"never, never..., please never - Dear God in Heaven - use any measurements or coordinates that you pull from any GIS system as a basis for your survey boundary work. GIS systems and their information are from ad-hoc sources, unknown…"
I'm a bit confused by your question. First, the coordinates of a mark are not the legal or controling location. That location is in fact the mark itself, be it an original stone or post from 1840's or a modern Harrison…"
"Well, first is did you loose lock and record a point with a high RMS error.
Second, how far out of plum are you holding the rod? A careless rodman can "wave" a GPS head a couple tenths either way on a 6 or 8 foot pole.
Third, are you…"
"Well, Your post said "use it with autocad in field" ??? Also, Autocad and all its associated modules, 3D Civil in particular, are hardware power hungry. The 8 gig ram is bare bones minimum as well as the graphics. If you…"
"Nope... I would not take a Surface Pro into an outdoor environment... period. And I talking about a real-world rain, dirt, dust, humid environment, not a couple hours in the hammock and shade environment.
If you want something like a tablet…"
As someone that has been there and done exactly that, I'll say a few things...
1) Yup - heavy construction surveying work and certainly pipeline survey work IS hard and dangerous..
2) Wimpy people need not apply for this type of…"
"You need to provide more information or clarify your request better. Are you questioning why "Check Lot 7" is of a differing size? Or why they are called "Check Lot" in general? As the the payment of…"
I think you got it... At some point you have to stop "chasing the bubble" as we call it. If these two points were property corners on a current ALTA survey, both would be valid with your raw data, let alone adjusted and…"
Just putting this out here, did you adjust your optical distance for your scale factor? Since the two OPUS points are so close ( 350 feet and not 3500 feet) I'd pick the scale factor from the point with better results.
Also, if you…"
"Take it back to the shop. They may not have tightened a set screw or the like. Also, if happened suddenly it could be the result of the instrument be struck or shocked. Are you the only person that uses this instrument? Any…"
My first question is when was the last time this total station was calibrated in the shop? It is quite that your x-tilt sensor is out of alignment with your main instrument level. This would result in your x-tilt being right at its…"
I also have/had old Ashtech/Sokkia receivers from 1998, some of the first dual freq units out there. 8 or 9 years ago they also quit getting more than two or three sats. I was told by tech support that the firmware was going out…"
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