RE: RAM Beacon causes servo glitching; Help
Ground is the negative side of the batteries. Grounding to the landing gear doesnt do you any good. As for the chokes, somebody someplace somewhere sells chokes for RC. I finally found the key words to use are "rc ferrite ring" for a google search. Lots of reading from various other forums that should be helpful. I dont really recall where they would be placed, source or destination. That would depend on the source of the noise you're trying to suppress which in this case you know is the beacon system. The RC chokes may or may not be different for the beacon since it will be a different kind of noise from 72mhz. But experimenting would probably prove useful.
Edwin
How about zigzaging the antenna down the fuse instead of straight line.