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john-nolton
@john-nolton
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Joined: July 2, 2010 6:08 pm
Topics: 27 / Replies: 536
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Replies: 10
Views: 6
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RE: Atmospheric corrections

All Total Stations that I used (before retirement) did not have the ability to monitor T&P.We always took Temperature at instrument height and had...

8 years ago
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RE: Gyro tunnel surveying

JOHN HAMILTON the misspelling of my last name was no big deal. I got a laugh out of it----- thanks for your reply.JOHN NOLTON

8 years ago
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RE: Gyro tunnel surveying

Kelly Johnson, you are very welcome for the help. If you need more after you search more just ask.Can you tell me about the job? I might be able to gi...

8 years ago
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RE: Gyro tunnel surveying

John Hamilton don't be so fast on the keyboard on the computer. Its NOLTON not Bolton. JOHN NOLTON 🙂

8 years ago
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RE: Gyro tunnel surveying

Gene Kooper ask the question; gyrotheodolite determines Astronomic north rather than geodetic north.YES Gene you are correct it gives Astronomic Azim...

8 years ago
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RE: Gyro tunnel surveying

Kelly JohnsonThere is a lot of literature that can be found on the Internet and in books and journals on the gyrotheodolite.To start with you can find...

8 years ago
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RE: Settlement Monitoring Literature

Several of the above posters have got the book "Precision Surveying/ The Principles and Geomatics Practice by Dr. Ogundare.As you work through the b...

8 years ago
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RE: Proper centering tool -- math or beer

MathTeacher, after reading your post I could only think that they do not have a standard way to compute Geographic Centers.Now this could be a county ...

8 years ago
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RE: Research pdf?

It looks like you have an error in the title!In 1977 Dr. Adam Chrzanowski had "Design and error analysis of surveying projects". This was his lecture ...

8 years ago
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RE: Instrumentation Survey SOP; C&R + Humidity Corrections

John Hamilton is the Trimble S6 you have a 1 second or 3 second inst.? How much did it cost?JOHN NOLTONPS how much does this S9 cost? (could not find...

8 years ago
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RE: Instrumentation Survey SOP; C&R + Humidity Corrections

mcaanda, glad you are OK now. I have been sick for 7 days with some type of virus and had trouble posting the above post. (1st day out, today).Remembe...

8 years ago
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RE: Instrumentation Survey SOP; C&R + Humidity Corrections

Mike Marks, mcaanda made NO reference to an automated system of monitoring and I have left out all kinds of names because as much as mcaanda is readi...

8 years ago
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RE: Instrumentation Survey SOP; C&R + Humidity Corrections

mcaandaYour 1/300,000 or better........ Am I to infer you mean Closure in position? IF so then you are looking at doing 1st Order Work.If Yes then you...

8 years ago
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RE: Instrumentation Survey SOP; C&R + Humidity Corrections

mcaanda1. What order of Survey ( 1st,2nd,3rd) are you trying to do/write SOP's for ? (this would make a big difference in the rest of our conversatio...

8 years ago
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RE: Brown, Boundary Control and Legal Principles (1st edition)

Dave Karoly, post: 405979, member: 94 wrote: I'm reading it, interesting. Attorney Landgraf wrote Chapter 2 which is a lot more readable than say CJS ...

8 years ago
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RE: Who wants to go and compare GPS?

GPS Receiver TestIf one wants to look at some test (newer that FGCS) just type in the above (GPS Receiver Test) and you should get many hits.Look for ...

8 years ago
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RE: Who wants to go and compare GPS?

Gene Kooper, thanks for the correction. All is OK and thank you for that too.JOHN NOLTON

8 years ago
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RE: Who wants to go and compare GPS?

Nate in the old days FGCS (Federal Geodetic Control Subcommittee) did test on GPS Receivers. This was done using base-line points and points that were...

8 years ago
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RE: Leveling Tripod

JIM FRAME, two more questions for you.1. How much does the DNA03 weigh ?2. How much does the NEDO tripod weigh ?I have 4 fixed leg tripods. Two Wild 4...

8 years ago
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