In CA most of this stuff has been adjudicated. The rules are complicated, but the law is mostly settled.

I get the linear-calibration concern, that's why calibrations always make me nervous. But the agency (Caltrans) has specified that their control valu...

Thanks for that, I'll pass it along and see what he's got!

I did get a v6.20 jxl from my colleague, and it came into my copy of TBC without issue. Unfortunately, it only contains RTK vectors and coordinates. ...

I don't know what version my copy of TBC can read, but rover83 thinks that 6.20 will work. Shall we give it a try?

You realize that will never happen if you include interest?I ran the numbers in a spreadsheet that accounts for the accrued and compounded interest, a...

Thanks for the reminder, Scott! There's a plan afoot to reobserve the Yolo project, so I just downloaded all the sheets for Yolo, Colusa, Sacramento ...

I've been using an Epson T3470 D-size plotter for 4 years now. after finding that I could no longer buy ink for my HP 450C. At the time I wasn't impr...

the Leica GS18's I mostly use (and everyone other one I looked back that I've used last decade) are mm differences only. It depends on the azimuth ...

I was skeptical about claims that orientation of my Javad Triumph-LS mattered, but then a few years ago I did some calcs using the antcal file. As I ...

It's been 30 years since I did any serious construction staking, but in the 15 or so years prior to that -- through a bunch of large projects, both re...