NOMAD-Does it need to be re-calibrated to Polaris every time if NOMAD is turned off?

If you do not move NOMAD after polar alignment and do not accidentally shift it when turning it off, you do not need to recalibrate to Polaris.
However, it is recommended to check the polar alignment after 20-30 minutes of use to ensure accuracy.
If you move the tripod, recalibration to Polaris is required.