ORIGINAL: sheetsg
OK, I understand the ground wire. I tried something similar, I held the metal ground ring of the un-used plug against the computer case. It did reduce the glitches but did not completely remove them. Difference between us is our computers, mine may not be as well grounded as yours or mine may have move components that make noise.
I'm thinking that we may need some ferrite cores, to block any high frequency noise, on the USB cable , my G2 USB controller does!
Greg.
Hello, I have had the same problems as you all with trimming and glitching in AFPD with a Futaba T6XA some times the plane would go wild and do some crazy chit. Thought it was just because I was new and didn't know how to fly yet. Then I realized that there was interference caused by the signal that you're transmitter is putting out through the cable it is jumping around in the 1/8" stereo plug.
So what I did was un solder the 1/8" jack and the multiplex plug then re soldered the Futaba round plug only on the end of my interface cable then added a ground wire to it which is soldered to the inside of the plug housing (not any prongs) and put a alligator clip on the other end then just clipped it to the case of my computer (I am not sure it actually needed this but I felt it kept a better trim this way).
Hope this helps you're problem as well I know it helped mine out it is 100%%%%%%% rock solid now hey I can hairier and hover with control now and I have only been flying the simm or anything for that matter for a month and 1/2 now but it has only been fixed for two weeks that’s how big the improvement was I couldn’t hover worth crap before I fixed it. I think if you wanted to keep all the different plugs I would buy some good quality ones and try it. Well my fingers are getting sleepy feel free to Email me with any Questions I could even give you my number if you would like.
Good Luck, Doug