If the north/north/west Tv stations are not received well enough with the one antenna aimed at the west/south/west Tv stations.
Then a Channel Surfing Friendly Way to do it at your location is install a second HD7696P antenna and AP8700 preamp aimed at the north/north/west Tv stations.
This second antenna system Will Not be connected to the other antenna system.
The first antenna system and the second antenna system are SEPARATE Systems.
The Separate coaxes will go to the location/s of the Tv/s and be connected to a Remote Control A/B antenna coax switch ,
http://www.radioshack.com, #15-1968 or
http://www.mcmelectronics.com , # 32-4425].
Pressing the button on the hand held remote control to change antennas Is Channel Surfing Friendly.