I just got around to processing the cctv video showing the electrical interference I am experiencing. The cctv power supply and the Arduino processor share the same 12v source from topside through the tether. The ESC’s/T100’s get power from 3S batteries in the WTE. The one thing in common with all is ground. Not sure where to start with getting rid of this problem. Jacob suggested an LC circuit but since the power supplies are independent I’m not sure how that would be wired up. Any help/suggestions would be appreciated.
Here is the cctv video: https://www.youtube.com/watch?v=OWy_j5yuU74&feature=youtu.be