OK, I am getting confused with the terms dual and twin. I currently have a DP34. It is connected to a Dish 500 for 110/119 and a 300 for 148. I got the part about adding the DP21. When I go on Ebay, the LNBs I am looking at are DP Twins. They have two LNBs and only two connectors. Will this work for the 61.5 position. Possibly someone could point me to a picture of the proper LNB or to an ebay auction regardless of price, I just want to see what the LNB looks like. I have an extra Dish 300 with a single mount.
Thanks for the help.
..Doyle