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To check backlash, turn off tracking and point it to a terrestrial point, then use the manual controls to move the scope to the same point approaching from left and then from the opposing side while reading the encoder position on the hand controller.
The difference between the two readings is the backlash.
You should use reticule ep for this.
I wold be interested what the reading is. I checked my heq5 this way.
Regards, Jakob
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