When you connect your Crossfire to the Pixhawk, what strength is your telemetry typically? I cannot get any better than 20% on mine. It's normally around 15%.
I'm using the Pix 2.1 with APM: Copter V3.4.3, Mission Planner 1.3.52.
I've connected everything as you've written and as shown in the YouTube video. This is really frustrating. Is there a param I need to change in the Pix 2.1 that might affect the signal? Seems like the issue is likely with the Crossfire system or it's fw? I've flashed and tried many different versions of CRSFR fw, all with the same telemetry results (20% is the best I can get).
Also, there's a noticable delay in control, even though I've selected PPM on Ch.1 CRSFR<------>RC IN, so I'm guessing control is being handled by the directly through the telem1 connection with the CRSFR.
Any insight you might offer is greatly appreciated.