Originally Posted By: wid

I used one of these.. I believe they are for use with cable not sat TV.
you can still use them for SAT TV as well as it still runs through coax cable. I would also try running the satline through a grounded spliter(if you are splitting the signal) or groundable inline junction like the cable companies use to connect to when the outside cable is joined to the inside runs in the house, also make sure these items are in fact grounded to the main ground in the house.

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