So this ubec it came with the ferrite ring and that is plug to 1 of the 2 auxiliary power jst plug and it goes to the gimbal. Should i also plug the fpv tx to main battery using ferrite ring ?i did not no those ring are to reduce noise good o to know.If you are having issues with noise put a ferrite ring on the power supply. It will clean it up nicely. It is much better to run constant voltage from a UBEC than to run variable voltage from a lipo for the gimbal.