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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: Star*net error ellipse analysis

I have never done it in star*net. In geolab, the file is exactly the same, but you tell the program it is a simulation. It totally ignores the actual ...

10 years ago
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RE: USCGS Historic Markers

That is a "cone". Not sure exactly what they look like other than the top. Here is a description from another nearby station of the same vintage (DISB...

10 years ago
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10 years ago
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RE: What is it?

We also used the "drop a rock" method as mentioned by Radar.I would be interested to know how many have actually done a topo with planetable and alida...

10 years ago
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RE: USCGS Historic Markers

I found station BETHEL 1839 (JU3319) about 23 years ago when we were doing a bluebook survey for the City of Philadelphia. It was a few feet down, and...

10 years ago
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RE: Star*net error ellipse analysis

rfc, post: 386297, member: 8882 wrote: Is there a way to test this in Star*net by adding dummy, or fictitious observations, like from 14 to 1700 or f...

10 years ago
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RE: 1896 Salina Base Line

That really needs to be GPS'd! I see that EAST BASE is a FBN, but not WEST BASE. Wow-an original intact baseline is present in Salina and MEADES RANC...

10 years ago
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RE: Laying Trimble 5600 Flat

I used to use an old T2 exclusively (before total stations). It came in a bullet case, and we always kept it upright, as that is what I was taught by ...

10 years ago
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RE: The application timed out waiting for a response

Oh, now I see that it is a 5700. Are you using the USB download or com port? If one doesn't work, try the other. Last resort, remove the CF card and p...

10 years ago
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RE: The application timed out waiting for a response

do you have real com ports on your computer or are you using a USB-to-serial dongle?I have never run data transfer from inside TBC (you don't say if y...

10 years ago
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RE: Grid/Ground Madness

Yes, if you publish sq ft then I agree it has to be to the nearest square foot, but decimals of sq ft?I saw once a treatise in a textbook on uncertain...

10 years ago
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RE: Contractor available for ground truth data collection

I agree, Duane, a person fresh out of school is not a finished product. I worked on a survey crew before I went to school (well, after I went a while ...

10 years ago
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RE: 1917 Chaining Accuracy and the coordinate mystery

I wonder how an interesting post about the quality of older work and some really interesting analysis that Scott did devolves into a discussion of ter...

10 years ago
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RE: Contractor available for ground truth data collection

Ric Moore, post: 385665, member: 731 wrote: I'm curious as to why you believe this? Not trying to be argumentative, just want to understand your rati...

10 years ago
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RE: Grid/Ground Madness

Speaking of area...I have seen plats that have areas to the fraction of a sq ft. I think what many people don't realize is the uncertainty in the comp...

10 years ago
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RE: Trimble S6 stolen in Pottstown PA

There is always the issue of power. In order to transmit a position, the GSM module needs to be powered up and connected to the network. So if it is s...

10 years ago
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RE: Efilecabinet Software

hlbennettpls, post: 385812, member: 10049 wrote: I found it quite easily on their website when I clicked on "Products" link. The web page I got by do...

10 years ago
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RE: Efilecabinet Software

I don't like it when you cannot see the price upfront, I had to go to a pcmag review to find the price, which is $30/month/user. Not that I am against...

10 years ago
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RE: Is modern mapping "better"

There is an excellent report about the 1920's surveys....I have recovered a number of triangulation stations, and tied in some when I needed to do a l...

10 years ago
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RE: National Geographic PDF Quad Sheets

makerofmaps, post: 385694, member: 9079 wrote: Hope this isn't to off subject but they often brag around here about our mapping abilities and history....

10 years ago
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