Simulating an RF remote control using an Arduino
I actually just finished an arduino library for this exact thing, although only the first 2 channels work so far. Try this, see if it works (assuming you still need it) https://github.com/BrittonPlewes/GodoxRemote
You for sure can see the signal on a scope, but I had to make my own version of SimpleRcScanner to capture and analyze the signal.