It is time to correct the misconception that powerflarm “sees” mode S transponder. It is more like sensing, not seeing. Powerflarm only gives you an alert that there is a transponder equipped aircraft somewhere nearby with an estimate distance and altitude difference. It does not tell you where the aircraft is or where it is heading. Better than nothing but a far cry from flarm and 1090 ADSB which provides exact position, heading and collision alarm.

Ramy