Our minimum criteria is 15 minutes for lines up to 15 km, then 1 minute per km over that (minimum). I have been doing several thousand points a year f...

Someday, composite solutionsJoe: Thanks for the NGS insight. I look forward to seeing these enhancements. I see this is your first post (and first day...

to answer my own question...OK, so I submitted one occupation from 2011. It was assigned a PID of BBCV43.I then submitted another occupation, and told...

Thanks, Mike. As I suspected. I knew there was talk about someday combining the various solutions on a station, and about readjusting when there are n...

I don't use the VRS a whole lot (or RTK for that matter), as we don't do a lot of that type of work, although I do have a subscription. However, if I ...

Men in Black SuburbansJim: last year I was flying down to the Baltimore area. I took a northerly route to avoid Camp David. I saw Site R, very impress...

Men in Black SuburbansAround 1986 or so, back in the days before HARN and CORS, we always needed to recover a few triangulation stations to control ou...

Repeatability Is Not Precision Or AccuracyRepeatability IS precision as far as I remember.

What is so wonderful about using RINEX is that they are ASCII, and can be edited to put the correct information in them. I can think of no good excuse...

Lee: yes, I wish NGS would read the antenna type and HI from the RINEX file. Not sure why they don't. I agree the NRCAN output is "prettier". That wou...

NTRIP mountpointsAlthough I don't know of any operators that do it, but you could have different mountpoints for different datums, i.e. one for 2011, ...

I have been to all of them, and I don't consider it to be a Trimble sales pitch (although there is inevitably some of that, but not blatant). I have a...

Actually, what also should be mentioned is that the "mislevelment" (i.e. inclination of the standing axis) can be the largest source of error in astro...

The laplace correction is applied to the azimuth to the forepoint. The way I look at is that you have an astronomic azimuth to a star. You apply what ...

PDF is raster, dwg is vector. Probably won't work well if at all. I import pdf into global mapper, and then rectify. But it is still a raster image.

This sounds like the survey equipment used by the geodetic department of a small country. What type of work were you involved in?

Nobody mentioned the issue of using absolute geoid heights versus relative geoid heights. There are two ways to use a geoid model:1) use ellipsoidal h...