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elefante72

join:2010-12-03
East Amherst, NY

dont cry for lightsquared

The problem is that the original l-band was meant for MSS, and for those who dont know GPS specifically uses a low-power PRC so that multiple sats can transmit on the same frequency and not "interfere" with each other. The bands that lightsquared for 4GLTE was not designed for terrestrial and this signal is billions of times more powerful than the GPS signals.

These freq are meant for supplementing GPS signals where the sat-based signal cannot penetrate objects, NOT for 4G LTE.

Now there are two different signals L1 (what consumer GPS use) and L2 (high-precision/military). Make no mistake these lightsquared devices will still interfere w/ consumer GPS, however because of the nature of the L2 signal (much harder to track) it will pretty much render them useless.

Now we know that cells are pretty much harmless in planes, but if you have a new lightsquared device on the plane and dont turn it off, you can now interfere w/ the planes GPS. I would call that a problem.

In addition when lightsquared did their tests the "bent" there transmitters lower to the ground than what they would actually need to deploy in the wild, obviously mitigating the actual interference.

Now dont cry for lightsquared, they got this for "free" in an acquisition, so it's not like they are out dollars, and also they havent actually produced any handsets (which would clearly show the problem).

This is yet one of the first situations of the bandwidth wars, and the government needs to step in and protect our GPS frequencies because however today most GPS receivers use L1, many more designs in the future will use L2 with the need for more accurate positioning.

So what lightsquared is trying to do is to reclassify free spectrum they got for 4GLTE when in fact those freq were never meant for it, and now are pushing for the government to give them "free" spectrum worth billions in other bands for nothing.

This is pure corporate squatting, and IMHO lightsquared should go out of business or pay the billions for actual 4G spectrum.

sparc

join:2006-05-06
said by elefante72:

Now dont cry for lightsquared, they got this for "free" in an acquisition, so it's not like they are out dollars, and also they havent actually produced any handsets (which would clearly show the problem).

if they paid for the company they acquired, then they paid for the spectrum. Unless you're saying the government gave lightsquared the spectrum entirely for free.....

tennisman94

join:2010-02-18
Palm Harbor, FL
kudos:2
said by sparc:

said by elefante72:

Now dont cry for lightsquared, they got this for "free" in an acquisition, so it's not like they are out dollars, and also they havent actually produced any handsets (which would clearly show the problem).

if they paid for the company they acquired, then they paid for the spectrum. Unless you're saying the government gave lightsquared the spectrum entirely for free.....

The government gave the company they bought the spectrum for free, but only for ground to satellite communications.

Ulmo

join:2005-09-22
Aptos, CA
reply to elefante72
My only nit is that Lightsquared paid for the company that had the spectrum, which in my book means they paid for the spectrum, but that's almost a semantical discussion. I agree with everything else you said. Just because they paid for it, however, doesn't mean they get to pretend it is something it is not, even with some corrupt government officials helping them.