I believe you set the motor elev same as your site elevation>check on the Sadoun site, he has a great page for setting up those Stab motors. Been thinking about ordering one for myself!
great ... thanks for the info,one other question where on the motor arm (HH100) to mount my dish ?Should it be mounted even with the bottom of the arm or in the middle of the arm or as far up the arm as I can go?