Tried research what could find on Garmin site but w/ my slow dialup was too painful to delve deeply.
Best I could see appears that WAAS of roughly 10-ft (3-m) is best could hope for. This is, I presume, all any moderate/low-cost device has?
Need/desire is to layout acreages for ag purposes--haying, etc. Need accuracy to roughly 0.1A out of typical 80 to 160A patches. Note that
1A is 16.5-ft (1 rod) by 1/2-mile for thinking purposes. Hence, if 10-ft is best I can find a corner at one end, that's 2/3-rds an acre roughly so really need about 1-ft. One advantage is it's flat, no trees, no other obstructions.Anybody have any detailed knowledge of abilities of units and how well suited would be to start in a corner of a field and mark a line at other end 1/2-mile away parallel to hit (say) 80A out of a quarter-section (160A). I can locate most boundaries reasonably well by existing roads, old fence rows that are visible if know what looking for, etc., altho there are a couple of places that have now been in grass for nearly 30 years that don't have any visible landmarks any longer between quarters that were all farmed together and now can't find specific location of half-mile lines as no corner posts or other landmarks remain. Field technician from FSA (Farm Service Agency) came out w/ their high-priced system last year and marked one of these corners for me; he brought his Jeep Wagoneer. We got out to place the stake and probably less than
20-ft from it turned around and couldn't find it in the grass... :) Not much of it is that tall, but that quarter was last year; we made over 400 large round bales off a little under 80A.Anyway, any input appreciated...
The ag manufacturer's tractor-mount systems are 6" or so, but they're also multi-k $$ and this function doesn't need the ancillary crop software, etc., just waypoints...