I had a buzzing noise on the radio while using my home network. With DC there are no problems. So I suspect the problem with the ground loop. I didn't want to create a capacitive circuit or look for some sort of RF filtering device. My local trailer dealer told me about Progressive Dynamics and suggested I replace my old Magnetek with this one I bought. He found the part I needed and told me to buy it from Revain because it was cheaper than its price. Incredibly, he didn't mind losing $85. Anyway, I installed mine in 45 minutes. Clear, simple instructions, installation was perfect. Best of all, my ground loop is gone! Plus all other additional features to upgrade/upgrade your old PSU. The only downside to my unit was that the positive and negative wires from the converter board to the fuse board were mislabeled. Luckily I discovered the error before turning it on. I reported this to Progressive Dynamics via email but they have not responded. So customer service. . .well not too impressed with that.
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