Re: [Gpsbabel-code] Problem with NMEA file from Canon GP-E2

[Thorben T. <r0...@co...>]

On Thu, 31 May 2012 18:31:27 +0200 Dirk Stichling <myt...@me...> wrote:
> I have a NMEA file created by a Canon GP-E2 GPS logger:
> http://www.mytracks4mac.com/tmp/canon.log
> 
> I tried to convert it to a GPX file using gpsbabel but no track points
> have been converted.
> I am not that familiar with NMEA and wasn't able to identify the reason.
> 
> Can anybody help?

no expert here, but as nobody else answered - i just tried, and found:
all data in the file is ignored, apparently because your gps indicates it
does not have a fix (yet).
see: http://aprs.gids.nl/nmea/#gga

if i edit your file to put a "1" in the empty spot after ,E,:
$GPGGA,053231.858,5000.7781,N,00820.6831,E,,04,1.6,91.0,M,,,,0000*0C
=>
$GPGGA,053231.858,5000.7781,N,00820.6831,E,1,04,1.6,91.0,M,,,,0000*0C

gpsbabel will generate output for that entry:

$ gpsbabel -i nmea -f canon.log -o gpx -F /dev/stdout 
<gpx
[...]
<trkpt lat="50.012968333" lon="8.344718333">
  <time>2012-05-24T14:40:28Z</time>
[...]


> Thanks,
> Dirk

- T.