Sure they are CI for what recreationists are using them for! However, they are not the proper instrument to be used for establishing a line right down to a foot or less like a survey grade instrument. That's exactly why I stated what I did when a member said he uses his regular hand-held GPS to establish a line for his logging operation.

Wrong, loggers and Game & fish officials use it daily Topgun.

I can get within -3 feet not 12 meters, thats plenty for property lines.

When I was doing some telco engineering years ago before I retired in 2002 we hired a crew to document pole line locations for legal easement reasons. Their GPS units were in a back pack and they had an external antennae that stood about 3' high off that pack and the units were really accurate. I think what Gjersy is saying is that GPS hand held technology is the same that either a hunter or a warden would use. That GPS location would not be a survey marker which is normally most accurate utilizing all technologies by a licensed land surveyor though which I think TG is alluding to. If it came down in court to a handheld GPS and a legally surveyed property marker there is no doubt the survey would win.

If you want to take it to the next level, a Glonass trimble unit with glanass capabilities witch is a GPS unit, will get within .5 inches. I have found old surveys off 20 feet?! There is changes in rods, eye level, human error. I'll stick with and trust my hand held GPS.

Funny how you seem to continue to argue with petty comments on a thread where you made the OP with completely incorrect statements that I came on and corrected, including advising you that WY G&F GWs are now using them! However, the instruments we are talking about should not be used by anyone to get down to the nitty gritty of determining exactly where a property line or corner is located. That includes the GWs who are not using them for that purpose, but are actually just using them to get an approximation as to whether a person is well onto private property illegally and not just a few feet over a boundary line! As I stated before, using a hand held GPS like it's a survey grade instrument is only going to get a person into trouble sooner or later. Even if your GPS is accurate to within 3' all day every day, and it would have to be an awfully good one to be that accurate, look at any company related material that makes them and you will read disclaimers that the companies post regarding accuracy. The inaccuracy distance of the hand held units needs to be considered whether you are out hunting or cutting trees for a living is all I'm saying! The GPS units along with the landowner chips or downloads for them are probably the best thing to have come on the market over the last 20 years that I can think of for hunters along with the Thermacell units for skeeter control, LOL!

He topgun a trimble unit with glonass capabilities, will get within .5 inches. I have found old surveys off 20 feet?! There is changes in rods, eye level, human error. I'll stick with and trust my hand held GPS.

We are not talking about a more expensive like you mention. We are talking about common GPS unit that cost anywhere from $100 to several hundred along with a chip or download that may be based on an out of date plat map. You are certainly being argumentative when there is no reason to be on this subject because you certainly must realize that what I have stated is accurate. I also wouldn't argue or disagree with you about old surveys being off 20' since those are ones that were done through the use of equipment that has been outdated for decades and FYI I've found the same thing during travels out in Wyoming. Have a good weekend, as I think we've beaten this one to death!

Topgun have a good weekend, however a modern GPS is plenty accurate for corner crossing.

Tell that to the Judge when you get a ticket for using one when there is not at least a surveyed, marked corner! You just won't let it go will you, LOL?!