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john-hamilton
john-hamilton
@john-hamilton
Member P&R, Founder
Joined: September 13, 2010 5:25 am
Last seen: September 17, 2026 2:17 pm
Topics: 409 / Replies: 3051
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RE: Double run leveling accuracy

It is allowable in the NGS specs to run one way between existing marks if the new run meets the section misclosure. All new marks must be double run. ...

11 years ago
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RE: Double run leveling accuracy

Curiously, I am dealing with a situation right now where a client ran levels one way between 4 existing marks (a linear project). He also GPS'd the tw...

11 years ago
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RE: Double run leveling accuracy

Paul, that is so incorrect. I can run a line of levels A to B to C to D to E, etc. If the endpoints are known existing marks, and the line closes, I h...

11 years ago
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RE: Double run leveling accuracy

According to the Geodetic glossary:leveling, double-run - Leveling done by proceeding from starting point to final point and then returning to the sta...

11 years ago
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RE: Double run leveling accuracy

Double run leveling is forward-back runnings of a section. Good practice is to run them at different times of day, for example forward in the AM and b...

11 years ago
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RE: R10 5HZ

As Eric said, I doubt any radio link could handle it. An ntrip connection over cell maybe could. But the real question is why? I think latency would m...

11 years ago
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RE: Small Waterway Cross-Sections - Best Vehicle?

My memory was faulty...we used two boards across the kayak, one fore and one aft of the operator.

11 years ago
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RE: Small Waterway Cross-Sections - Best Vehicle?

We have used a kayak with a trolling motor. We put a 2X4 across the kayak, and use straps to hold it tight. On one side we have a rod with GPS at the ...

11 years ago
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RE: pics from the field

Here is what it looks like from the air... To get from one tower to the other you have to go down a whole lot of steps, through the tunnel under th...

11 years ago
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RE: pics from the field

pmoran, post: 347754, member: 8922 wrote: John- is the instrumentation on the structure you are monitoring? It's hard to tell from the pictures. Typ...

11 years ago
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RE: pics from the field

christ lambrecht, post: 347744, member: 284 wrote: Very Nice!I like the combination of the mini prism with the gps antenna on top.Chr. Chris: we do t...

11 years ago
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Replies: 7
Views: 561
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RE: Measure Up Error

prisms are hard to measure to accurately, but all of our prism/adapters are the same, so forced centering preserves the relationship between HI and HT...

11 years ago
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RE: Measure Up Error

Dallas Morlan, post: 347051, member: 6020 wrote: I know of one organization that requires all such measurements, total station or GPS, to be made in b...

11 years ago
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RE: Measure Up Error

with an S6 I believe it is accurate to +/- 1 mm. There is a notch on the lower part of the instrument and it does the corrections. We have a rotatable...

11 years ago
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RE: Star*Net question

Thanks. That sounds like a good converter to have. edit: actually, the only thing in the .jxl file are coordinates, not vectors. I tried expoting from...

11 years ago
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RE: Star*Net question

Figured out a way to get what I want (data into my database so that I can analyze it). You can create a custom export in TBC, and pick the fields, se...

11 years ago
Topic
Replies: 16
Views: 1265
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RE: Star*Net question

Ok, thanks. Like I said, I am a newbie to star*net. I do have the pro version.

11 years ago
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