I have a 2014 springdale travel trailer. I bought the Direct tv satellite system. I looked at my TV setup and it has coaxial cable into the TV but it has another coaxial thing with a very short u sh...
As Steve said that loop is there to allow your dish to hook up. The dish signal won't pass through the power injector that feeds the antenna amp. Unhook the loop and hook your receiver into one of those outputs.