Posted 2/25/2012 22:19 (#2251757 - in reply to #2250074) Subject: Re: Trimble EZ-pilot with WM-Drain, 1 or 2 T-3's (IMD-600)
roaming
it is very hard to impossible to determine a system's heading when it is traveling slowly or completely stopped. Heading is required to figure out if you're on the line or not, and if not, what correction needs to be applied to the heading to get back on the line.