For antenna height the deciding Tv station is W43BO 15 FOX. At a height of 10 feet the NM is minus -12.1 , not good . At a height of 30 feet the NM is minus - 7.1 , better . At a height of 60 feet the NM is minus - 2.5 , much better. . WKPT 27 ABC stays at minus -19 NM at all 3 heights , not good but thats what there is. I am thinking that antenna heights of 50 to 60 feet are good heights for reception. Ok I recommend a Winegard HD 7084P with a Winegard AP8275 preamp pointed at 230 magnetic compass and a AntennasDirect 91 XG with a Winegard AP4800 preamp pointed at 141 magnetic compass. This is 2 separate antenna systems , the 2 separate antenna systems will not be connected together at the same time on to one coax. There will be a Remote Control A/B antenna switch at each Tv location , so as to switch antenna A and B to the Tv. .. Here are places to buy antennas and etc..
http://www.3starinc.com ,
http://www.solidsignal.com ,
http://www.amazon.com ,
http://www.starkelectronic.com . . With this system there is signal strength for 3 Tv's.