Above the Peak of the Roof in such a manner that reception is not blocked by the roof and house in the directions of , north east and south/south east.
Install a Winegard HD7698P antenna aimed at about 40 degree magnetic compass direction.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
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Install a Winegard HDP-269 preamp.
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For 1 Tv connected use No splitter.
For 2 Tv's connected use a , HFS-2D , 2 way splitter.
For 3 Tv's connected use a , HFS-3D , 3 way splitter.
Buy the HFS splitters at ,
http://www.solidsignal.com , or ,
http://www.hollandelectronics.com.
Here are places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.winegarddirect.com.
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Here are some Strong and Sturdy antenna mounts.
http://www.ronard.com/909911.html , use the 5 foot tripod antenna mount.
http://www.ronard.com/34424560.html , use the #4560 eave antenna mount.
http://www.ronard.com/ychim.html.
http://www.ronard.com.
Buy the ronard antenna mounts at solidsignal by typing the word ronard in the solidsignal search box or buy from ronard.
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As always , trees and tree leaves do a good job of , multipath/reflecting , absorbing , blocking , OTA=Over The Air , Digital Broadcast Tv Reception and so buildings and other obstructions including your own roof and house.
It is best install the HD7698P 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 roof and house.
The Tv/s Must Channel Scan for the Digital Broadcast Tv stations/channels , often named the 'Air Channels' or 'Antenna Channels' in the Tv Setup Menu because the Tv transmissions travel through the Air from the transmitting antenna to the receiving antenna.
Some Digital Tv's will automatic channel scan for cable tv channels.
DO NOT channel scan for cable tv channels.
Go into the Tv Setup Menu and select ' Air Channels' / 'Antenna Channels'.
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The Cable Tv system , cable service , internet service , phone service , Must Be Separate coax from the antenna system coaxes.
Yes the coaxes that are in or on the house can be used for the antenna system.
However any Cable Services Must Be on a Separate coax.
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Do Not combine the ANT751 antenna with any other antenna.
Do Not combine the HD7698P antenna with any other antenna.