Using this website https://www.satellite-calculations.com/ ... erence.php you can calculate when the sun will be behind Eshail 2 at your QTH – and it's happening right now.
This happens for a few days every October and February/March for the UK and as long as it is sunny, you will be able to see where to place your dish by seeing where there is direct sunlight and you can check that the neighbour's pesky trees have not grown up and blocked your path!
You will also find the signals on the satellite will drop significantly for a few minutes whilst your LNB is blinded by sun noise.
Noel - G8GTZ
I did the experiment with a small reflecting dish (my portable 6 cm station), watch the result in the video: https://www.youtube.com/watch?v=y7OEYgJ5DH8
Experience with large white dishes?
So I planted the dish such that it had a clear view of the satellite - or so I thought, but the beacon signal was only 6dB MER not 9.5dB as before.
This was despite there being a clear view of the satellite albeit between two trees with a gap of about 20 feet between the foliage so providing line of sight.
No matter what I did I couldn't find the missing 3.5dB until I trimmed the branches back by about another 3 feet then bingo - all is good again.
So the moral is even if you can see the satellite, trees etc close to the bore sight could be a problem.