I am very close to giving up. Here is the truth , Tv antennas receive the best when they have elbow room and nothing is obstructing the reception. Putting a Outside Tv Antenna on the outside of the house in a place where the tv signals must to travel through a roof of a house is defeating the reason for putting the Tv antenna on the outside of the house. Come on now , think clearly. I am doing my best to help you. You through road blocks at every little advance forward. Here is a web site that has Many different types and kinds of antenna mounts , you find the one that will be best for the situation of mounting the antenna outside in such a manner that the antenna has the clearest view of the Tv stations to the north and south.
http://www.starkelectronic.com . Here is how to aim outdoor Tv antennas and indoor Tv antennas ,
http://www.kyes.com/antenna/pointing/pointing.html , Yes you can use the ANT751 if you like.