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TA-t3 is offline TA-t3
2008-09-28 , 10:56
Posts: 3,841 | Thanked: 1,079 times | Joined on Nov 2006
#31
TomTom always puts you on the nearest road, even if it's quite far away.. it was a bit funny watching my "car" following the normal road while in actuality I was taking a turn along a bypass some 50-60 meters (think yards, for you imperial guys..) away.
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lardman is offline lardman
2008-09-28 , 11:26
Posts: 2,102 | Thanked: 1,309 times | Joined on Sep 2006
#32
(In addition to the systematic error the GPS isn't as good at calculating altitude as longitude/latitude so there's an additional inaccuracy there, but I'm not sure how big it is.)
Iirc about 1.5x the DOP of the horizontal position, so not far off, but still a bit worse.

I am surprised by that as my N810 seems to get my attitude correct when I'm on an airplane when comparing to the inflight gps video.
It depends on where you are. Last time I checked was somewhere above Italy and my GPS was about 100 meters different from the in-flight video.
Two things here, firstly the error in the geodetic is small compared to your flight altitude, so it will seem to be about right and secondly, it depends where the in-flight data actually comes from - if it's a GPS it will probably have the same offset error
 
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fragos is offline fragos
2008-09-28 , 18:43
Posts: 900 | Thanked: 273 times | Joined on Aug 2008 @ Fresno CA USA
#33
Thanks lardman. Bit by bit my understanding grows. After using Maemo Mapper a bit more I may write what appears to be a needed HowTo -- Getting Started.
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lardman is offline lardman
2008-09-28 , 22:06
Posts: 2,102 | Thanked: 1,309 times | Joined on Sep 2006
#34
After using Maemo Mapper a bit more I may write what appears to be a needed HowTo -- Getting Started
Please do, it's sometimes hard to know what new members will ask/want to know. I'm sure we'll be happy to step in and add any technical details, etc. if you don't know them by now
 
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GeneralAntilles is offline GeneralAntilles
2008-09-28 , 22:11
Posts: 5,478 | Thanked: 5,222 times | Joined on Jan 2006 @ St. Petersburg, FL
#35
Originally Posted by fragos View Post
Thanks lardman. Bit by bit my understanding grows. After using Maemo Mapper a bit more I may write what appears to be a needed HowTo -- Getting Started.
Maemo Mapper has excellent built-in help that you may want to see.
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fragos is offline fragos
2008-09-28 , 23:32
Posts: 900 | Thanked: 273 times | Joined on Aug 2008 @ Fresno CA USA
#36
Originally Posted by GeneralAntilles View Post
Maemo Mapper has excellent built-in help that you may want to see.
I was pleasantly surprised at how good the help files are. They are organized as a reference by function -- most common documentation approach. What I plan is task oriented which will make the application more approachable to those unfamiliar with GPS devices and technology. Are these help files available in an electronic format that can be used on a desktop machine or perhaps printed out?
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andrewbee is offline andrewbee
2008-09-30 , 18:56
Posts: 5 | Thanked: 0 times | Joined on Sep 2008
#37
The GPS on my N810 does not seem to work at all. For example, standing outside, with a pretty clear sky, it just says "Searching", and never finds any satellites at all. This is with giving it 10 mins to find one. (Yes, enable GPS was checked).

Anyone else had a dead GPS in their 810?

Thanks
 
lardman is offline lardman
2008-09-30 , 19:27
Posts: 2,102 | Thanked: 1,309 times | Joined on Sep 2006
#38
Try using the agps-ui to see if it will then lock onto some sats.
 
gemniii42 is offline gemniii42
2008-09-30 , 20:08
Posts: 833 | Thanked: 124 times | Joined on Nov 2007 @ Based in the USA
#39
Originally Posted by andrewbee View Post
The GPS on my N810 does not seem to work at all. For example, standing outside, with a pretty clear sky, it just says "Searching", and never finds any satellites at all. This is with giving it 10 mins to find one. (Yes, enable GPS was checked).

Anyone else had a dead GPS in their 810?

Thanks
Evidently you do not have time or resources to search the forum.
An unmodified, new N810 might take 30 minutes to get it's first lock.
Read the threads.
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andrewbee is offline andrewbee
2008-10-02 , 18:56
Posts: 5 | Thanked: 0 times | Joined on Sep 2008
#40
Diablo sorted it. It almost works like a real GPS unit now!
 
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