digging thru my bookmarks and thought some of you might not have seen this site but like it.
Lots of information presented in a neat format. I first used it to check out the focal "cloud" of an antenna by sticking very small mirrors on the parabolic surface and sliding a sheet of paper around in the lnb area I used the predictor to determine the times the sun and moon would be in focus. It works and you can see the focused light very clearly. You can see the effect of mis-alignment as you move the paper in/out. And, as the sun and moon positon change you see how the reflection point shifts.
Place satellite dish using sun or moon
Lots of information presented in a neat format. I first used it to check out the focal "cloud" of an antenna by sticking very small mirrors on the parabolic surface and sliding a sheet of paper around in the lnb area I used the predictor to determine the times the sun and moon would be in focus. It works and you can see the focused light very clearly. You can see the effect of mis-alignment as you move the paper in/out. And, as the sun and moon positon change you see how the reflection point shifts.
Place satellite dish using sun or moon