Holux GR245 exports wrong elevation data (-48m MSL)

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My GR-245 is working fine, but elevation is always around -47.8 to -47.9 m MSL. That can't be true.

The real altitude and altitude difference for tracks is displayed in the device, so I know it DOES log elevation data.

Any ideas?

Bild von mdeweerd

Did you set the correct log

Did you set the correct log format (on the far righ to fthe connect button is indicated initially 'Default device' - you have to set that to Holux GR-245).  Holux changed their format between devices in that in altitude has become speed (in m/s) and speed became altitude.

If that does not help you can share one of your logs with me so that I can have a look.

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ooops... That's it. I set the


That's it. I set the format to Holux M-241 not GR-245. Now everything is correct!

Thanks for your help!