The following is a Teleview recommendation for broadcast Tv reception.
Above the roof Install a ANT751 UHF/VHF antenna aimed at about 1 degree magnetic compass direction.
The ANT751 will receive at the front and back of the antenna for the reception of the digital Tv stations/channels to the , north west , north , north east , south east.
http://www.antennasdirect.com/store/...VHF-Combo.html.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.
For 1 Tv connected use no splitter and no preamp.
For 2 Tv's connected use a common simple 2 way splitter , no preamplifier.
For 3 Tv's connected use a common simple 3 way splitter , no preamplifier.
The Digital Tv stations/channels in the Green and Yellow reception zones are very strong and should be received.
As always , trees and tree leaves do a real fine job of reducing or blocking Tv reception and so do buildings and other obstructions.
It is best to install the antenna at a location that has the least amount to no amount of obstructions in the directions of reception.