Your location has receivable Tv transmissions in all 3 Tv bands.
VHF low band channels 2 thru 6.
VHF high band channels 7 thru 13.
UHF band channels 14 thru 69.
Above the roof install a Winegard HD7084P antenna aimed at about 67 degree magnetic compass.
The HD7084P is designed to receives all 3 Tv bands.
The U4000 Is Not designed to receive all 3 tv bands.
Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html.