I have had this problem. I was told by tech support to never plug the mrf300 inot any surge protector. Once I started doing this "most" of my RF problems have disappeared. I did put one into a pureav pf30 the other day with no probelm. I think it really depends on the ac line. It must pick up interference, but you would think plugging it into hte line conditioner would help. Anyone else experiencing this.
