Usually, when everything works OK, a new day will get a new trackingline as soon as 1 position is updated.
So if you see history in Google Earth older than 24 hours, you just need to log a new position, and the KML file will be reset.
If you want to do this during a day, you could select "clear track".
So you never start with a clean sheet, except the first time you use Reperion. You will always see your latest 24h track.
If positions get added and added and the line is never reset , you must try clear track from your client once.
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