If you are pulse guiding it will throw that message if you try to calibrate more than 20 degrees from the equator. It won’t necessarily keep it from calibrating. It is best to calibrate close to the equator, any calibration errors in how the RA and Dec rates compare may be magnified otherwise.
The upshot is though if you are using pulse guiding, you don’t need to re calibrate for each new target in a night (or sometimes for months, depending on your setup) You do need to determine though if your mount requires the option to reverse the dec after a flip checked or cleared. If you set that one wrong the guiding will run away in the wrong direction in Dec as soon as you dip over to pier east.
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