I just put up a 3 stack of tribanders toward EU and they fire over the shack in that direction. On 10 mtrs I keep getting a "No Rig" on the freq. readout on the WL entry window..It did hurt anything
I did have a similar problem with 10 meters knocking my rig interface off-line when the beam was pointed in certain directions. As you already suspect, ferrite beads will help, but also in my case I