As is True with ALL indoor Tv antennas , DO NOT use a amplified indoor antenna. If one of these NON Amplified indoor antennas does not receive the channels you will like to watch then WILL Need to use a outdoor Tv antenna. Is the building a , house , condo , apt. or _____________. Is there a window or patio that is in the direction of about 79 degree magnetic compass ?? Here is information about indoor Tv antennas.
http://forum.tvfool.com/showthread.php?t=233 . Read and understand this about Real Digital Tv Channels and Virtual Digital Tv Channels and Analog Tv Channels.
forum.tvfool.com/showthread.php?t=695 Here is how to aim Tv antennas ,
http://www.kyes.com/antenna/pointing/pointing.html