Mr. Cow. Yes, Dad is still surveying. I ventured out and started my own company about six years ago. Between consulting and later selling for Javad a...

@andy-j That compliment means a whole lot coming from you! Thank you. You've been on my mind the past few days. I know you used to live on Sanibel Isl...

@andy-nold It was so great to see you. I'm hated to hear about the difficulties you've had the past year, but I was really proud of seeing how you're ...

John, I had a great time with you at TSPS. I really enjoyed your course on Saturday and enjoyed our conversations even more. You bring a lot to the p...

@geeoddmike?ÿ That paper is worth the read. Thank you.

@geeoddmike?ÿ Thank you for sharing that. It's impressive that the error estimates are so low along with the very small transformation from 2014 to 2...

Am I understanding correctly that the translation from ITRF2014 to ITRF2020 is only -1.4mm, -0.9mm, and 1.4mm, and scales at less than a half part-per...

@jed It does have quite a blue tint to it, doesn't it? I'm pretty sure that's to block any reflection of the reflectorless laser coming back to the ob...

@williwaw I like what @rover83 said about the Trimble C5. Since you're using Trimble robotics, I'd look seriously at that option too.

If I were looking for a light-weight manual total station, it would be the Nivo. I did a review of one years ago for American Surveyor magazine. On-bo...

@i-ben-havin Yikes! ?????ÿ

@david-livingstone you're touching on the next topic I was planning to discuss: practical accuracy.?ÿ

@chris-mills Not if you accept that the antenna phase center is never actually over the point, but that the unknown offset (bias) is always the same...

I use RTK a lot. A LOT. A. LOT. And as you mentioned, the rules change fast. I see a lot of rules discussed that were relevant circa 2010 that simply ...

I agree! ?ÿ This would be a good reason to maintain consistency. These would be biases that could cancel out if the process is consistent. ?ÿ ?ÿ

I don't have a solid answer for you. We can look to the antenna calibrations and see the small millimeters of offset for signals from different direct...

If I have the situation straight, observing the control with the rover as opposed to occupying the control with the base exchanges the potential syste...

Great point, Mr. River.