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Mark Mayer
Mark Mayer
@mark-mayer
Member
Joined: July 21, 2010 9:32 am
Last seen: August 3, 2025 1:00 pm
Topics: 54 / Replies: 3317
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RE: Deed talk.

Heresy, indeed. Probably you mean hearsay?

7 years ago
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RE: Deed talk.

Arkansas' race notice statute reads a lot like Oregon's: 14-15-404. Effect of recording instruments affecting title to property. (b)?ÿNo deed, bond, o...

7 years ago
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RE: Not enough

One of you is working with an autonomously positioned base.

7 years ago
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RE: Okies and thier local city staff

I had a part in that project. A large part of the design topo was mine. I had previously had a piece of the very similar Portland Streetcar. The engin...

7 years ago
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RE: AUSPOS & CCRS

For the moment, OPUS is still up. We will see what happens Monday morning.

7 years ago
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RE: survce question - data collection

I do not use SurvCE or Carlson. I use Survey Pro to collect and Star*Net to reduce my data.?ÿ If I do not have a complete set of BD/FD/FR/BR data the ...

7 years ago
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RE: Missed total station calibration date - a problem or not?

I really doubt that you have anything to worry about. I'll wager that 99% of users do not have their instruments serviced, ever, unless they stop work...

7 years ago
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RE: need advice of topic for research thesis

My understanding is that it is possible to do photogrammetry without ground control points. It is done by getting the camera's position at the time ea...

7 years ago
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RE: Danger Will Robinson

In the Oregon case of Satchell v. Dunsmoor a surveyor was asked (c.1936) to determine a section line so fences could be built. He gave the property ow...

7 years ago
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RE: Wood Tripod Dilemma

You ask advise - you get 7 guys recommending the Leica, 3 or 4 the Trimax, 2 the Nedo. And not a single person recommending the Sokkia. Yet it sounds ...

7 years ago
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RE: Wood Tripod Dilemma

Wood tripods jam up when they absorb moisture and swell. Bring your SOKKIA tripods indoors for a week or so and I think you will find they loosen up.?...

7 years ago
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RE: Chi-Square Exceeding Upper bounds Starnet

Norman has gone home for the day so I'll answer for him.... Increasing the error factor on the GPS vectors reduces their weighting in the adjustment. ...

7 years ago
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RE: Curious question for ya

The nice thing about the GDF322 tribrach over even the less expensive models Leica sells is that once adjusted, they stay adjusted. You've scored. I'm...

8 years ago
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RE: Field Crew Billing

I have seen these rates in the Portland area. My own are about 10% lower.?ÿ But things have been rocket hot for the last couple of years. Those rates ...

8 years ago
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RE: Where are Trimble Instruments made?

Really old dogs like me can recall a time when Trimble was strictly a GPS company. They bought out Spectra Precision (not todays SP, another entity) f...

8 years ago
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RE: What am I looking at

Pathfinder is their line of GIS data collection units.

8 years ago
Topic
Replies: 2
Views: 311
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RE: Tripod for scanning upside down?

There is an article about just this in the November xyHt magazine.

8 years ago
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RE: More incentives to work from home

I spent a year and a half in Tulsa a few years back (1/13 to 7/14). I wonder if the offer is retroactive.?ÿ It's not an awful place, but it really cou...

8 years ago
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