GrafnavI purchased Grafnav about 12 years ago specifically to process airborne GPS data (i.e. trajectories). Worked great. At the time, I also tried i...

I think Trimble is shooting itself in the foot. This is going to alienate some people who may never go back. And it just encourages the Trimble basher...

We do about 2 or 3 hydro projects a year. I had previously been using a syqwest hydrobox, with frequent problems with getting the unit to connect, the...

Wow-I just tried it with data from today. This really sucks. I am not totally ready for TBC, and I don't like being forced into it. It is not a moneta...

The 1/5/1980 is week zero. This happens when the week number is corrupted or missing. I think it strange that the number of seconds since the beginnin...

I believe that NEDO makes all of the digital rods, but not positive. I have used Leica (early 90's, not recently) and Zeiss/Trimble (last 12 years). I...

I have had to do "reverse encroachment surveys", that is what it was called in the task order. Due to erosion, the reservoir had crossed over the boun...

I didn't have to do anything special other than get the right cable. The 4700 works fine with both the original Zephyr (KZ) and the Zephyr GNSS (KS).

That was the first thing I thought of (US versus International), but it didn't fit.

I will have to look into the TBC on facebook thing. Sounds interesting. I wish they still used the ratio, though. funny that you mention about power l...

One thing I did notice in a past project that I was comparing (that I also sent all the data to OPUS-RS) is that TBC was closer (slightly) to OPUS-RS ...

I agree that the rock is the highest point-not the snow cap. But, as they sort of alluded to in the article, we measure mountains as heights above "se...

I believe it was F Henry Sipes (WV LS #1) whom I met many years ago who advocated using a magnetic compass to retrace a survey that had originally bee...

I took my wife and daughter (and her friend). We turned it into a vacation, at least for them. I did go to Sea World one day, and we went out each nig...