Posted 4/17/2018 07:28 (#6714883 - in reply to #6712637) Subject: RE: Trimble Roll Calibration
A couple other things that I thought of that have not been mentioned. Make sure your tire psi is adjusted before calibration, especially on your fixed axle. Don't make any adjustments without checking or recalibrating the nav.
Find a level spot in the yard, preferably a concrete slab and park on it and note the degree roll in the autopilot diagnostics page. Check that occasionally to see if it reads something different, something's wrong and performance will vary. I also use that for setting up new systems as I can get it zeroed since our pad is level.