I've had a Terk 5x8 multiswitch for a long time that I tried to install once and didn't get it to work cause I didn't know you had to have 4 connections from the 3 LNB dish connected for it to work... Now that I have 3 HD boxes there wasn't enough bandwidth so I had to get it set up and found out about my shortcomings of the previous try, only problem is there are only 3 cables coming into the house from my dish. Everything seems to be working fine but I can't help but wonder what I'm missing! Can someone explain this to me? I have 2x 18v connections and 1x the 13v connection.