[sl1982]

Thank you for the info. I built the computer so i am familiar with the power supply (desktop). Its was not a cheap one so i am suprised that it would be causing so much emi. As for other sources of interference in the house i can pretty much rule thise out as i shut off every other breaker except the one the amplifier and hdhomerun are on. The computer and the amplifier are on seperate circuits already and the computer is about as far away from the antenna as i can make it. Short of putting it in the basement.

Edit: putting the side of the computer case on did seem to improve things a bit. So it is probably radiated through the air. Can the amplifier itself pick this up? They are in adjacent rooms.