Hi @DarkKnightCH ,
We offer other receivers to be installed on the m500 as well, but roughly:
weight and size, indoor flying was a primary first use case, spectrum is good for that. For outdoor it works but the range isn’t great, so you could use another receiver. The satellite receiver 100 percent works as we’ve shipped hundreds in this config, but please choose from the options that fit your need for longer range. If you need BVLOS, consider LTE instead, but you should be savvy to setup a VPN server!
No main reciever needed. The satellite receiver is put into binding mode via a button in QGC. We’ve bound hundreds of vehicles this way. After pressing the button, the reciever flashes it’s LED quickly to indicate it’s in binding mode.
Please note, there are knock offs “spektrums” in the world that may not work.