they work good if you don't have a 2x1 switch around. I use one for the following
I have a 4x1 switch running to my Kusat 2600.
Port 1 is for G10
Port 2 is for the audio for ExpressVu
Both of these lines are in the same spot under my deck. But I added a DBS LNB on the motorized….so instead of running 2 50’ lines, I ran 2 6’ lines to this and ran one line to port 3 of the 4x1 switch
So its
Port 3 0k for motorized (feed)
Port 3 22k for DBS
It also will work for the old DirecTV setups and for SC setups