was issued for testing not operation, and the Obama administration tried to get the Airforce to coverup the GPS issue by suppressing testimony.

I say let LS and the administration have their way, and the first time a major airliner crashes becuase of positional error let the people sue LS and Obama.


RE: 10% ???
By Just Tom on 12/19/2011 8:18:53 PM , Rating: 2
The original license was modified to allow for use of terrestrial only stations rather than a combination of satellite and terrestrial stations in January of '11. This waiver, whether wise or unwise, was made by the FCC which is controlled by Obama appointees. If it is an unwise move then Obama should indeed bear the blame; if it is a good move, leading to increased competition and minimal impact on GPS function, then Obama should get the credit.

Not everything is Obama's fault, or his credit, but some things indeed are.


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