Good news!

This site is slowly getting archived in favor of our new wider-community effort at Traquito.

Head over to our new site at Traquito to check out the $14 WSPR tracker, realtime maps/graphs, and other great resources!

After trying and failing with other materials, we are currently making custom balloons using a material called TR9.  It is a 40 micron PE/PA/EVOH/PA/PE film that meets the requirements of;

The TR9 is supplied by Vepak in the Czech Republic.  This is the material that TT7 uses, he was kind enough to send us the supplier’s contact info (thanks Tomas!).