Posted 5/28/2008 06:46 (#386139 - in reply to #385839) Subject: Re: 252 rtk for 500?
Near Intersection of I-35 & I-90 Southern Mn.
I believe the menu item is for using external corrections not an external GPS source. I believe this might be used with an external correction source where for example WAAS is not available. The acutal GPS portion would still come from the 500 itself.