I still use VB. I have tried to transition to VB.net, but cannot convince myself that it worth the effort (a lot of others feel the same way!). I star...

With modern equipment and data collectors, resection is a very powerful tool. Many of the places I work (dams) have up to a hundred or more monumented...

Cliff: I have written my own as well, but it is nice to have something to compare it against (Adjust from Ghilani). His text Adjustment Computations S...

I have used a program by Chuck Ghilani of Penn State Wilkes Barre.download and install the adjust 6.0.2 program, then go to programs...coordinate comp...

Dave, What Do You Hold Fixed ?I have developed a work flow (with programs I wrote) to extract the relevant data from OPUS-RS extended output solutions...

I have 8.5 acres over Marcellus Shale. Unfortunately, I live in a large suburb of Pittsburgh, and I can't see them drilling near me anytime soon due t...

Triangulation: Mt Shasta to Mt Helena: 192 miles, 309 km is the longest I have ever read about. EDM: I don't remember how far, but I think it was in T...

I have always found downloading the R8 over BT to be problematic, at least the few times I tried to do it on my laptop. I always got it to work, but a...

You can look at NSRS stations around where you want to know the shift, and compute a mean shift. There is no way to compute an exact value. This is si...

I have verizon fios, it came with a router/wireless AP. That is in the basement wiring closet. It has a DHCP server enabled to assign IP addresses. I ...

An ellipsoidal distance is a distance along the surface of the ellipsoid, as if one laid a string on the surface of a ball. A mark-to-mark distance is...

That is a pretty large tunnel. We ran a traverse up a 10' diameter circular outflow tunnel to the upstream end (with the intake gates closed, of cours...

Although I didn't have one, I remember a Kern total station that the HP-41 would attach to via the HP-IL loop, I think. I also found a copy of "Survey...

Boy, Jim, it's been a long time...As I recall, I converted each two digits to a character, and then stored all the observations from one setup as a st...

What version? I installed 3.0, it would lock up. I then installed 3.01, it locks up. But 2.81 works fine. I have had a long time issue with the baseli...

Thanks, Jim (and Dave)Thanks, Jim, for that link. I bought those three just now. And thanks to Dave Ingram for calling me last night to make sure that...

My answer:Dave: the orbits are independent of the earth's rotation. The earth rotates while the orbits stay where they are. Geosynchronous orbits are ...