I have been successfully running a pair Vip211z boxes with the LNB shown in the picture and would now like to add a 3rd Vip211z into the mix. Eastern Arc if it matters at all. I can’t seem to figure out for certain what I need to be able to do this. As best I can tell, I may need a Dpp44 switch and a power inserter for it? Any guidance or direction would be appreciated before i go out and waste money on the wrong components. Thanks in advance for any assistance.