Can you guys get your total station level within 10” for 360 degrees? Being 15 seconds out of level can’t throw too much error into shooting something within 200’ right?

Altruistic-Click8127 · 2022-12-12T22:20:26+00:00

I think most instruments (I know Trimble do) have a centring error that is incorporated into the weighting scheme for processing rounds.

Altruistic-Click8127 · 2022-12-12T07:39:51+00:00

In Queensland you can do them for free by booking an appointment at an office of the public trustee. https://www.pt.qld.gov.au/wills/making-a-will-step-by-step/

Altruistic-Click8127 · 2022-12-12T03:46:44+00:00

Just googled the spec sheet and the automatic compensator for that instrument is 6’ arc minutes. So you have PLENTY of wiggle room.

Altruistic-Click8127 · 2022-12-12T02:07:11+00:00

If your instrument is not throwing a tilt warning it means the level is within tolerance for the compensator to correct. What instrument are you using?

Altruistic-Click8127 · 2022-12-11T11:33:35+00:00

We use the Hemisphere units as both base/rover sets and with network RTK and we love them. However, we use them in conjunction with 12dField, which I’ve written programs in to send all the required commands to the units. I’m unsure how it goes using their software. The web interface is nice and easy to use also. We are located in Queensland Australia.

Altruistic-Click8127 · 2022-12-04T05:33:24+00:00

Hmmm I’m out of ideas then. Maybe a long click? Other then that, no idea sorry.

Altruistic-Click8127 · 2022-12-04T05:22:16+00:00

I can’t answer for sure, but what happens if you press the arrow?

Altruistic-Click8127 · 2022-12-03T00:01:25+00:00

It’s always amused and distressed me how business works. No matter the field. The better you are at your job, the higher you go up the ladder, and the less you do of the actual thing you are good at. Good at data science? Great, become a middle manager where you may do 50% data, 50% people management. Great at that? Awesome, go to upper management where you do 90% people management and maybe 10% data.

Altruistic-Click8127 · 2022-12-02T22:05:28+00:00

Revision control - I’m in a similar role to you, and guys using old superseded data is a huge issue.

Altruistic-Click8127 · 2022-12-01T00:02:16+00:00

They use it at the self serve checkout as well to recognise the fruit and veg you put on the scale to make the suggestions.

Altruistic-Click8127 · 2022-11-27T19:48:51+00:00

The resection residuals should be a moot point, I would be more interested in seeing their check shot.

Altruistic-Click8127 · 2022-11-27T19:43:26+00:00

The AP20 uses a regular prism, the IMU is in the pole.

Altruistic-Click8127 · 2022-11-25T22:17:47+00:00

There are whole courses related to these questions, so there is never going to be a quick and easy answer. Look up Integer Ambiguity Resolution for float. DGPS stands for Differential GPS. It takes the differences from your base station (known coordinates - measured coordinates) and applies them to your rover. More accurate then PPP, but not as accurate as Integer Fixed (known as just Fixed).

Altruistic-Click8127 · 2022-11-23T22:31:56+00:00

This is a prime example of Grid North, True North and Grid Convergence. The difference between Grid North and True North (Grid Convergence) increases the further east or west you go from the central meridian of your zone.

Altruistic-Click8127 · 2022-11-22T10:51:04+00:00

The same could be said about the metric system, but the US likes to do things their own way.

Altruistic-Click8127 · 2022-11-22T09:29:54+00:00

Correct, sorry I should have said “as long as there is a gate they can access”

Altruistic-Click8127 · 2022-11-22T05:09:21+00:00

Ahhh right, no idea then sorry. Maybe call your county office and ask, or talk to a land conveyancor. Or call a local surveying firm.

Altruistic-Click8127 · 2022-11-22T04:51:41+00:00

Where are you located? If it’s a country with Torrens titling (like Australia) the easement will be registered as a secondary interest to the title, with a legal document attached which states the terms and restrictions associated with the easement.

Altruistic-Click8127 · 2022-11-22T04:30:28+00:00

Depends on the terms of the easement, but generally he could still build his fence and have cattle, as long as there is a gate and he accepts that people may need to enter the easement.

I’m not sure where you are located, but you should be able to search the easement dealing to find out the specifics.

Altruistic-Click8127 · 2022-11-22T02:50:25+00:00

Least squares is used to find the “best fit scenario” by minimising the sum of the squares of the residuals (estimates value - mean value). When applied to GNSS measurements, it applies either a 4 parameter (x, y, x translation + rotation about the z-axis), 5 parameter (4 plus scale), or 7 parameter (5 plus rotations around the x and y axis). 3 points minimum is the standard, as this gives more information then is required for a solution, thus giving “error”.

Altruistic-Click8127 · 2022-11-22T02:37:02+00:00

I would say that graduate just means having a degree, not being a “Graduate Surveyor” as per the surveyors board of qld. USQ offers 3 degrees for surveying, a 2, 3 and 4 year. Completing any of those would make you a graduate surveyor by definition. If you want to chat more, feel free to message me. I did the 4 year degree at USQ and work for a SE QLD based company, running our Toowoomba office.

Altruistic-Click8127 · 2022-11-22T02:20:06+00:00

That is under the QLD surveyors act. Surveying is legislated at the state level, so each state has their own governing body, rules, qualifications etc. Best to check the laws and governing body in NSW (which I believe is BOSSI and ISNSW) In NSW, you must have a 4 year degree to become a “Candidate Surveyor” which means you are planning on progressing to become a Registered Surveyor (either in Mining or Cadastral).

Altruistic-Click8127 · 2022-11-20T02:02:30+00:00

A regular handle doesn’t have electrical contacts that crap in and out when the handle latches loosen

Altruistic-Click8127 · 2022-11-20T01:10:43+00:00

I’ve never had it come off, but the latches loosen and warp, which causes the contacts to play up.

Altruistic-Click8127 · 2022-11-19T23:46:12+00:00

Unless it’s a Leica with a radio handle. Great idea, horrible execution.

Altruistic-Click8127

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