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| reply to jseymour
Re: It's a shame the government is ruining this wonderful idea said by jseymour:No, it is not.
This has been explained over and over and over and over and over again, here on DSLR and elsewhere. I am NOT going to repeat again what anybody who would do the most basic of Internet research could easily find out for themselves. The "it's GPS' fault" is straight out of LightSquared's mouth. It's patent nonsense. Anybody who repeats it is either a LS shill, utterly clueless, or both.
See above this one comment. GPS receivers have been equipped with inadequate RF filters for many years, and have been allowed to get away with it. I dont care what their neighboring spectrum was "supposed" to be used for, that can change. The GPS industry got lazy, and its showing, and now its only more in the news. The GPS industry is entirely at fault, because the GPS industry refused to put proper RF filters on their devices for many years(many of which are still in use today), and many new GPS devices still do not have proper RF filters. It has been shown in studies, that if the GPS devices have proper RF filters, there was no interference. | |
 r81984Fair and BalancedPremium
join:2001-11-14
Katy, TX | Not true. | |
| reply to Chubbysumo
said by Chubbysumo:See above this one comment. GPS receivers have been equipped with inadequate RF filters for many years, and have been allowed to get away with it. Parroting LightSquared's repeatedly-discredited arguments isn't going to make them any more valid then they were when LS first made them.
said by Chubbysumo:I dont care what their neighboring spectrum was "supposed" to be used for, Whether you care or not is inconsequential. Spectrum allocations, all spectrum allocations, have assigned uses. That can only be changed if such changes are in the public interest and are "practical." In this case, the requested change was deemed impractical.
said by Chubbysumo:It has been shown in studies, that if the GPS devices have proper RF filters, there was no interference.
It's only been "shown" by LightSquared's studies. Every other study and experiment I've seen has only gone to prove what any reasonably competent radio person already knew: You cannot stick exceedingly high-powered transmitters near exceedingly-sensitive receivers on nearby frequencies and expect the latter to work well--if at all. It's physics as we know it. Filters cannot fix it, even if it was reasonable to expect millions of existing GPS owners to have their GPS' retrofitted, or throw them away and buy new ones, for the benefit of Falcone & Co.
LightSquared got some spectrum on the cheap and tried to get it re-purposed. It was an effort that any half-way-competent radio engineer could have told them was never going to fly. One can only assume they either had incompetent technical consulting or they ignored good advice. Either way: This is their own fault and, given what the way they've gone about this says to me about them, the sooner they die the better for all concerned, IMO.
Jim | |
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