Both, I was mainly testing my fixed ku dish at 103w and my 7.5' SAMI at 58w. It is most effective on 103w ku with all of the news feeds and how the transponders are spaced. Some of the channels that were weaker it had a little better luck showing a picture. I am running the 144 software. It seems to need about 5db in order to lock but I am going to try and run a direct coax to it and retest it.