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LightSquared Details GPS Industry's Spectrum Transgressions

Aug 11, 2011, 2:39 PM by Eric M. Zeman
updated Aug 11, 2011, 3:15 PM

LightSquared today filed another document with the Federal Communications Commission regarding the potential for interference with nearby GPS systems. In short, LightSquared claims that the GPS industry is ignoring the Department of Defense's recommended filtering standards, as well as ignoring the International Telecommunications Union's international standard for GPS receivers and transmitters. According to the DoD recommendations, GPS systems are supposed to employ filters to make sure GPS signals don't interfere with adjacent spectrum. The ITU's standard calls for a 4MHz guard band between GPS and the nearest spectrum. LightSquared said it is offering the GPS industry a 23MHz guard band, which it says is more than sufficient. However, the GPS industry wants there to be a 32.5MHz guard band protecting it from adjacent signals. LightSquared accused the GPS manufacturers of "simply trying to formalize squatting for free on someone else’s licensed spectrum. The GPS industry has a responsibility to use its licensed spectrum in accordance with international and federal government standards." Earlier this week, the FCC said LightSquared would not be allowed to operate its planned wholesale Long Term Evolution mobile broadband network until the GPS issues are resolved.

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Comments

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This forum is closed.

markrogo

Aug 11, 2011, 5:27 PM

GPS is 1-way

So LightSquared -- as usual -- is yammering in a way that sounds authoritative, but isn't.

They are interfering and can't solve the problem, so they blame someone who isn't even transmitting. genius.

Iknownothing

This is why its important to click the source link and read the actual article before ironically yammering on in a way that sounds authoritative... But isn't.

...

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