You are having RF interferance with you IRF-6. This is a common problem. where is your IRF-6 and antenna located in reference to your eququipment and television? You should Get the IRF-6 at least 6' away from your stack of equipment and get the antenna as far away as possible. TV as well, they put out alot of RF interferance also. Out of curiosity, what is your stack of equip.?