GPS receiver broken (but no SDcard problem)

Sebastian Krzyszkowiak seba.dos1 at
Mon Jun 15 17:05:03 CEST 2009

On Mon, Jun 15, 2009 at 11:09, Alexander
Lehner<lehner at> wrote:
> Hello list,
> it seems that my GPS died. It started with the effect that satellites were
> seen, but no fix, then finally the timestamp stood still, and now no
> timestamp is received and no sats are seen any more.
> Now I'm not sure whether it is 'only' the antenna that is broken, so
> that I could live with an external antenna or the whole GPS unit is dead.
> gpspipe -r localhost says:
> $GPGGA,,,,,,0,00,,,,,,,*66
> $GPGSA,A,0,,,,,,,,,,,,,,,*1f
> $GPGSV,1,1,00*79
> $GPRMC,,V,,,,,,,,,*31
> $GPGLL,,,,,,V*06
> $GPVTG,,,,,,,,*52
> ...
> Is this output produced from the GPS chip or from software?
> When I do a 'cat -e /dev/ttySAC1' it returns immediately with no output
> (/sys/../power_on is '1').
> Are there any more debugging facilities to locate the problem?
> I've tried all the SD/CARD, connector fixes from the Wiki, but this
> obviously not the reason.
> I have a FreeRunner with the latest SHR image.
> Thanks for any further hint,
> Alex.

Check your dmesg. If you have rxerr messages, then you have the same
issue, as I.

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