[Electron]

According to the tvfool radar report your location has Many easy to receive digital Tv channels. You said that running a coax direct from the antenna to the Tv , produced good reception with many channels , and connecting the in house coax produces bad reception , so there is a problem or problems with the coax wiring of the house. Do Not connect the Tv antenna to any active cable coax. Not cable tv , Not cable internet service , Not cable phone service , if it's active cable service of any type or kind , Do Not connect the antenna to it. Yes the coax that is in or on the house can be used for delivering the antenna reception to the Tv , but the coax that is used for delivering the antenna reception , Can Not have any type or kind of active cable service connected to it. Also the Tv Must Scan for the Digital Broadcast Tv Channels , sometimes called the 'Air Channels' or the 'Antenna Channels' . Do Not scan for cable tv channels.