Rule Breaking ideas don't get bigger than using space to bring high-speed broadband to 86% of Americans, but that's what upstart wireless network operator LightSquared proposes. There's just one problem. Delivering on that promise could mean disrupting global positioning systems, a new report says.
According to The Wall Street Journal, LightSquared and a trade group representing the GPS industry will present test results to the Federal Communications Commission that show the carrier's LTE signals can interfere with GPS systems positioned too closely to its towers. Both General Motors
Frequency is the issue. LightSquared is building its network using old satellite frequencies that operate near GPS bands, which leads to comingling. But that's only part of the problem. Unlike GPS, LightSquared doesn't broadcast directly from satellite. Instead, its space-based signals are amplified and then routed from some 40,000 ground-based cell towers. Comingling becomes interference around those towers, as stronger LTE signals overwhelm neighboring GPS broadcasts, the Journal reports.
The news must come as welcome relief for Clearwire
For its part, LightSquared is expected to tell the FCC that interference issues can be fixed via filtering both its network equipment and GPS devices. These filters would, in theory, differentiate signals in order to reduce interference.
LightSquared could also choose to use just a portion of the frequency assigned to its LTE network. The added spectrum distance would -- again, in theory -- reduce interference. In many ways, it's the same principle that governs your home wireless network. If you and your neighbor both operate Wi-Fi routers on channel 1, you'll likely interfere with each other. Move from channel 1 to channel 11, and the static should disappear. The downside? Such a solution would lower bandwidth.
Whatever the outcome, LightSquared's deployment could face delays and crimp plans to begin broadcasting to customers in the first half of next year. Clearwire could use the breathing room. Do you agree? Disagree? Let us know using the comments box below.
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Fool contributor Tim Beyers is a member of the Motley Fool Rule Breakers stock-picking team. He didn't own shares in any of the stocks mentioned in this article at the time of publication. Check out Tim's portfolio holdings and Foolish writings, or connect with him on Twitter as @milehighfool. You can also get his insights delivered directly to your RSS reader.
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