Protection for a tv antenna which is located on a roof should be at three points.
Roof antenna lightning protection.
The roof and walls will shield the antenna from lightning strikes.
Attic installation is best because it gets you as high as practical.
Therefore optimal lightning protection indicates do not put the antenna above all other lightning attractors.
For a roof antenna the biggest adjustments you can make involve protecting your antenna at all the places it can be exposed.
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That is unless you have a metal roof or radiant barrier.
1 ground connections at the antenna the antenna mast and lead in wires as well as control wires for the rotator or similar equipment should have a ground routed via the shortest possible path without sharp bends or kinks to a ground rod which is connected to the main earth ground for the home electrical system.
A lightning protection system will not keep your house from being struck by lightning but a properly installed system will instead provide a safe path from the site of the lightning strike which is often on the roof to the ground.
As with most risks certain precautions can be taken that will greatly minimize your chances of lightning striking your roof antenna and starting a fire.
There are three spots to secure.
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Two disconnect the antenna lead in an ground it as close to the entry point as possible.