Re: airave

Author	All Replies
tmh @verizon.net	reply to chlen Re: airave said by chlen: it has 20-30 feet of wire to a powerful GPS antenna, but it would work in the basement since that is what it is for. I'm beginning to think the GPS is required more for syncing the CDMA chip sequence. CDMA cell towers need an accurate timesource to stay in sync. It's one of the reasons why you can still get a good signal from multiple towers even when individual towers have a marginal signal. All GPS satellites carry an atomic clock, so putting up a GPS antenna is an an easy way to get the time. If your local femtocell is to work the same way, it needs to sync up too. Of course, the provider can probably add in other interesting "features" like limiting the calling area. Have you actually tried using it out of the country to see if it'll lockout? This need for a time signal seems like a shortcoming of CDMA femtocells, since you must always put the GPS antenna somewhere close to the outside. Using NTP won't get you an accurate enough timelock. You probably couldn't use it in a basement facility of an office building for example. Looks like UMA's a better bet in this case.
tmh @verizon.net	to forum · permalink · 2009-09-04 05:13:03 ·
chlen Ethically Challenged Premium join:2001-01-16 Albany, NY	Maybe, the time sequencing is a part of it. The rep told me pretty openly that they simply did not want people plugging it in Europe and being able to use sprint like a domestic. That it was to verify location. The GPS seems pretty powerful on the device though, and does need a lock. You could not set the device up in your basement unless you put it near a window, but you would want it near the wifi router anyways. -- This is not the greatest post in the world, no, this is just a tribute! Слесарь-гинеколог
	to forum · permalink · 2009-09-04 08:00:01 ·
tmh @dodo.com.au	said by chlen: The rep told me pretty openly that they simply did not want people plugging it in Europe and being able to use sprint like a domestic. Might be worth while to try it just for grins. If it works, you're golden.
tmh @dodo.com.au	to forum · permalink · 2009-09-06 06:56:40 ·

Femtocells Slow To Catch On > airave