BruceR
Gold Member
- Joined
- Aug 31, 2005
- Messages
- 429
- Location
- East Texas
- Tractor
- YM 2000B, JD 110, cub cadet 109, cub cadet 70, cub cadet 100
shaley said:Consumer grade GPS reads to a 3 place decimal. 6070 ft in a mile so the resolution is +-6 ft. That is resolution only and accuracy can't be better than than stated resolution and most are about +- 15 feet with the WAAS system functioning.
The real time in marking property lines is clearing the brush for line of sight. Clear your line and ask a surveyor what he would charge to shoot the line. I bet he could do it in an afternoon.
Good advice Shaley, but we use a much shorter mile in these parts
Our GPS gives sub-centimeter accuracy with post processing. Also, pine trees can really mess up your reading. Something about the needles being the same length as the radio wave. GPS is nothing more than a calculating a distance-distance-distance-etc. intersection. The more sat's you read, the better your results, Ours read up to 12 at one time. Only problem is sometimes there might only be 3-5 that are readable.
You don't have to clear the property line for the surveyor. Just get a line cleared close, less that 30 feet would be good, dosn't even have to be straight, dosn't have to be very wide, line of sight is all thats needed. Any surveyor should be able to run a "random line" traverse , zig-zagging around trees when necessary and then calc a perpendicular offset from the traverse line to the property line. The more traverse points, the more points they have to mark your line from. If they make one long shot from corner to corner then suggest that they set some POT's ( point-on-tangent ) along their traverse line for you so there are intermediate points to mark your line from. Sometimes we will prepare a sketch for the client showing the offset from our traverse line to the property line so they can save a few bucks by marking the offset themselves.
The main problem with running just one line is that the Surveyor can not tell you that is your property line unless he has already done your whole parcel. All they can tell you is that they are marking a straight line between two points for you. Whole lot of liability issues there.
Bruce
RPLS 5781