The splitter show in the diagram, does work. With DirecTV satellite systems. In fact, it is the only way to get the signal to multiple receivers / TVs. The thing is, unlike many TV type splitters, the one shown is the correct frequency AND DC pass through.
Tina + Dutch and Bell, Bobo, Harley, Buddy (the dogs)
2011 F350 Lariat 4x4 DRW SuperCrew 6.7L (B&W setup w/Air Lift 5000 Ultimate)
2014 Columbus 365RL (Airflex and Voyager package)
Nights Camped 2014 - 154
, 2015 - 32, 2016 - 4