@priseborough I just connected with the flight controller to export the params. QGroundControl identifies the firmware version as 3.5.3
But unfortunately I do not see that EK2_OGN_HGT_MASK param in the list
This is the params exported from the Flight Controller…
Scratch that one. Tower has an issue exporting params sometimes. I’ll export from QGroundControl and upload it.
QGroundControl has some extra fields in the params file, but it still should be readable by any text editor. And interestingly it identifies the vehicle type as a multi-rotor instead of a heli frame in the comments header: