The RC-100 electronic switch looks simple, but if the switching and RX halves are not isolated, won't there be RFI issues? How many of you are using it for ignition? The company is advertising it for ignition, but actually shows photos and wiring schematic for a smoke system on/off.

There appears to be ignition power (and RFI) flowing through one side of the RC-100 switch via the spliced-in connection The other end of the very small RC-100 switch plugs directly to your receiver.

Sounds like this could lead to an RFI problem.


1. totally optical system, or
2. a servo pushing on a LONG nyrod to a mechanical switch

either #1 or #2 sounds like a better way to guard against stray RFI with an engine kill switch.