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michigan-left
michigan-left
@michigan-left
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Joined: November 7, 2021 2:04 pm
Topics: 10 / Replies: 374
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RE: infrastructure headache

@frozennorth?ÿ At least you knew they wouldn't blow away. Trimble seems to have adopted and continued their "heavy as boat anchor" principle on the ...

4 years ago
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RE: Surveying down from height - sighting accuracy

@rover83?ÿ I looked into getting a right angle eyepiece about a month ago and was a bit surprised at the $735 price: Trimble P/N: 78500007 (S Series ...

4 years ago
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RE: Surveying down from height - sighting accuracy

Nodal prisms will help, but I don't know if this is your magic bullet. Many surveyors don't use/never heard of nodal prisms, which is surprising to m...

4 years ago
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RE: infrastructure headache

There's a total station set up on the street corner in the lower right corner of the window at the 1:16 mark of the video. Maybe a geodimeter? ?ÿ

4 years ago
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RE: My Least squares adjustment needs fixin'

@jbw?ÿ Thanks. I'm glad it helped. I was fortunate early in my career to learn some valuable lessons from Alan Akman and Jessie Hummel (Caice Co-Fou...

4 years ago
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RE: My Least squares adjustment needs fixin'

@bc-surveyor?ÿ Thanks for some of the background info on your data, it is helpful. I, like lots of folks here, have used various software over the y...

4 years ago
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RE: My Least squares adjustment needs fixin'

@bc-surveyor?ÿ "I think I should steer this conversation back or track a bit with some observations I've made. Lets forget horizontal for now and foc...

4 years ago
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RE: My Least squares adjustment needs fixin'

The original post from the other thread (Collecting-Processing static Data for DGPS) indicates you came into this project after it started. Quick sum...

4 years ago
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RE: Collecting & Processing Static data for DGPS

@rover83?ÿ I'm glad you've bluebooked dozens of projects using PAGES/PAGES-NT. Same kudos about your Certified TBC Trainer status and in-house traini...

4 years ago
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RE: Collecting & Processing Static data for DGPS

@geeoddmike?ÿ "Step 6: If everything is OK in fixed.rms then this step simply combines all the single-baseline, fixed-integer solutions into one mult...

4 years ago
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RE: Collecting & Processing Static data for DGPS

@rover83?ÿ "Unless we're processing with a true "session" or multi-baseline processor such as PAGES or some of the older programs (I think TRIMVEC wa...

4 years ago
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RE: Collecting & Processing Static data for DGPS

@rover83?ÿ Read my last post to Bill93.?ÿ Replace the word "sets" with "vectors"?ÿ It's the same concept. Yes, 3 GNSS gives 3 vectors between 3 poin...

4 years ago
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RE: Collecting & Processing Static data for DGPS

@bill93?ÿ Maybe we're saying the same thing, maybe we're not: The OP wanted to "help dial in their control network". I think many would agree that L...

4 years ago
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RE: Collecting & Processing Static data for DGPS

@rover83?ÿ My recollection of the measurement theory and a "properly adjusted" least squares adjustment needs the following: properly weighted (error...

4 years ago
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RE: Collecting & Processing Static data for DGPS

@bc-surveyor?ÿ Since you seem comfortable post processing vectors, we've used the following method in the past when we only had two (2) GNSS receiver...

4 years ago
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RE: Collecting & Processing Static data for DGPS

"(5km long corridor project that will last a few years and has numerous bridges and viaducts)" "main control hubs" ?ÿ I would definitely consider s...

4 years ago
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RE: Keep Digging Itƒ??s Down There

@samlucy3874?ÿ Here's some more punishment: 3 corners within 4'. Depths: 0.8', 1.5', 1.8'.

4 years ago
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RE: From a few weeks ago.....

Better than a turkey baster, or a DeWalt:

4 years ago
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