Yes I agree a variable attenuator. At
http://www.solidsignal.com , the 1296F . . The transmissions are so strong that I recommend dialing them down. One of these simple antennas will work fine.
http://forum.tvfool.com/showthread.php?t=233 . . Here is how to point Tv antennas ,
http://www.kyes.com/antenna/pointing/pointing.html The transmissions are so strong that first ones are highlighted with red. And rest are over the top strong.