LC Filter added

[NorcoT]

Hey, so after some recommendations previously here I purchased an LC filter to clean up the power supply to the vtx.

I tested last weekend and im still getting some interference at certain throttle positions.

Due space constraints the lc filter is currently up front on my 250, then the wires to the vtx run through the frame (and subsequently above the carbon plate on the other side of the ESCs), the camera power / signal then run from the vtx at the rear of the frame to the camera on the front (again over the same plate on the other side from the ESCs).

I can see now this is probably stupid of me.. from my understanding the lc filter ';stabilises'; the power from the pdb which can be noisey due to varying esc draw and battery supply. So the power coming from the filter is ';clean';, can i now be getting interference due to the EMF influences from the ESCs on the cable after the LC filter but before the power reaches the vtx and camera?

Should i move my vtx up front and shorten all my paths?

[ched]

I know this will be difficult but try and keep as much separation between power wires and esc wires. If possible don';t not run the cables parallel to each other as parallel cables are more likely to pick up emf from the current flow in the other cables.
No idea if this might help but maybe use screened cable between camera and vtx or at least twist the vtx cables.
Some people have had success with ferrite rings and looping cables through them.

Hope the above helps.

[NorcoT]

Thanks for the tips, I will see what I can try. I think the problem got worse when I moved all my arm mounted ESC';s into the frame for neatness. When they were on the arms they were far away from the VTx and power lines. Now they sit directly under..