It was me that hit the RTH switch as a test to see if the FC responded as the OSD display was frozen.
What I didn’t allow for was the FC had frozen thinking it was banked over so when I hit RTH it banked over twice as far and went into the death plummet. I had perfect RSSI the whole time though which how I punched out. I think the loss of video is because I was using a high gain helical on my monitor and it just lost signal below the tree line.
My next project is to get the Mavlink telemetry through the S-Port on the R9M so I can ditch the bulky 3DR tx.
I’m also awaiting some 18650’s to make a 3S 6,000Mah pack for longer flights.