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The Tv reception at your location is Very Strong Signal Strength.
Above the Peak of the Roof install a ,
http://www.antennacraft.net.
HBU11K antenna aimed at about 328 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Use a Real and Actual magnetic compass to aim antenna , do not trust a cell phone , tablet or etc. compass.
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A antenna system amplifier is not required.