I don't wish to answer for John, but I believe that "fixweek" works on Trimble .DAT files, not RINEX files. As Larry indicated above, IF you can get t...

I hear ya Gene, and totally understand where you're coming from (I play it a little differently even when using OPUS Projects, but the results are&nbs...

Agreed! My "point" (as it were), was simply that the end user is (or should be) responsible for at least a minimal amount of quality control using th...

Good example of why I NEVER let OPUS pick the CORS: Several of the other CORS are little iffy as well. Just my 2-bits Loyal ?ÿ

Well, the National Archives has "ALL" of the ICC (Interstate Commerce Commission) data (including Valuation Maps), but none of them (as far as I know)...

I just noticed that this "thread" started back in 2011, so here are some links to Shawn Billing's excellent articles from 2013: Ground verses Grid Par...

More or less...

Back in the day, I had 3 State Licenses, and a US Mineral Survey appointment. I let the USMS go in the late 80s, one of the state tickets (rarely used...

"Don't take a risk that you don't know the outcome before jumping in." Good advise, but impossible in reality! 4 ex-wives later...

"SHOW ME THE MONEY!"

Charles, Ya got the year right, that's a lot better than I do half the time. Loyal

I had one of those BRIEFLY (1 year contract as I recall) over 30 years ago, I couldn't get rid of it fast enough (didn't make sense then, and sure doe...

Nate, "A modern gps, robot, data analysis whatever, should not take the place of due diligence." Right on! Knowing which buttons to push is NOT the sa...