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Luthier1960! I've never used the GeosatPro 1.2 (using a 90cm Fortec Star with Stab HH100) so I can't comment on it's setup but when you think you have the elevation sorted out you should be able to use 87W for aligning your dish. Aim the whole motor assembly as close to true south as you can then tighten up the motor on the pole so you can
just rotate it - you don't want a lot of slack. Make a mark on the pole/motor so you can return to this spot. Verify that your location is entered correctly in your receiver and use USALS to send the motor to 87W. Set your receiver to an active transponder on 87W and
slowly rotate the whole motor assembly on the pole a few degrees to the east, then the west (don't use USALS as you want to keep the motor 'aimed' at 87W). Make sure you give the receiver enough time to get a lock as it can take several seconds depending on the received signal. If you don't get a lock in either direction then start back at your mark on the pole, raise or lower your motor a degree and repeat. When you get a lock do a scan and see what sat you are on. If you are not on 87W the sat your are on will give you a clue as to the direction you need to go and whether you need to raise/lower your dish. When you do hit 87W and fine tune then your motor should be tracking the arc. Using USALS go to other sats and scan to be sure. If not, do more fine tuning. If so, tighten the motor on the pole.