I have this Rx in my J-10. It's a great Rx and I have another one going in an F-18. The switch that comes with the Rx plugs directly into a port and you can power on/off with it. If you unplug the switch from the port with the batteries plugged in the Rx stays on. I don't think you can use a separate switch as the leads go to/from the port directly. I have not had any issues with this Rx or switch functionality since I've been flying my J-10.