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mrewenmacdonald
@mrewenmacdonald
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Joined: May 14, 2016 10:15 am
Topics: 4 / Replies: 15
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RE: Confusing discrepancy between GPS and Total Station measurements.

phil_shutt, post: 411959, member: 12458 wrote: Chris has hit the nail on the head there. Let me now if you would like the OSGB36(15) coordinate system...

8 years ago
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RE: Confusing discrepancy between GPS and Total Station measurements.

chris mills, post: 411475, member: 6244 wrote: Ewen, I'm intrigued - how many surveyors go on holiday and take a full set of equipment with them? Woul...

8 years ago
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RE: Confusing discrepancy between GPS and Total Station measurements.

...And I do feel like a bit of an idiot now as the coord system was a utm coord system and not a 3tm, 3tm is something I use often at home in alberta ...

8 years ago
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RE: Confusing discrepancy between GPS and Total Station measurements.

Paul in PA, post: 411256, member: 236 wrote: Lastly I note that Mr Ewen MacDonald has not checked back in here since posting.Hey Guys sorry about the ...

8 years ago
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RE: Confusing discrepancy between GPS and Total Station measurements.

chris mills, post: 411136, member: 6244 wrote: Have you taken into consideration the height above sea level? The scale factor is correct only at sea l...

8 years ago
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RE: Help with tricky Control Network Setup?

Hey Guys, Sorry for the radio silence on this thread.. Just finished my adjustment on Leica Infinity (still working on understanding StarNet) things a...

8 years ago
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RE: Help with tricky Control Network Setup?

MightyMoe, post: 409257, member: 700 wrote: If you do it with GPS? I know it's probably not helpful but I would want R-10's even if I have to rent som...

8 years ago
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RE: Help with tricky Control Network Setup?

Larry Scott, post: 409266, member: 8766 wrote: Tunnel, tram, bridge? This probably ain't sea level.We are approx. 600m asl here but this bridge and tu...

8 years ago
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RE: Help with tricky Control Network Setup?

Bill93, post: 409177, member: 87 wrote: I'm surprised you mention getting a new scale factor. What coordinate system is used for the project that need...

8 years ago
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RE: Help with tricky Control Network Setup?

Larry Scott, post: 409107, member: 8766 wrote: I can't imagine holding existing control if the key element is very high relative accuracy. One X Y, on...

8 years ago
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RE: Help with tricky Control Network Setup?

Paul in PA, post: 409065, member: 236 wrote: How good is the primary control?Primary Control is not great, Just running some checks I found errors of ...

8 years ago
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RE: Help with tricky Control Network Setup?

someone here has suggested to me to just do a GNSS Site Calibration using 4-5 of the existing Primary Control Points to create a new scale factor and ...

8 years ago
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RE: Help with tricky Control Network Setup?

rfc, post: 409062, member: 8882 wrote: Thinking "outside the box"...Can you see any of the primary control or any of the new points from the top of th...

8 years ago
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RE: Help with tricky Control Network Setup?

Hi just to clarify on the equipment, I am running a Leica TS15 R400 2" Robotic Reflectorless, and leica manufactured round prisms although I do have a...

8 years ago
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Replies: 54
Views: 10
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RE: Anybody have some good Book Recommendations ?

Tom Adams, post: 372256, member: 7285 wrote: I've always enjoyed R B Buckner. I have "Surveying Measurements and their Analysis" on my shelf. Not sur...

9 years ago
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