Just regular Geographic lat/long as decimal degrees. Here's how they appear in a GPX file: <trkpt lat="+42.3029603" lon="-118.6241553"> Latitudes are + for northern hemisphere. Longitudes are - for Western hemisphere. Greenwich, UK is +51.4778, -0.0015 (hey, not bad given that they didn't have GPS back then). Andy
I know, but what projection system are they using? There are literally a zillion ways to record GPS data - unless you know what system is being used, you can't use the data reliably.
That's probably a question for forum.mikrokopter.de, Derek. Let us know what you find out, please. Andy.