Install a Winegard HD7698P antenna aimed at about 83 degree magnetic compsass 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.
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No antenna amplifier is required for 1 Tv connected.
For 1 Tv connected use No splitter.
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For 2 or 3 Tv's connected with a 2 or 3 way splitter , use a Winegard LNA-100 'Boost' amplifier.
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Here are some places to buy antennas and etc. .
http://www.saveandreplay.com.
http://www.trentondistributors.com.
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Install the HD7698P antenna , Up High above ground , so reception has the least amount of obstructions in directions of reception.
South East , East and North East.
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For 2 Tv's connected use a 2 way splitter.