An inflight/in-aircraft trial was successful today. As miniadsb is a passive device it can be used inflight most of the time, with the usual restrictions during take-off and landing. As are SBS-1 and Radarbox (don't know about Aurora).
Directly below the upper transponder antenna of a B737-300 the device showed no signs of overload, but was still able to track adjacent airplanes on approach to BNN VOR and in the BNN hold, too. I will try to make some portion of the flight log accessible here as a video later.