Reason for GPS problems found!
thomas at gstaedtner.net
Tue Jul 15 12:42:07 CEST 2008
I write this to community, not to devel or owners because everyone should
*sbeh*, one of the people in #neo1973-germany IRC-channel found the reason
for the GPS problems.
The problem only occurs if a SD card is set in. Doesn't matter if it's
mounted or in use, it just has to sit in the socket.
The TTFF went from no fix at all to TTFF 120 seconds indoor(!!!), and about
40 seconds outdoor.
Two other people could verify this with about the same results.
We'll do more tests later, but for now we surely know what's causing the
problem (and it seems to be a EMC problem).
First results show at the same devices, even outdoor, that there is no fix
in over 400 seconds with SD card, the signal seems to be at least 10 to 20
dB worse (so bad, that most satellites don't even appear).
Testresults from other people appreciated.
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