[HOT] Feedbacks about smartphones use for OSM field surveys

[Boris Cornet]

Hello!

Yesterday (Monday, July 9, 2012) Guttorm Flatabø commented:

>> * gps a major problem. Seems to b the concl of others, larger ngos with tech teams, too

> Yes, and the to make matters worse, in my experience accuracy is
> usually highly optimistic. However, quality varies a lot, remember
> phones are used for navigation in cities with bad signal quality all
> the time so it cannot be too bad. Also, high end phones usually have
> the latest and greatest GPS, including ability to use Russian system etc.

Unfortunately this is not true. Car navigation does not need exact
measurements, since it takes an optimistic approach: The GPS says
we're /near/ that road, so we assume we're /on/ that road.

Cell phones use cheap chips and small antennas, which is not good for
accuracy. And the ability to receive the single (!) compatible Russian
satellite (so far) is merely an advertising gag.

-- 
So long,
   Boris