None of the JU-AIR aircraft were FLARM equipped according to the Bundesamt fuer Zivilluftfahrt - the Swiss Civil aviation authority. This is difficult to understand by the way, particularly because they often operated in a region with a lot of glider activity. And the ATC radar of Zurich does not cover the crash region at this altitude. There's a chance that the military primary radar might have picked up some signals, but certainly not with a frequency of 1 Hz like the Flarm.
However, they might have carried a GPS device that recorded the flight.
Last edited by clearedtocross; 10th Aug 2018 at 17:16.