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Grounding - electrical box is on the other side of the house

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I read the Solid Signal white paper on grounding. I can't post a link because I don't have five posts yet.

But where I want to mount the antenna is on the other side of the house from the electrical box. I'd like to have the coax enter the house at the gable vent, about 20' above ground level, and want to run a #10 ground wire down the gable fascia to the corner of the house, about 50 feet, and attach to its own ground rod.

This breaks at least three rules in the white paper: (a) not grounding to main service ground, (b) running the ground wire more than 20 feet, and (c) using less than a #6 ground wire for a separate ground rod.

Southern California rarely gets lightning. So the primary purpose would be to guard against other issues. Am I asking for trouble by breaking these "rules"?

If I install the antenna on the other side of the house, closer to the electrical box which is on the side of the attached garage, I will have a long run of coax across my garage and house attics (guessing 100+ feet). Since I am planning on using an amplified antenna (Televes DAT790 with the indoor only amp), this is going to have to be solid copper core from the amp to the antenna. I suppose I could install an electrical outlet in the garage to plug in the amp, then run copper-clad coax 100 feet to the TV, but that's getting complicated.

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