I have two dishes kinda far away from each other with dish 500 targeting 110 and 119 and another Voom dish aiming on 61.5. There is one SW21 for 110 and 119 attached to the dish 500 and then one coax cable runs from there to my 811 receiver. Can I just add another SW21 to that cable near receiver and then attach Voom's coax to second input so that I can get signal from all 3 satellite locations? That would save me a lot of time needed for moving one of the two dishes closer to another one.