I am getting a ground loop hum from a recently installed satellite dish. Does anyone know how to break the ground on a satellite signal? Regular cable TV isolators do not work with satellite signals. Any help would be appreciated.

Thanks

Unfortunately putting two transformers back to back doesn't work with a satellite signal. At least it doesn't work with mine. It breaks the connection completely and I get no picture at all. Thanks for your response it is appreciated.

Mr Vinyl

The satellite dish tuner probably has S-Video and composite video outputs, but those will have a ground connection. But it probably also has an RF outputs that is modulated to a standard television broadcast frequency, like channel 3. That output can be isolated using RF transformers.

If you can't isolate the system after the tuner, then you will have to solve the grounding problem another way. You might want to connect earth ground for the dish at the same point as earth ground connection of your AC outlets. If you're lucky, they come into the house fairly close to one another.

Everything you say is correct. However using an RF transformer on the RF output doesn't break the ground loop for some reason. I am going to try your idea on grounding it to the same earth ground as the AC outlets. It's about thirty feet away. Hopefully this will work.

Thanks again for your help and advice.

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