First disconnect the radio shack amplifier and put it in the trash. Then aim the ANT751 antenna at about 10 degree magnetic compass. Here is how to aim antennas ,
http://www.kyes.com/antenna/pointing/pointing.html. Then disconnect the coax from the splitter that goes to the family room. Then connect a Known To Be Good coax to the splitter and run the coax direct to the family room tv. In the future -> If <- a amplifier is required use a Channel Master CM3412 distribution amplifier.