[OSM-talk] Quality of Sirf star 3 tracks disappointing...

[Lars Aronsson]

Emil Vaughan wrote:

> I've just started recording tracks with a Sirf Star 3 GPS sending data
> to my N80 phone, and recording it with GEtrack (python isn't available
> yet for my phone) - and I'm a bit annoyed to find my tracks are all
> over the place, and only rarely seem to coincide with the roads
> already in osmeditor...  So do I need to get a proper GPS unit......?
> I haven't made my tracks public as they are so bad!

Do your tracklogs document the number of satellites received or 
the HDOP/VDOP estimates of accuracy?

With time and experience, I've come to use the satellite view 
(showing signal strengths) on my Garmin while I'm moving around.  
It's no point in running around if no signal is received.

> Also, most of the roads near me are not named - can I name them 
> ? (from memory, not from a map of course). Do I need a photo of 
> the street sign before I can name them?

You don't need photos.


-- 
  Lars Aronsson (lars at aronsson.se)
  Aronsson Datateknik - http://aronsson.se