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bill93
bill93
@bill93
Member P&R, Founder
Joined: July 1, 2010 9:00 pm
Last seen: September 25, 2026 12:38 pm
Topics: 291 / Replies: 9710
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RE: Map/Grid Convergence

Posted by: ekillo Corpscon6 provides the combined grid factor when converting a point that has an elevation. And the factors are correct IF the output...

9 years ago
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RE: Near-certainty confidence limits on GNSS positions

Posted by: MathTeacher sigma would be But are the statistics of GNSS accuracy accurately modeled out to several sigma by the gaussian-normal curve? ?ÿ

9 years ago
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RE: Near-certainty confidence limits on GNSS positions

Posted by: Paul in PA ?ÿ 3 sigma, 99.7% is sufficient That doesn't seem good enough.?ÿ An out-of-lane indication for an average of 10 seconds every ho...

9 years ago
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RE: County rd fun....

W 44 N,?ÿ W 10 N, ... ??? ?ÿ Do you have a Google Earth image of that road??ÿ Sounds like a challenge to drive.

9 years ago
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RE: Bench Mark Stability

I feel much better about my data and the stability of the marks now.?ÿ I used the experimental geoid to calculate Diff17 = Ellip(GPS) - xGeoid17B - Or...

9 years ago
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RE: Basic student question

It may be a bit early in your education, but least squares analysis is something you should eventually learn, and this popular tool has a free demo (I...

9 years ago
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RE: I guess I'm the "lowballer" this time

The rule of 72 that I heard about was an easy approximate calculation of the doubling time at a given uniform growth rate per time period.?ÿ It would ...

9 years ago
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RE: The Next Big Thing

Any new system or improvement in existing systems must be built on the data we have, and some places apparently don't have much to build on.?ÿ The fir...

9 years ago
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RE: Older Deed Distances and Newer Calcs

You found monuments substantially in agreement.?ÿ Use the monuments and proportion in any missing ones.

9 years ago
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RE: For those who want to charge by the acre

Posted by: holy cow Yup. ?ÿThe research required is independent of the area involved. Actually, I'd guess that on average a smaller parcel requires MO...

9 years ago
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RE: Ok- What happened to the OPUS- shares Beta page?

Does this help? ?ÿ Joe re-registered with his name, instead of carrying over his old registration pseudonym, and doesn't have enough posts to be all...

9 years ago
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RE: Recommendations for older Total Station < $1,000?

I always thought the double lines on the 2B were too far apart.?ÿ A little closer would have made it much easier to determine when you were centered.?...

9 years ago
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RE: Weather, Antennas

What Paul said.?ÿ You don't want to try to do precise work between the times a front passes the base and the rover, or shortly thereafter.

9 years ago
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RE: Older Deed Distances and Newer Calcs

The deed or plat is the treasure map.?ÿ Original monuments are the treasure. Proportion between found and trusted monuments.?ÿ Don't let those 0.2 add...

9 years ago
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RE: If you made a list

Not sure I understand all the implications of your question, but it would seem to me that anyone should be able to make a composite plat if that was u...

9 years ago
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