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Originally Posted by Freeduh
the ones I would like to get are some of the red, and the first 2 into the gray-all of the rest down not so much in fact don't care at all!
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You probably have a good shot at the channels to your south (around compass heading 173) down into the red zone, but I'm not so sure about the ones in the gray because they are coming from different directions. You can only have your antenna point at one direction at a time, so the only way to try for these other stations is to use an antenna rotator.
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we get some extreme wind and weather up here at this altitude occasionally
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The setup I would recommend is the following:
1) Antennas Direct 91XG (this is a UHF only antenna)
2) Winegard YA-1713 (this is a high VHF only antenna)
3) Channel Master 7777 pre-amp (this comes with a VHF/UHF dual input option)
Use a short mast (try not to extend more than about 10 feet beyond the mounting brackets) to limit the stress from the wind. A larger diameter (up to 1.5" diameter) and thicker walled mast will be stiffer/stronger.
Use a very strong mount to hold the mast. There are chimney mounts, wall/eave mounts, tripods, or standalone towers, depending on what works best for your property. It's best to pick a location that is high up and clear of as many obstructions as possible.
Place the 91XG on top, and tilt it upward by about 15 degrees. It's boom includes a mounting bracket that is designed to tilt like this.
Place the YA-1713 about 4 feet below the 91XG. It is not so sensitive to vertical angle, so there's no need to tilt this antenna. Aim both antennas toward the south (compass heading 173).
Run both into the CM 7777, also mounted on the mast, and make sure it's internal switch is set to allow separate UHF/VHF inputs.
Ideally, the bottom antenna should be at least ~4 feet above the roof.
Weatherproof all exposed connectors and cables to make sure no moisture gets inside.
Use RG6 coax for all the connections.
If you want to include an antenna rotator, then you will have two mast sections: a very short section at the bottom to mount the rotator motor, and an upper mast section to hold the antennas.
The reason I'm choosing the 91XG is because it has good gain, it is lightweight, and it doesn't create too much wind load. The fact that it's mounting bracket allow up-tilt is an added bonus since you'll need that to aim the antenna over the mountain ridges.
The reason for the YA-1713 is because KTSC in on a high VHF channel. If you decide to add a rotator and attempt stations to the north, then this antenna will also help with KMGH and KUSA.
The reason for the CM 7777 is because it comes with the ability to take in separate UHF/VHF antennas and it has a low Noise Figure rating. It's well suited to low signal situations like yours.