So @warrenward what was the right answer for your instrument?

Set means that the surveyor placed or at least promised to place the iron at the corner. If not set, it may have been found by this survey in retracin...

I think OPUS decimates to 30 seconds, so faster is just wasting memory if that is all you will do with the data. But as has been said, that still isn'...

+75 ppm for my old machine, but that may depend a little on the laser wavelength.

And the guy who is always complaining about too many cheap surveyors wants to make it easier to get into the business?

@tom-wuesthoff What information are you working from? An old survey, a deed description, the tax map? If your source does not explicitly describe the ...

Isn't that one of the links in my original post?

There, their, they're ...

It isn't hard. You collect at least 4 hours of static L1+L2 GPS data (other constellations ignored) on the point. Carefully record the ARP height. Tak...

I question whether a nail meets the intention NGS had for OPUS SHARE. Definitely could be useful for a more substantial monument. Now, how do we get ...

I've noticed a couple places where our city crews use square rods for their references on street and storm drain reconstruction. At least one bore no ...

My problem with the maximum angle of incidence was that I was ignoring coated prisms and the possibility of higher index of refraction. The PDF at th...

I might have guessed the beginning of the ROW to be centered on your line 3-2, and the description starting point 4 correspondingly earlier on the cir...

It can't be drawn from the limited information provided, since we don't know where on the circle of the cul-de-sac we start or which direction to go. ...

It doesn't say 0.01 accuracy.