Trick question. I'm with Moe.

JaRo, post: 412296, member: 292 wrote: All of my Trimble stuff still uses the relative height. If by "stuff" means their software, that is not releva...

linebender, post: 412177, member: 449 wrote: You could process a rinex file for Marion for the day of your observations and see what height it was tha...

gschrock, post: 412094, member: 556 wrote: I like this one. I resemble that! I've spent a fair amount of time lately reading, almost napping, and wat...

John Hamilton, post: 412162, member: 640 wrote: they reprocessed all of the CORS several times with newer antenna models, etc So it is important that...

Interesting. PID?

MightyMoe, post: 412114, member: 700 wrote: Your answer might be just fine for OPUS but not for a NAVD88 elevation Since the OPUS report and the publ...

I have a theory: I'm using too long an antenna cable and the cable's differential delay between L1 and L2 is adding error. I think it is usually assu...

Scott Ellis, post: 412101, member: 7154 wrote: I thought you just measure to the antenna and you say if you had the ground plane on the antenna or not...

GISJoel_GetItSurveyed, post: 412033, member: 11867 wrote: the antenna list that OPUS provides and verify that antenna matches with mine I'm always sp...

3.2 hrs, 5.1 hrs, 5.1 hrs, and 4.5 hrs, with whatever CORS are selected by OPUS-S so not always the same ones. And of course I have no way to know wh...

This is a Trimble cowbell battery unit, and I've checked the OSM voltage - it settles out at 13.65 which is generally what I find recommended so don't...

John Hamilton, post: 411671, member: 640 wrote: Some areas the point falls right on, others it could be a meter or more. Does GE have a symbol that i...

You can probably locate Mr. Denny from the license list and/or the Surveyors Historical Society. I know he was involved with their annual event a cou...

You might try Rich Leu and the Surveyors Historical Society to see if you can find some interest.

A Harris, post: 411468, member: 81 wrote: BTW, your link does not show an actual website on my screen, kinda suspicious. Somehow he got his whole pos...

billvhill, post: 411445, member: 8398 wrote: why negative rotated right and positive rotated left. That's the way mathematics usually describes angle...

Jweiss, post: 411437, member: 11740 wrote: It is my opinion that the intent of the rule was to place surveys on the SPCS. If that's the case, why did...