Caveat: If the base position is way off - like maybe a hundred feet or more - there will be some additional error in the vector from that source. The ...

Not less accurate, but more prone to misuse. And poorly understood by the older people in charge and therefore viewed with suspicion.

If you setup your dc in an appropriate SP zone to collect your GPS, then set up the dc in the same appropriate SP zone to use those SP coordinates wit...

I believe that your example is an angle only resection. These TS resections include measured distances to the stations.

Once upon a time (before OPUS was a thing) I was doing a program of static GPS. There was one particular CORS which was key. One day the station data ...

The thing with resections is that they are really easy to get f'd up. A resection with 2 points is possible, of course. My rule is to always use 3 poi...

You could use any of the 3. They are all "correct" - whatever that means. The results are given as a position with a +/- error value. Those plus or mi...

First, let me say that much better results that a tenth can be achieved. Errors of maybe half or a third of that are very achievable without heroic pr...

I've never seen a dc carried that way. It does seem vulnerable. At the least I'd want it carried with the face inward.

Rookie: Hey boss, the closure is 1:80,000! A Harris: Sure, but the instrument is set up 2 inches too high. Do it over. Why can't I find good help?&nb...

There was an article in one of the magazines several years ago. Seems a granddaddy 'gator was occupying the area where a corner monument was supposed ...

If the data is correct a StarNet review & adjustment takes?ÿ just a few minutes. If it isn't, whatever time I spend to fix problems is worth it. I...

Not your fault. They should have provided a monument well. Nice job.

I started with Softdesk in 1997 and have graduated from than to LDD, and now to C3d. I've worked 6 different jobs in that time, in 3 states.?ÿ I've wo...

"Do something even it it is wrong"?  A related thought is "A good plan acted on now is better than a perfect plan an hour from now."  

I'm specifically thinking of the Trimbles.  I think that the newest Leicas do it, too, but I can't attest to that. 

You can do F2F in C3d, and that is what I recommend you start with. I also recommend doing your surfaces at the desktop. You can do these things in da...

It's been a thing on fleet vehicles for years. One of the outfits I worked for in OK?ÿ had it and misused it. A fellow I knew told me of a survey outf...