I'm not sure 0.023 feet would be a datum difference.

How did you come up with the 0.023'??ÿ Also, why would you suspect it is not the recorded BM.?ÿ I understand that it looks like the curb has been move...

@rover83?ÿ Yeah, that is what it sounds like.?ÿ What I cannot believe is that AutoDesk has known about this for almost a decade and not either A, fix...

?ÿ I've been producing products exclusively in SPCs (at ground) for 15+ years IF THEY ARE REDUCED TO GROUND MEASUREMENTS THEN THEY ARE NOT STATE PL...

Internal accuracy of your control points is what matters most when it comes to construction. ......... Its important to shoot all targets from one s...

Besides precision of the instrument, you have less chance for human induced reading blunders.?ÿ Be they cause by eye fatigue or just plain miss readin...

Tom, You activated 'selection cycling' in AutoCAD.?ÿ When activated it lets you choose which item is selected when multiple features are present.?ÿ I...

The distance from the radio to the base should not cause a GNSS precision issue (other than a little latency). I would guess that the biggest problem ...

Why are you worried about the battery getting wet??ÿ As for the connections, I recommend anderson powerpoles.?ÿ They offer a nice secure weather tight...

What instrument are you running.?ÿ I'm not sure you can substitute any flavor of Lithium battery for a NiMH on board.?ÿ If you are only getting an hou...

I have used one of the scribs @BStrand suggested for decades.?ÿ They are great for something that does not have to be around for long.?ÿ Depending on ...

For photogrammetry purposes, nadir photos need to be pretty close to vertical.?ÿ Without my references material handy I cannot give you a proper spec ...

My great grandfather had a construction and house moving business in Edmonton back in the mid 50's.?ÿ Apparently someone took down the wrong address f...

Sometimes a bounced check is not because of insufficient funds.?ÿ I recently had a great experience with my bank of 24 years.?ÿ It seems that when I w...

The choice of UTM zones will not affect the accuracy of your GNSS per say, just the amplitude of the resulting scale factor and convergence angle at a...