I like the fractal antenna on the cork board-modern art. Each digital channel can transmit sub channels of what is commonly known as 'Tv channels' , usulay 1 to 4. Audio only channels can also be transmitted and also data. Modern Tv's are really computers , that display what is commonly known as Tv channels. . The reason the 'Tv channels' can be received with the matching transformer only is because the transmission are VERY Strong. Here is inflammation about aiming Tv antennas , yours is aimed like a flat panel UHF antenna , one of the flat sides directed at the Tv station ,
http://www.kyes.com/antenna/pointing/pointing.html , the circuit boards and metal objects that are placed in between the metal elements of the antenna interfer with the fractal tuning of the antenna. Here is information about Real Digital Tv Channels , Virtual Digital Tv Channels , Analog Tv Channels ,
http://forum.tvfool.com/showthread.php?t=695