Have not touched an optical level since we had the digital level. The best way to use a digital level is to establish plenty of permanent benchmarks b...

@norman-oklahoma ?ÿ there were dimensions even if these were minima and maxima distances.?ÿ

@paden-cash ?ÿ How was the surveyor to know where the underground utilities were located? Not his fault. He followed the parking layout. How deep th...

@oldpacer me I had to learn it the hard way... I also remember the lashing I got from my boss... 😉 ?ÿ ?ÿ

1. record complete BS readings. some guys just sight BS point and set to 0.0000. if you miss record your pole or instrument heights then you can corr...

@gary_g It has something to do with the position header values (X,Y,Z) in their RINEX files. Try to edit in notepad and change to 0.0 0.0 0.0 if thei...

If 2mm mattered for your work you would not be using GPS or a total station. You would need an automatic/digital level.

use a laser meter ?ÿ

@kotuku4 what's the difference in positions from different observations?

Use one of the tubes that come with your 36" plotter payer. Spray WD40 or any kitchen oil on it. A little tap on the MH rim before coming up would rem...

NTRIP via cellular for urban settings where radios have limited signals, ?ÿ

Isn't latitude, longitude and height already in a form of xyz coordinate?

?ÿ Might want to shoot this guy a message. He has a picture of the WM101.

So after reading this topic I went over to the *bay to see current prices for the Ashtech/Thales GPS receivers. Was surprised that their prices are no...

Which leads to the question - Why are you doing the survey?

Even though these units were top of the line models of their days, sometimes we just need to let them go to their resting place on our office's displa...

I was expecting that the MH points would be off between RTK positions by more than 1 cm because it's a 1.5m pole so any small movement would equate to...