Your reception situation is interesting because of the weak Tv stations in all directions. Your best reception is West , West South. I recommend a Winegard HD7697P antenna with a Antennas Direct CPA-19 preamp aimed at 265 degree magnetic compass. Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html . Also read and understand about , REAL Digital Broadcast Tv Channels , Virtual Digital Broadcast Tv Channels , Analog Broadcast Tv Channels ,
http://forum.tvfool.com/showthread.php?t=695 . Here are places to buy antennas and etc. ,
http://www.solidsignal.com ,
http://www.starkelectronic.com ,
http://www.amazon.com ,
http://www.3starinc.com. Here are some antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/34424560.html ,
http://www.ronard.com/ychim.html