Jonathan, what worked for me was a more complex grounding system. What I did was run a 30 amp dedicated circuit with isolated ground rods outside, I have four ground rods and may add more. What this does is directs more noise to ground
this made the most difference in my system, I then installed a whole house surge protection unit, so far everything is great.
this made the most difference in my system, I then installed a whole house surge protection unit, so far everything is great.