I found the compass useful for initial setting up. I found that with the dish in the case I needed the bubble to be set on 30. I also found that the astra setting on the compass was slightly out, best result being slightly more to the right.
I know this sounds a bit non technical but it gave me a 77% quality outside and 64% inside through the plastic window.
I know this sounds a bit non technical but it gave me a 77% quality outside and 64% inside through the plastic window.