I have a DP500 with legacy lnb. I am running it like this. 119.0 legacy twin lnb 1, port 1, sw42 dish 1.... 110.0 legacy twin lnb 2, port2 sw42 dish2... is there anyway i can add 118.0 to this setup and not mess up either 110 or 119. I have added 118 into the ultra and picking up the signal but have not configed it in antenna setup.