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LightSquared Disrupts 75% of GPS Connections In Government Test

Freddybear writes with this quote from BusinessWeek: "Philip Falcone's proposed LightSquared Inc. wireless service caused interference to 75 percent of global-positioning system receivers examined in a U.S. government test, according to a draft summary of results. ... The tests worked off an 'extraordinarily conservative' threshold and didn't show the devices' performance was affected, [LightSquared exec Martin Harriman said]. 'If we're affecting the performance of the device — my goodness, we'd like to be sure that doesn't happen,' Harriman said. The laboratory testing was performed for the National Space-Based Positioning, Navigation, and Timing Systems Engineering Forum, an executive branch body that helps advise policy makers on issues around GPS. It found that 69 of 92, or 75 percent, of receivers tested 'experienced harmful interference' at the equivalent of 100 meters (109 yards) from a LightSquared base station."

3 of 197 comments (clear)

  1. You don't understand how this works do you. by SuperKendall · · Score: 5, Insightful

    Solyndria (another company propped up by the white house despite many reports saying the company was not financial viable) was given a ton of money, which the founders (also heavy donors to the Democratic party) got a lot of, then the company went bankrupt but they left with a few million dollar paychecks.

    It doesn't matter if the company folds. Just that Philip Falcone makes money in the process, which he will.

    --
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  2. Re:Farm GPS, airplanes, and who owns the bandwidth by Anonymous Coward · · Score: 5, Insightful

    Read more of those issues, or read Inside GNSS: this does indeed impact Galileo and it impacts anything within 600 miles of US borders, which means it impacts intercontinental aviation.

    In a letter filed yesterday (July 19, 2011), Heinz Zourek, director-general for enterprise and industry, wrote to FCC Chairman Julius Genachowski that if LightSquared is allowed to begin broadcasting in the band, “What are now neighbour MSS [mobile satellite service space-to-Earth] transmissions at similar receive powers to RNSS [radionavigation satellite service such as GPS and Galileo] would in future be many orders of magnitude higher and with the potential to severely disrupt reception of RNSS signals.”

    He cited analysis — including ESA studies —carried out in Europe that showed interference effects to Galileo equipment would occur from 100 meters to almost 1,000 kilometers (620 miles), “depending on the type of receiver being used.”

    Emphasis mine. Source: "EC Official Adds Galileo, EGNOS Worries to FCC’s LightSquared-GPS Deliberations,"Inside GNSS, July 20, 2011. That's right, July. The Europeans knew this was going to interfere with GPS/Galileo for aviation back in July. They had tested it, and they had numbers showing how far the interference would spread.

    I'll leave it to the tin-foil crowd to speculate on why the FCC is only getting around to publishing its findings now. I'd suggest, though, that what they come up with might not be so paranoid after all in this case. Those who want to dig through some glaring evidence of bipartisan corruption will find it without looking too hard into this story, because the shady deals were conducted practically in the open on this one, from the SkyTerra days on through the past week. The Republicans are already working overtime on trying to assemble a timeline of Falcone's dealings with Obama: if the Democrats were smart, they'd have a team doing the same to show Republican connections, because they are there too (SkyTerra got permission for this back in the Bush era).

    The fact that this story is dying in the back pages while Lindsey Lohan's Playboy spread and the circus clowns that have hijacked the Republican nomination get near-orgasmic coverage is a sad comment on how useless journalism has become.

  3. Re:This is being whitewashed from the white house by Megane · · Score: 5, Insightful

    It's not that they're using "cheap parts". It's that the signal from those little solar-powered tin cans whizzing around in the sky is so weak that adding a notch filter to increase selectivity would significantly affect the ability to receive the signal at all. And they want to drop this elephant right next to it.

    But hey, they paid their donations to the Party, right?

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