Paul's right, the best tool for doing this is SeeYou. The hardest part is getting the serial adapter connection set up. Then you just use the Connection Wizard.

There are a couple of other hints on turnpoint files documented on my website at http://www/soaringdata.info/airports. Select the "Getting Started" link and then look for "Working with a Volkslogger".

Lynn Alley
"2KA"