I would like to be of more help.
However , reverse engineering to the location , as far as I can tell shows no building structures for quite some distance , and moving the pointer to building structures around the area throughs the mileage/kilometers and reception numbers off.
Even so , the Tv reception Signal Strengths are Very Weak.
And the 2 Edge Path = hills/rolling tundra , obstructions across the distance between the Tv transmitters and the reception location and changes in the density of the air makes it Tuff to get reliable reception.
As near as I can tell with limited information of location and or moving the pointer to locations around the area , looks like antenna heights of more then 100 feet high are required to have reliable reception.
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There is a situation of reception known as - ground wave reception.
The signal strengths improve close to the ground.
At the tvfool , I tried lowering the antenna down to 1~~10 feet above ground at many locations around the area , however the signal strengths were very little improved.
Even so , the Actual testing of reception has to be done with the antenna close to the ground.
The reception is tried at various heights and locations closer to the ground.
Ground wave reception is ->100% Experimental <-.
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I am not giving up.
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As a TEST to check.
Recommend replace the matching transformer (balun) with a New matching transformer that connects the antenna to the coax.
Recommend use New loooong coax and and New coaxes to connect every thing up.
Run the New loooong coax through a open door or window direct the Tv.
Check reception with and with out the preamp , when testing reception with out the preamp , the preamp , power injector , power supply , Must Be Completely Disconnected.
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I could recommend a different antenna and amplifier , Winegard HD7698P antenna and a KitzTech , KT-200- Booster amplifier , However I can not say that reliable reception will happen.
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There is a way to receive free satellite Tv channels , known as FTA = Free To Air Satellite Tv.
http://www.ftalist.com ,
http://www.saveandreplay.com , sells the small dish and receiver.
It is interesting that more , Canadians and other peoples around the world know about and use FTA , and very few people that were/are born in the USA even know about FTA and FTA is receivable here in the USA.
Generational Americans , really do not know much of anything.
Here is more information about FTA.
http://www.global-cm.net.
KU Band is the Small Dish.
C-Band is the Big Dish , more and more free channels are on the big dish.
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And there is
http://www.shawdirect.com a pay satellite service.