I didn't know you needed a specific dish for the 722K, sorry for my ignorance. Would this Diplexer work and if so I would need two, right? Amazon.com: RCA D920 Diplexer: Sports & Outdoors@@AMEPARAM@@http://ecx.images-amazon.com/images/I/11z6BhjYMUL.@@AMEPARAM@@11z6BhjYMUL
Now I understand that...