If I do a vertical offset in Access (I assume it works the same for GPS and robot but if it doesn't then let's say I'm talking about GPS) does the off...

Many of the problems we face require both technical and professional expertise. Part of being a licensed surveyor is knowing when to apply them and in...

@jon-payne quality measured by Yelp star reviews??? In addition to the issues you pointed out with this, I would assume their are very very few Yelp r...

the surveyor that did the topo set new project control as well as tied existing monuments and control points throughout the project as they went. ...

@mightymoe Now you have my brain wondering if i could somehow link the quickbooks to save data in a geodatabase as well. I imagine it’s possible anyth...

I setup instrument on point "A", enter height, do the setup, start topo shots with rod height, then at the end I forget to take a shot to my BM. I mov...

There's not a "station setup errors" report per se in TBC. Point derivations are what you are looking for. Right click on the point, it's about halfw...

In practice, does that mean importing it into QGIS, for example, and orienting it to two or more SPC points on the ground? There are multiple metho...

Is this a vector PDF document? Nope, that's definitely a raster PDF. Vector PDFs are defined by and created from linework i.e., CAD programs. Thi...

The temperature gradient is what will get you. Curvature, balanced sights, sighting/reading errors, all of those things are systematic and may be acc...

Datasheets are in USft still. Depends on the state. When I pull a DS for WA, I get sFt, but when I pull one for OR, I get iFt. I know there are a...

It's gonna be fun, the NGS will continue to publish in USfeet,,,,,,,,soooooo guess what users will put into the black boxes. Unless something has ...

Since I don't have access to the software that controls equipment such as total stations, recreation-grade GPS, or ESRI products, I don't know if they...

I'm assuming you are the surveyor in question? To the last question: yes, the first three questions make sense. But as far as the first three questi...

But based on your poor replies to my collection of autonomous positions, there is no need to go into my procedure. Thanks, I needed a laugh after a...

I know you think these stations are awesome, but I do not. I have had this discussion before with OPUS and EVERYONE thinks OPUS provides very accurate...

Yea, them NOAA sites, I dont use them. Checked a couple months ago when I was near one and was only 1.9 feet out. To be clear, are you saying that ...

NGS and CORS Station are two differents things on two different ellipses. There may be other CORS from sources outside the NGS, but there is a sing...

Both start from an autonomous postion. It is the same thing, just a longer observation time. 15 minutes of static is the same as 2 hours of static, ju...

I am really confused by all of the varying discussions of reference ellipsoids. WGS84 is the reference ellipsoid for nearly every raw satellite’s rece...