If you install the ANT751antenna.
Install the ANT751 antenna above the roof in such a manner that roof and house are not , obstructing , impeding , blocking , reception in the directions of , South West , West , North West.
The Best Pratice is to install the antenna at a location that has the least amount to no amount of obstructions of any type or kind in the directions of reception.
As always , trees and tree leaves , plants and plant leaves , have Negative Effect on Broadcast Tv Reception
Absorbing , Blocking , Reception
Multi-path Reflections bouncing around
And so do buildings and other obstructions including your own roof and house
The Best Practice is to install the 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.
Aim the ANT751 antenna at about 250 degree magnetic compass direction.
Here is how to aim antennas ,
www.kyes.com/antenna/pointing/pointing.html
Use a Real and Actual magnetic compass to aim antenna.