Install a Winegard HD7698P antenna with a Winegard HDP-269 preamp aimed at about 30 degree magnetic compass. Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html. Mount the antenna and preamp at about 40 feet high , so as to get reliable reception of , WKMA-TV 42 PBS , WEHT 7 ABC , WFIE-DT 46 NBC and This Tv , WEVV-DT 45 CBS and FOX and MyNetwork , WNIN-DT 9 PBS. . Here are some Strong and Sturdy antenna mounts ,
http://www.ronard.com/909911.html ,
http://www.ronard.com/Tripods%200703/4712.html ,
http://www.ronard.com/34424560.html