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<div class="moz-cite-prefix">On 2014-03-08 09:30, <a class="moz-txt-link-abbreviated" href="mailto:ussapa@gmail.com">ussapa@gmail.com</a>
wrote :<br>
</div>
<blockquote
cite="mid:13264767.12.1394212579612.JavaMail.polux@Lucky"
type="cite">
<pre wrap="">I'm still testing a few things, a.o. osmtracker. first headache was the gps innacuracy. I am using a Samsung S2, and yesterday osmtracker gave me a 40-50m accuracy, my first tracks looked like my 3 years old drawing lines. </pre>
</blockquote>
Smart phones GPS are said to be less accurate than those of
dedicated GPS devices.<br>
But I wonder if it's a chip or antenna problem. I noticed that the
signal strength increases if the phone is put on a metal plate.<br>
The precision depends on the number and angle of satellites that are
"fixed" and should be the same for all applications.<br>
It varies according to being inside a building vs in open air, to
the thickness of the cloud cover, TOD and maybe other factors.<br>
It can be observed with applications: "GPS Status and Toolbox" and
(not tried) "GPS Test" and "inViu GPS-details".<br>
To shorten startup time, be sure to have correct AGPS settings as
well as EPO if applicable.<br>
With a MTK6577, I can get 40-50 m too after fix but, later and in
good conditions, 10 m and even 5m.<br>
inViu have a tracker too. You might want to check it.<br>
<blockquote
cite="mid:13264767.12.1394212579612.JavaMail.polux@Lucky"
type="cite">
<pre wrap="">Funny thing is that both google maps and osmand could show my location with much more precision !?</pre>
</blockquote>
You don't say how you measure accuracy in the various cases.<br>
I wonder if the accuracy that osmtracker reports in each GPX
waypoint isn't different from that of GPS Status.
<blockquote
cite="mid:13264767.12.1394212579612.JavaMail.polux@Lucky"
type="cite">
<pre wrap="">searching for some web solutions, funny enough, unchecking the 'use sensor aiding' helped a lot. I'm getting 5-20m now. Is that the best I should expect or am I missing some additional tweaking?</pre>
</blockquote>
I can't find 'use sensor aiding'.
<blockquote
cite="mid:13264767.12.1394212579612.JavaMail.polux@Lucky"
type="cite">
<pre wrap="">As it seems, osmtracker is a standard in the field, I was wondering if there is a custom belgian xml file available for the buttons presets ?
</pre>
</blockquote>
Not that I know of.<br>
I found an important usability issue and I have sent them a bug
report.<br>
What do you think about it?<br>
They don't seem very responsive.<br>
<br>
Cheers,<br>
<br>
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<td>André.</td>
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