Posted on 07/01/2011 11:40:09 AM PDT by ShadowAce
Part of the acronym "FCC" is "Federal".
If we're looking for a Federal agency to do The Right Thing, we're deluding ourselves.
You're listening on a frequency you're not supposed to. Your problem, you fix it.
Sounds to me like LightSpeed needs to make the adjustments. GPS was there first, and is used by critical systems. Which is not to say, if as LS claims, the GPS industry has been less discriminatory in it’s bandwidth tuning, that the GPS players don’t have work to do. But LS is the new player, and if there’s even a 1 in 10,000 chance that it might interfere with Nav/ILS systems (and I’m not talking Tom Tom), then, no go LS.
Just thinking .. the amazingly critical calculations for GPS navigation in aircraft; really only matters at airports. You need to drop that aircraft on a very specific spot and speed. Flying cross country, an error of a couple yards just doesn’t matter. It only matters where the rubber meets the runway.
Everywhere else - standard positional GPS should be ‘good enough’.
I've been thinking the exact same thing for a year.
Oh, well then. Nothing to see here, move along.
Wait until the lowest cost bidder in China wins the award to manufacture it all.
Probably some congress critters or important donors are invested init...just a guess....
LS also seems to be bleeding over quite a bit. Their problem, they should fix it.
So you buy some property next to an existing one. You want to build a fence on the property line, but your neighbor complains that you can't do that because he had planted his garden five feet into your property. You have someone demanding that you curtail your use of your property because he didn't properly contain his activities to his own property.
Lightsquared shouldn’t have gotten those frequencies in the first place. But since they got them, they need to be sure their use of them doesn’t interfere with existing devices. That definitely includes the “only” 200,000 aviation devices that are the most expensive and critical units.
I'd need some evidence to counter this statement from the report:
"The reason for this is not because LightSquared would be improperly transmitting in the GPS band. Rather it is because legacy GPS receivers do not adequately reject transmissions from base stations operating in the adjacent frequency band because the GPS receivers have been deliberately or, sometimes, inadvertently, designed or manufactured with the assumption that there would be no adjacent-band terrestrial transmissions.."
That’s LS’s position, but I’d need to see some evidence that my Garmin is indeed accepting interference from a different band.
I’ve heard that the owner of LS is a big Obama contributor.
Read the report and produce evidence to the contrary. It’s perfectly possible that LS is overstepping its band, but I haven’t seen anything to that effect yet.
I’ll take a look at it from both sides and see who’s right and who’s wrong. If you come up with anything please do let me know.
Thanks.
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