Do they turn off the old L2 signal or just stop putting up new sats that send it?

A Harris, post: 455570, member: 81 wrote: Google "general cadd pro crack" There are lots of crack offerings for various software packages. I assumed...

Lookinatchya, post: 455485, member: 7988 wrote: I know a fellow surveyor who recently turned 70 and is still plugging along. I asked him why he doesn'...

Note that you should not confuse the Ortho Ht +/- value on an OPUS report with the Geoid12B uncertainty reported at the link Dave gives. They are ver...

I shouldn't be using words like "eliminate red" because my data won't actually be used in a new geoid. But it could provide checking in an area that ...

linebender, post: 455199, member: 449 wrote: he is confident in the current geoid model in our state at the 1-2 cm level If I recall your state, it i...

Some good ways have been presented to use a vertically mounted disk in a leveling run, but not much has been said to solve the GPS on Bench Marks prob...

Bill93, post: 455006, member: 87 wrote: Transform lat-lon-height coordinates to XYZ (HTDP can do that along with the other work) and do a 3-dimensiona...

Larry Scott, post: 455226, member: 8766 wrote: calumniator Collimator?

linebender, post: 455215, member: 449 wrote: geoid development also relies on gravity data obtained statewide from the air That's GRAV-D that will be...

Iƒ??ve also lamented the difficulty of finding good stability marks that arenƒ??t either next to an active rail line, surrounded by trees, or both. B...

Of course, I meant to type 1992 and not 1002 above.

Can you estimate crustal movement from the baseline points or other marks in the area?Some links:EW1861 MICHELSON . Has NAD83(1002) cords and NAD27. ...

I don't see how the following letter would get him in any trouble, as it doesn't state any opinions.Dear Every Party To This Transaction:I have observ...

Dan B. Robison, post: 454979, member: 34 wrote: Wish Y'all was here. I considered going to meet some of you, but it's an 8-hour trip and I have two f...

OtherHand, post: 455000, member: 12932 wrote: Michelson benchmark was last visited in 1995 by the NGS, so that's probably a pretty good position I do...

The tool to get NAD83 values to the same epoch is probably HTDP on the NGS Toolkit pages. I don't think HTDP deals with NAD27. You could try NADCON bu...

Seems like you have a reasonable search procedure, but a lot of readers initially thought you were talking about real measurements, which need to be d...

Jim in AZ, post: 454620, member: 249 wrote: I thought 31 June was the cutoff date for adding data I hadn't seen that. Is it on the NGS site? Seems ...