I actually went alone to the board at first, and they voted me down right away. I do understand the purpose of the regulation, the entire town consist...

Since going on my own in 1997, I first had a bedroom at my house. My older daughter and her "cousin" who was living with us at the time kicked me out,...

I think what he is doing is measuring the offset between the GPS antenna on top of the aircraft and the Lidar sensor inside the plane. I have done thi...

Jim: why aren't computers smarter? We can figure that out in an instant by looking at it and seeing the missing "A". That is what distinguishes us fro...

The grid does not really have an elevation per se. The grid "touches" the surface of the ellipsoid at two line of longitude. This is controlled by est...

Steve Corley, post: 325838, member: 23 wrote: We have a copy of it for our area of interest. It is organized by 15' quad sheets. I estimate that it is...

Jim Frame, post: 325809, member: 10 wrote: Any thoughts on what might be causing this? I've loaded observations files (obvious, since a vector is ack...

Hard to believe that they have not at least SCANNED the benchmark sheets that they have. I realize that entering them into a database would cost a lot...

guyinstreetwithcamera, post: 325340, member: 10149 wrote: That's quite interesting. I would have guessed the broadcast base location would be the sam...

guyinstreetwithcamera, post: 325327, member: 10149 wrote: My understanding is that in a VRS survey, a virtual base is created at your initial position...

My understanding of how the subsidence happens at the salt mine is that it is a slow creep (they call it closing), where the roof and the floor of the...

Kris Morgan, post: 324496, member: 29 wrote: This is getting ridiculous. Sometimes Firefox works at OPUS, sometimes she just spins her wheels. Somet...

In the case of the salt mine, the NGS marks in the area (and the gage station) were showing subsidence. The mineral rights owner of the salt (the stat...

I would not call that accuracy, I would call it stability. We do yearly monitoring of an area above a deep salt mine (2000' deep). They drilled in 10 ...

Shelby H. Griggs PLS, post: 323930, member: 335 wrote: Thanks again. Yes, I would imagine the cell antenna mounted like that with the light bar blocki...

I just inquired as to the price of an R8s, with a cell modem. About 22.5K. The R10 is about $3000 more. I would go with the R10.

Update: I hadn't tried to access the R10 over the office network from outside since January. I just set it up now on my test pillar, turned off the in...