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Mark Mayer
Mark Mayer
@mark-mayer
Member
Joined: July 21, 2010 9:32 am
Last seen: March 24, 2025 11:48 pm
Topics: 53 / Replies: 3323
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RE: ANyone having trouble with OPUS lately?

Solving a nagging problem and learning something new is always a great feeling.

1 year ago
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RE: How much does it cost...

The $200-$300 number is, almost certainly, for a mortgage certificate (or whatever they call them in your area). Which all surveyors know is not a sur...

1 year ago
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RE: How do you plan your control networks given a supplied accuracy spec?

Fine by me. Not my problem if they can’t understand accuracy, and I don’t need to take on liability for a spec that I can’t meet. OK as long as you h...

1 year ago
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RE: GNSS RTK Accuracy

For control with RTK I collect a session, then rotate the rod 180° and collect another. I collect until the 3d coordinate quality number reaches 0.02'...

1 year ago
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RE: Is it a Subdivision?

That would be ideal, but I doubt that there is much to be gained. If such a document can be produced, the property remains merged. If a document, poss...

2 years ago
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RE: The state of the Profession (in Oregon)

BTW - this symposium is going to be rebroadcast this week. I think maybe people could still get in on that. If so, it's super cheap and easy PDH's. Ju...

2 years ago
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RE: The state of the Profession (in Oregon)

Early in my career GPS was the new emerging technology and there were early adopters providing specialty GPS control services. Not all were licensed s...

2 years ago
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RE: Is it a Subdivision?

"Given that there’s is no deed expressing an intent to merge the two parcels, when and how did the parcels merge?” ....hopefully they wouldn’t sugg...

2 years ago
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RE: Is it a Subdivision?

To reiterate what I said earlier - the academic question of whether these should still be seperate lots or not is of no consequence. What matters is i...

2 years ago
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RE: Is it a Subdivision?

Here in Oregon there is the time before the Subdivision Control Act of 1963, and the time after (technically, there is also the 10 year period the law...

2 years ago
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RE: Boots Again

I had my Danner Rain Forest boots rebuilt a couple years ago. It cost a couple hundred dollars and took a couple weeks. About half the price of a new ...

2 years ago
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RE: Unimproved alleys

The alley is a public right of way and, therefore, cannot be adversely possessed. Application could be made to have it vacated. That line that extends...

2 years ago
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RE: Bringing control to a site

@bc-surveyor the precision is one thing and the freedom from blunders is another. Properly done, it is hard to f up a level loop and easy to trap an...

2 years ago
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RE: Bringing control to a site

When you say "Static better than RTK..." do you mean that from what you've seen you'd trust a static OPUS solution to be more accurate than, say a 3 m...

2 years ago
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RE: Bringing control to a site

This company really likes to take out a level whenever they can. We rarely did this back home ... A. Levelling is the very best way - in terms of a...

2 years ago
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RE: Gps pole height

@lukenz I agree. In the earliest days of GPS maybe. The documentation for my Leica GS18 makes no mention of antenna orientation. I’m confident that ...

2 years ago
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RE: Pavement Creep, and PK nail moving

One more reason to not rely on MAG nails, especially those hammered into asphalt, for control in the medium to long term.

2 years ago
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RE: Equipment for solo fieldwork

is there a more specific name for the type of robots you are referring to? Try "Robotic Total Station".

2 years ago
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RE: Disclaimers

I remember a case in Arizona a few years ago where the contract limited the liabilitiy to the cost of the engineering design, and it was upheld. Th...

2 years ago
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RE: Computer advice - college

Stop making your college age son's problems your own. Give him a reasonable computer allowance. Whatever he doesn't spend is his to keep, but he gets ...

2 years ago
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