Originally Posted by wfield0455

Connect a battery directly to the R3, leave the main receiver powered off and turn on your transmitter. If you see the "do you really want to use this receiver" I think that indicates it wants to use the R3 as your main receiver so answer NO. Go into Device Explorer, RC Switch and make sure it's enabled and it should show a non zero ID and give some indication that it's talking to the R3 as an RC Switch if everything is configured correctly. I haven't done this for a while so unfortunately I can't get more specific but if the the ID is all 0s that indicated it doesn't recognize the R3 as an RC Switch and it should provide a way to bind to the RC Switch. Once it finds RC Switch and you get pop ups asking if you want to power up/down when you flip the switch assigned in the RC Switch menu, THEN connect the R3 to the SPS20 mag switch cable and when you turn on the RC switch it should power up the main receiver. If at this point you get the "do you want to use this receiver" question, answer YES and the receiver should connect and you should never see that message again unless you move that receiver to a different model. If you still can't figure it out and need more specifics I'll dig out an R3 and configure it as an RC Switch to refresh my memory and write up step by step instructions.