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Originally Posted by boroda1
Thanks.
Making a map of the arc is brilliant idea. I will try to do it in two weeks, weather will be cooler a bit.
I want to push up and down (strictly vertically) the whole dish assembly, as I understand, without untightening any bolts, for all the important for me satellites:
79 (east-most), 87, 97, 121 (south), 123, 129, 148(not important, but west-most).
If the signal improves for any of them while moving up/down, I will mark it on my map with up/down arrows. Then, will analize  the results.
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Back to the topic: I saw specs for Moteck SG2100, looks like that one gives more travel in each direction: 75˚EAST ~ 75˚WEST.
But I am happy with the Satcontrol so far, even without getting eastern sats.
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You are correct about the pushing up and pulling down. Basically if you can envision this when USALS moves your dish to 79 it is aligned for 79 at this point. If you have a weak 79 we want to find it. If you have an exact opposite reaction on the other side of your arc you are not lined up on center (south sat) quite right. This is the first key to solving the arc track problem.
You only need to do this with the farthest east sat you can currently receive and the farthest west sat you can currently receive. Repeat until there is a drop in signal no matter which way you go up or down. This basically ensures you are dead center of the sat and arc for that matter. Now it is simply a matter of shaping and locating the arc. All east and west adjustments are finished. It is strictly a elevation and declination matter from here on out.
As you start getting sats farther out always use the farthest away sat from center in both directions to determine centering.