I had an old 18" DirecTV dish still in the box laying around, so I decided to give it a try on Nimiq 4 since I was pegging the meter on a 6' dish. First I tried it on 91, I got a lock on most transponders, but there were 3 or 4 that I could not bring in. On Nimiq 4 though, I am getting 60-80%...