Hi, unfortunatly I lost my 600 T-Rex yesterday. I had Geo Fence 300m radius 30m height activated and Pos hold with alt hold and RTH available. Maybee I lost radio contact to the receiver by unknown reason. Heli didn´t respond to commands but 300m is well within radio distance.
Geo Fence was programmed but was not working, RTH did not work because of receiver failure. Transmitter was beeping (Graupner MZ24 with SUMD, GR24).
Heli was going straight away and crashed after failsafe took over with last servo position and low rpm.

Is there any possibility of avoiding this? Second receiver possible activated on the spirit? Graupner ist supporting second receiver.