 marigoldsGainfully employed, finallyPremium,MVM
join:2002-05-13
Saint Louis, MO
kudos:2 | GNSS is not the solution As I said on the last article like this...
Javad uses the Russian GNSS location system.
That simply is not an acceptable solution for US industries, especially defense related (the DOD itself has its own frequencies).
While GNSS is a good complementary system, you have to have high accuracy GPS with it. |
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| Truth or FUD? "...the GPS industry should have vacated the spectrum years ago" |
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| all I hear is... WHAAAAAAAAAA WHAAAAAAAAAA WHAAAAAAAAAA we have to spend money to fix or borked equipment. |
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| said by ArrayList:WHAAAAAAAAAA WHAAAAAAAAAA WHAAAAAAAAAA we have to spend money to fix or borked equipment.
There is nothing wrong with anyone's equipment. Light Squared wants to use spectrum that impinges on high accuracy GPS systems. These systems are integral to air safety as well as our military (all of which had systems that were designed to the standards that Light Squared now wants to infringe on).
As a more technical explanation, because of the spread spectrum nature of the signals, the "skirts" now can intersect if Light Squared does not provide a sharp enough filter on their transmission. Their "solution" is to force a front end filter on the high precision GPS receivers rather than controlling their own power spectrum AND expect the existing device owners / manufacturers to foot the bill.
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REMEMBER: Stupidity should be painful !! |
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 LinklistPremium
join:2002-03-03
Longport, NJ
kudos:5 | Lightsquared - chutzpah Lightsquared becomes a synonym for chutzpah.
»www.merriam-webster.com/dictionary/chutzpah
Demanding those who are victims of interference caused by your company should pay for the fix is truly arrogant.
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»www.rickperry.org/ |
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openbox9Premium
join:2004-01-26
japan
kudos:2 | reply to ArrayList
Re: all I hear is... LightSquared? It seems to be doing the most whining. Maybe like a 2-yr old it hopes that if it cries enough it will get its way. |
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| reply to mod_wastrel
Re: Truth or FUD? According to the cNet article: "The GPS industry has long relied on equipment that relies on spectrum which bleeds into the spectrum that LightSquared plans to use for its network. While the industry had been warned of its potential use, the GPS companies opted not to change the design of their devices or shield them against potential interference"
So if true, yes, it is the GPS industry's responsibility. They cheaped out and bled into spectrum they are not licenses to use, assuming it would be ok since no one else was using it either, at the time. Now someone is and it is no longer ok. But that was bad design on their part, and in any case you're not entitled to bleed into spectrum blocks that you don't own. Lightsquared seems to be blameless on this particular issue. |
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openbox9Premium
join:2004-01-26
japan
kudos:2 | reply to Linklist
Re: Lightsquared - chutzpah LightSquared is running out of options. It's been throwing around billions of dollars for a while now without much to show for it. Investors are growing more and more wary. The company has to do something. |
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| reply to keyboards
Re: all I hear is... light squared wants to use spectrum that they paid for. |
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 TomekPremium
join:2002-01-30
Valley Stream, NY | said by ArrayList:light squared wants to use spectrum that they paid for.
Then lightsquared should sue them for unlicensed use of their spectrum
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Semper Fi |
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 n2jtx
join:2001-01-13
Glen Head, NY | reply to ArrayList
said by ArrayList:light squared wants to use spectrum that they paid for.
They didn't pay for it. SkyTerra got it for free and LightSquared bought them out. What LightSquared really wants, according to industry analysts, is a frequency swap for more valuable spectrum WITHOUT having to pay for it. They are basically holding GPS hostage in the hopes the government will pay them off with frequencies that could otherwise be auctioned off.
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I support the right to keep and arm bears. |
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openbox9Premium
join:2004-01-26
japan
kudos:2 | said by n2jtx:What LightSquared really wants, according to industry analysts, is a frequency swap for more valuable spectrum WITHOUT having to pay for it. Given the FCC's bungling of this whole Charlie Foxtrot, that's exactly what needs to happen. Swap spectrum, eliminate/mitigate the interference issues, and most everyone is happy. |
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jagged
join:2003-07-01
Boynton Beach, FL | reply to Linklist
Re: Lightsquared - chutzpah how about lazy and stingy sat equipment makers actually fix their wares? Tho I'm sure with AT&T involved there will be some excuse for that not to happen |
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2 edits | reply to pjcamp
Re: Truth or FUD? Yeah, the GPS industry is at fault here. If they use spectrum they are not allocated to, they obviously either need to fix it or buy the spectrum from LS.
There's only so much spectrum to go around though and the future of wireless is more and more data - that spectrum is highly valuable. The FCC needs to set a timetable for the GPS industry to clean up the mess with major fines as a consequence. If the net fines are over $400M, then the LS proposal might be taken seriously by the industry. |
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openbox9Premium
join:2004-01-26
japan
kudos:2 | said by xenophon:The FCC needs to set a timetable for the GPS industry to clean up the mess with major fines as a consequence. Actually, since the regulatory body responsible for mitigating spectrum interference is at fault for allowing this situation to happen, it needs to resolve this dispute. Spectrum reallocation is the best solution IMO. |
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Reviews:
 ·Earthlink Cable ..
| reply to pjcamp
Wrong! GPS receivers do not "bleed". GPS transmitters are hundreds of miles away and the receivers must be very sensitive and must fit in a postage stamp sized device. Spectrum is not "brick wall"; there are guard bands to protect sensitive receivers all over the allocations. Lightsquared ASSUMED they could do whatever they want with the spectrum because they were getting bad advice from someone sorely lacking any real world RF experience. Caveat emptor! They got hosed. Get over it. |
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| reply to openbox9
Re: all I hear is... It's seems to be justified though. LS bought the spectrum so they have a right to use it. The GPS industry is bleeding into their space. The FCC is partly at fault for allowing LS to buy it but the GPS industry was apparently warned about bleeding into that spectrum.
The GPS industry needs to fix this whether LS exists or not because they are wasting a lot of valuable spectrum for a simple function that doesn't need much data. |
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| reply to ArrayList
LightSquared wants to use those frequencies -originally intended for use from space (ie. low power when actually received on Earth) - in a way that they were NEVER intended to be used (ie. high power terrestrial transmissions) which will overpower the receivers on ground-based GPS systems.
If these frequencies are used as originally intended there would be NO interference with ground-based GPS as the GPS receivers are able to filter out the low-power 'noise' in those frequency bands.
What LightSquared is proposing is like a 5 milliwatt baby crib monitoring radio with a 50' range suddenly boosting it's output to 100KW and clobbering all receivers within a 100 mile radius.
Do you ever wonder why AM or FM radio stations are separated by the amounts they are on the radio dial? It's because of interference. Ditto with GPS frequencies and those that LightSquared got their hands on. It's the FCC that screwed up here by letting the GPS guard bands get overrun by LightSquared's shift to high power terrestrial use. Had LightSquared stuck to space-based use of these frequencies, we would not be having this conversation |
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brugar
join:2002-09-16
Las Vegas, NV
kudos:1 Reviews:
 ·Embarq Now Centu..
| reply to jagged
Re: Lightsquared - chutzpah LightSquared becomes a synonym for chutzpah.
LightSquared is not only demanding changes to FCC regulations detrimental to GPS users everywhere, it also demands that GPS users to bear the burden of mitigating the interference created by its proposed network of 40,000 transmitters. |
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 jjoshuaPremium
join:2001-06-01
Scotch Plains, NJ
kudos:3 | All I know is that... Your average GPS consumer is not going to be happy if their devices stop working correctly.
At which point, the offending towers will be located and probably taken off line. |
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