PEM

NOTE: The PEM controls will be hidden if you have a Mach 2/GTOCP5 or an encoder mount with absolute encoders.

PEM is the Astro-Physics implementation of periodic error correction. PEM status should be reflected in this group box's title if your mount has a GTOCP4 controller or GTOCP3 controller with Rev S or later firmware then

Enable: Enables the mount's periodic error correction facility.

Disable: Disables the mount's periodic error correction facility.

Record: Starts a PEM record, which will last the duration of one worm period. During that time