On installations I've seen RF do funny things. I've also read on here about people installing ferrites on the USB cable. What kind of ferrites are people using? I thought you had to get a certain mix or type as all ferrites are not created equal. Are there any additional things people are doing with grounding or ferrites and if so could you share on here? N1XBM Apparare Scientor Paratus Communicare Allstar Node # 27086, 41540, 41812, 42086