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Above the Peak of the Roof in such a manner that reception is not , obstructed , impeded , blocked , by the , attic , roof , building , in all directions , install a.
http://www.antennacraft.net.
AC9 antenna
aimed at about 170 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.ktes.com/antenna/pointing/pointing.html.
Use a Real and Actual magnetic compass to aim antenna , do not trust a , cell phone , tablet and etc. compass.
As always , the antenna aim and location can be further adjusted for best reception.
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A antenna system amplifier is not required for reception.
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For 1 Tv connected use No splitter.
For 2 Tv's connected use a , Holland Electronics , HFS-2D , 2 way splitter.
Buy the , HFS-2D , 2 way splitter at ,
http://www.hollandelectronics.com , or ,
http://www.amazon.com.
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Here are some and not all antenna mounts.
http://www.ronard.com/909911.html . Install a , ronard(911) , 5 foot tripod antenna mount.
http://www.ronard.com/34424560.html . Install the , ronard(4560) , eave antenna mount.
http://www.ronard.com/ychim.html . Measure around the chimney and use a , ronard(2212) or ronard(2218) or ronard(2224) .
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Home Depot has , 10 foot 6 inch length , 1 and 3/8 inch diameter , TOP RAIL , chain link fence , PIPE , that makes good antenna mast/pipe , the price is low at about 12 dollars.
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Also know this.
Trees and tree leaves , plants and plant leaves , have a Negative Effect on Broadcast Tv Reception and so do buildings and other obstructions including your own , attic , roof , building.
Some and not all Negative Effects are.
Absorbing Blocking Reception.
Multi-Path Reflecting Tv Signals Bouncing All Around.
The Best Practice for Reliable Reception is to install the AC9 antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception including your own , attic , roof , building.
At your reception location the directions of reception are All Directions.