With a good shot with the antenna with out to much trees obstructions , Many Tv stations/channels will be received.
Install a Winegard HD7698P antenna above the roof , aim the HD7698P antenna at about 0 degree magnetic compass (north).
-->How many Tv's will be connected??<--
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
Having the antenna reception above the trees or mounted installed in such a way that the antenna looks through a gap in the trees or the antenna is located at a place where there are less or no trees is the best for reception.
Here are some antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/34424560.html ,
http://www.ronard.com/Tripods%200703/4712.html ,
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.
http://www.palcoelectronics.com/pe300.aspx
Here are some places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.winegarddirect.com ,
http://www.amazon.com.