One thing not mentioned is LightSquared misuse of the spectrum. The spectrum in question is the L1 band, which was set aside for satellite communications. These

One thing not mentioned is LightSquared misuse of the spectrum. The spectrum in question is the L1 band, which was set aside for satellite communications. These satellite transmitted signals appear weak from the ground. A loophole in the FCC rules allows the use of ground based stations to fill-in weak areas of satellite coverage. This is called Auxiliary Terrestrial Component (ATC). LightSquared's plan is to use the ATC loophole to build out a terrestrial ground-based network with very little satellite usage. They are essentially getting valuable ground-base spectrum at the low price of satellite spectrum. LightSquared blaming of GPS receiver manufactures is a bit ridicules. The GPS unit manufactures weren't expecting out-of-spec usage of the neighboring L1 band. The L1 band was set aside for satellite signals, not terrestrial. Somehow none of the press is pointing this out. Here's a good write-up http://www.directionsmag.com/articles/whats-the-deal-with-the-lightsquared-gps-clash/179780 http://www.directionsmag.com/articles/whats-the-deal-with-th...