If you have a long servo cable run, you can lay down a strip of sticky backed aluminum foil, then the servo cable, and another layer of foil on top. Not only does it secure a long cable run down the length of the fuse, but it can shield it too, subject to the two foil layers making electrical contact thru the adhesive layer. The question is, do you connect the foil to the -ve/GND supply to your Rx ?

A ferrite bead would suffice also. But a ferrite bead has weight and will be whipped around at high G manouevers, so secure the connections etc.

It's not as if these jet models are as bad as gasser/weedwhacker models.