Re: They obviously didn't understand 'caveat emptor'
" The bands adjacent to GPS are designated as space->earth only,"
No they weren't. They were designated for satellite mobile comms. That involves earth->space too, presumably in the same frequency band, or you're in for a very one sided phone call.
Given that, don't you think that the earth based transmitter that fulfilled the earth->space leg would have caused similar problems? Especially as that transmitter would have been co-located with a GPS rx, namely the one in the satellite mobile phone?
The problem with this whole debate is that no-one is thinking clearly about what the actual technical issues are, were, and always have been. In summary,
1) The GPS industry have been lazy in ignoring frequency allocations that were always going to cause them problems
2) The FCC didn't even begin to think what the technical issues would have been resulting from the sat phone band allocation
3) The FCC were negligent (as you hinted) when permitting the change use; it would have been a good time to have re-assessed the band allocation given widespread GPS usage
4) The FCC are being cowards in not telling the GPS industry "tough luck”
5) LightSquared have been naive in trusting the cowardly FCC to do their job properly. A little testing would have revealed the problem ages ago and avoided the whole thing.
As a result:
1) LightSquared's investors are going to lose a lot of money
2) The US taxpayer is going to lose a lot of money through under exploitation of valuable spectrum space, and possibly as a result of being sued by LightSquared for negligence
3) A viable technical solution to the whole issue (the filters that LightSquared developed) is probably not going to see the light of day because the freetard GPS industry's lobbying looks to have paid off
Many people will crow if and as seems likely when LightSquared are dead and buried. But really it is the tax payer and consumer who is going to lose out the most. That's not good for anyone?