Tridge also happily uses an earlier version of OpenTX called er9x I believe. I've worked with him on a bit of the firmware you're talking about here, but it's n

Tridge also happily uses an earlier version of OpenTX called er9x I believe. I've worked with him on a bit of the firmware you're talking about here, but it's not the same stuff. The most impressive thing about the SiK firmware you're talking about is the stupid range you can get from them on a good day; line of sight can be tens of kilometers (say 40+), and could potentially be used to communicate with satellites, all while using a max of 5W transmit power at 900MHz. There's plenty of more info on both the CanberraUAV and 3D Robotics blogs from him and others about both these topics. The following talk as LCA was about such satellites, and there was some talk about using these radios for these open source satellites.