Re: GPS

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From: Timo Jyrinki
Subject: Re: GPS
Date: Monday, July 14, 2008 - 1:18 am

2008/7/13 BlueStar88 <BlueStar88@xenobite.eu>:

My personal current belief is that those FRs are generally no better
than eg. yours or mine. It's simply a matter of software used and
especially the place used (some countries have also better GPS
coverage than others), plus whether one really has a table or so where
the device can easily be mounted firmly. If you hold it in your hand,
still otherwise, it might not be steady enough to get the fix (or does
someone know otherwise, eg. what kind of movement might corrupt the
received bits?). Or are there some people who get a fix while moving
Neo around?

Since the software has zero GPS data saving features etc., it's no
wonder people easily think "it's broken". Especially, like in my case,
if people don't have previous GPS usage experience or don't know how
hard it's actually to "start from scratch" (scanning the whole sky)
without any eg. estimate on current whereabouts or any other help. And
also it doesn't help that if eg. people use AGPS UI which clears any
received data every time it's started. One reason I believe it's not
bad hardware reception is that when the fix is gotten, the fix stays
better than on many "real" GPS hardware.

Still, I've yet to experiment more on what would be best ways to get
the initial fix. Even if feeded initial data, it seems relatively
impossible to get the fix around my place. I'm not sure what could be
improved still for the first fix, since after the fix is gotten it
stays so well one would imagine the fix should also be possible to get
in an (relatively) open area with a clear sky.

-Timo

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Messages in current thread:
GPS, Yorick Matthys, (Mon Jun 23, 9:32 am)
Re: GPS, Joseph Reeves, (Mon Jun 23, 10:21 am)
Re: GPS, Peter Kraker, (Mon Jun 23, 2:15 pm)
Re: GPS, Kai Römer, (Fri Jul 4, 7:32 am)
Re: GPS, Al Johnson, (Sun Jul 6, 9:12 am)
Re: GPS, Kai Römer, (Mon Jul 7, 12:40 am)
Re: GPS, Kevin Zuber, (Mon Jul 7, 3:07 am)
Re: GPS, Al Johnson, (Mon Jul 7, 3:26 am)
Re: GPS, Al Johnson, (Mon Jul 7, 3:34 am)
Re: GPS, Kai Römer, (Mon Jul 7, 4:39 am)
Re: GPS, Federico Lorenzi, (Mon Jul 7, 5:06 am)
Re: GPS, Al Johnson, (Mon Jul 7, 7:37 am)
Re: GPS, Mathias Ballner, (Mon Jul 7, 9:24 am)
Re: GPS, Marcus Bauer, (Mon Jul 7, 10:04 am)
Re: GPS, Yogiz, (Mon Jul 7, 10:56 am)
Re: GPS, Francesco Cat, (Mon Jul 7, 11:47 am)
Re: GPS, Chris, (Mon Jul 7, 1:33 pm)
Re: GPS, Al Johnson, (Mon Jul 7, 2:40 pm)
Re: GPS, thomasg, (Mon Jul 7, 2:47 pm)
Re: GPS, Joerg Reisenweber, (Mon Jul 7, 4:35 pm)
Re: GPS, W.Kenworthy, (Mon Jul 7, 6:25 pm)
Re: GPS, W.Kenworthy, (Mon Jul 7, 7:02 pm)
Re: GPS, Francesco Cat, (Mon Jul 7, 11:50 pm)
Re: GPS, AVee, (Tue Jul 8, 2:11 am)
Re: GPS, Al Johnson, (Tue Jul 8, 2:37 am)
Re: GPS, Tilman Baumann, (Tue Jul 8, 3:05 am)
Re: GPS, flexd, (Tue Jul 8, 4:09 am)
Re: GPS, Neng-Yu Tu (Tony Tu), (Tue Jul 8, 4:17 am)
Re: GPS, Jay Vaughan, (Tue Jul 8, 4:19 am)
Re: GPS, flexd, (Tue Jul 8, 4:24 am)
Re: GPS, flexd, (Tue Jul 8, 4:36 am)
Re: GPS, Neng-Yu Tu (Tony Tu), (Tue Jul 8, 4:42 am)
Re: GPS, Marcus Bauer, (Tue Jul 8, 4:42 am)
Re: GPS, AVee, (Tue Jul 8, 4:42 am)
Re: GPS, matt joyce, (Tue Jul 8, 4:52 am)
Re: GPS, Al Johnson, (Tue Jul 8, 10:31 am)
Re: GPS, Chris, (Tue Jul 8, 10:58 am)
RE: GPS, steve, (Tue Jul 8, 12:57 pm)
Re: GPS, Chaosspawn23, (Tue Jul 8, 11:11 pm)
German getting started, simarillion, (Tue Jul 8, 11:56 pm)
Re: GPS, Jeffrey Ratcliffe, (Wed Jul 9, 10:57 pm)
Re: GPS, Thomas Gstädtner, (Thu Jul 10, 1:19 am)
Re: GPS, Alexander Paersch, (Fri Jul 11, 4:36 am)
Re: GPS, Jeffrey Ratcliffe, (Fri Jul 11, 4:50 am)
Re: GPS, Alexey Feldgendler, (Fri Jul 11, 5:07 am)
Re: GPS, Torfinn Ingolfsen, (Fri Jul 11, 6:02 am)
Re: GPS, Ole Kliemann, (Fri Jul 11, 10:57 am)
Re: GPS, Tobias Diedrich, (Fri Jul 11, 11:56 am)
Re: GPS, Russell Sears, (Fri Jul 11, 2:34 pm)
Re: GPS, Bumbl, (Fri Jul 11, 2:57 pm)
Re: GPS, andres, (Fri Jul 11, 3:43 pm)
Re: GPS, Russell Sears, (Fri Jul 11, 4:00 pm)
Re: GPS, Russell Sears, (Fri Jul 11, 10:56 pm)
Re: GPS, Jonathan Spooner, (Sat Jul 12, 2:25 am)
Re: GPS, William Kenworthy, (Sat Jul 12, 5:11 am)
Re: GPS, Al Johnson, (Sat Jul 12, 5:49 am)
Re: GPS, Ole Kliemann, (Sat Jul 12, 7:27 am)
Re: GPS, Jim Morris, (Sat Jul 12, 1:59 pm)
Re: GPS, Yorick Moko, (Sun Jul 13, 2:50 am)
Re: GPS, Russell Sears, (Sun Jul 13, 3:48 am)
Re: GPS, Mikko Rauhala, (Sun Jul 13, 4:05 am)
Re: GPS, Ole Kliemann, (Sun Jul 13, 6:00 am)
Re: GPS, arne anka, (Sun Jul 13, 6:39 am)
Re: GPS, BlueStar88, (Sun Jul 13, 10:14 am)
Re: GPS, Joerg Reisenweber, (Sun Jul 13, 10:21 am)
Re: GPS, Russell Sears, (Sun Jul 13, 3:36 pm)
Re: GPS, Timo Jyrinki, (Mon Jul 14, 1:18 am)
Re: GPS, thomasg, (Mon Jul 14, 1:34 am)
Re: GPS, Kalle Kärkkäinen, (Mon Jul 14, 1:45 am)
Re: GPS, Kai Römer, (Mon Jul 14, 2:08 am)
Re: GPS, BlueStar88, (Mon Jul 14, 4:22 am)
Re: GPS, Al Johnson, (Mon Jul 14, 5:41 am)
Re: GPS, thomasg, (Mon Jul 14, 6:05 am)
Re: GPS, Yorick Moko, (Mon Jul 14, 6:39 am)
Re: GPS, Timo Jyrinki, (Mon Jul 14, 6:49 am)
Re: GPS, Jay Vaughan, (Mon Jul 14, 7:23 am)
Re: GPS, thomasg, (Mon Jul 14, 9:20 am)
Re: GPS, C R McClenaghan, (Mon Jul 14, 9:26 am)
Re: GPS, arne anka, (Mon Jul 14, 9:42 am)
Re: GPS, Al Johnson, (Mon Jul 14, 10:06 am)
Re: GPS, thomasg, (Mon Jul 14, 10:06 am)
Re: GPS, C R McClenaghan, (Mon Jul 14, 10:46 am)
Re: GPS, arne anka, (Mon Jul 14, 10:54 am)
Re: GPS, C R McClenaghan, (Mon Jul 14, 11:26 am)