Grid factor and scale factor are often used interchangeably in survey software. Regarding geodesic at 1500 ft, I can see what he's saying. Applying a ...

LR,Email me. I know the people who can make that happen. [email protected]

Big Jim and the Waitress (another long, but true story)sounds like waitresses don't have much resistance to surveyors, unc.My wife was a waitress when...

great story, unc!

thank you

Thanks for that. I'd always thought of GRS80 as the ellipsoid and NAD83 as the reference frame. I suppose this wrong thinking is supported by the fact...

> I'd like to be able to use RTK, and set it in a marginal location, and let her cook, while I go to lunch, and come back later, and find 6 fixed g...

> Okay, that's in the running for the Non Sequitur Prize of the Day, right up there with "Why is a duck?"Austin sun getting to you, Kent?The point ...

Good question Dave, and great answers Dennis and Ben. Much appreciated.It explains the confusion very well that some of these terms have been used int...

> So, what you're saying is that you really don't have any confidence in your RTK-generated positions until you've checked them by some other means...

> One thing I don't understand, and maybe someone has done it, why not have the DC import local CORS data over wireless and then internally process...

Kris,Do you suppose Kent stores all of his EDM data and post processes it in the office or do you suppose he has one of those real time EDMs?

If you're going to fiddle with all of the "custom" stuff,> Don't forget the oblique stereographic, the oblique conic, and the oblique Mercator. De...

I apologize for not having the source for this David. I had the same thought you did about this when I wrote the article. After solving this for mysel...

I think you'll see diminishing returns on any additional GPS pairs. You've got two pairs at each end and a point in the middle. Adjust with a pair on ...

Sometimes you've got to hit the books and study before you even know what the right questions to ask are. I think that's where you are. No shame in it...

Error in Original Data Set...YESSince his final output will be the standard deviation expressed in seconds, it seemed obvious that the fields could be...

Error in Original Data Set...YESObviously.

Error in Original Data Set...YESThe whole number might not matter. It's possible you could truncate everything to the seconds or possibly convert ever...

I'm with mkennedy. the underlying transformation (grid files) may differ from one system to the other. If you use the same one every time, probably no...