Register

DOT: Not So Fast, LightSquared

Gemini Sparkle

Key Takeaways:

  • Department of Transportation officials, after FAA and DOD testing, concluded that LightSquared's 4G broadband technology significantly interferes with the majority of GPS receivers and poses a dangerous disruption to aviation safety systems, including TAWS.
  • These findings directly contradict LightSquared's claims of minimal interference and cast serious doubt on the FCC approval for their proposed mobile satellite service.
  • Even with LightSquared's agreement to use a different portion of satellite spectrum, tests continued to show harmful interference with general-purpose GPS receivers and flight safety systems.
  • LightSquared profoundly disagrees with these conclusions, blaming the interference on GPS devices themselves rather than their proposed network.
See a mistake? Contact us.

Despite bold predictions by LightSquared that the firm’s proposed mobile satellite service would soon win FCC approval, Department of Transportation officials on Wednesday said the company’s 4G broadband technology does indeed interfere with “the majority” of global positioning system receivers and poses dangerous disruption to aviation safety systems.

The findings, announced after recent testing by the FAA and Department of Defense, throw into serious doubt claims by LightSquared that its ground tower network would interfere only with a limited number of GPS receivers, and not high-performance aviation equipment. The DOT also said the LightSquared network interferes with TAWS, which obtains its position data from GPS. Over the next several weeks, the analysis of the findings will be completed and a final report will be sent to the FCC, said Transportation Department officials.

Ready to Sell Your Aircraft?

List your airplane on AircraftForSale.com and reach qualified buyers.

List Your Aircraft
AircraftForSale Logo | FLYING Logo
Pilot in aircraft
Sign-up for newsletters & special offers!

Get the latest stories & special offers delivered directly to your inbox.

SUBSCRIBE