Anonymous ID: a250d5 April 6, 2020, 3:01 p.m. No.8706230   🗄️.is 🔗kun   >>6537

>>8705972

>>8705939

Found in a forum that squawk 7777 is a radar calibration code.

I am told that the FFMSNE is the call of the radar in Schneeberg/Austria being calibrated, but that doesn't tell me what it is in the sky doing that calibration.