We have dropped DirectTv after 30 years of service and I am installing Dish in our RV. I purchased a conversion kit from Wineguard for the roof mounted sat dish. Now I have to install two 211z's in our coach. The DirectTv receivers had three threaded cable hookups on each one and the 211z has one HDMI out put coming out of the back. I know that it has to go to the splitter box but I believe it also has the threaded couplings not an HDMI input. Is there a way to make these receivers work in our unit?