Read and understand this about Real Digital Tv Channels and Virtual Digital Tv Channels .
http://forum.tvfool.com/showthread.php?t=695. . If one side of the home made UHF antenna is directed at about 300 degrees magnetic compass the antenna will be receiving of 2 directions , 319 and 82 magnetic compass that will get you most of the channels. No satellite diplexers or splitters.