Just did it last week
Did the full sea-trial calibration last week. It's a precise series of steps you need to take your boat and autopilot through and all of it is very well explained in the ST6001 Commissioning manual. It took us about 20 minutes, nothing complicated. Do you have this manual? It comes with the unit. You must get one if you don't, and Raymarine.com will help you there. It's an essential manual for properly setting up the autopilot. It sounds like your heading needs to be calibrated on the Autopilot but while you are at it, you may as well do all the other calibrations as well. The heading from your Autopilot is what gives the vessel icon on your E-120 chart display its correct heading as well. Ours was way off, and still is after the sea-trial calibration last week. Raymarine's verdict on that is that the ST6001 computer has gone bad and needs to go in for repair. It's going to them today.
