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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 12:56 pm
Topics: 409 / Replies: 3051
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RE: 2012 Thread "Geodetic North Line" ?

Take a polaris observation to a reference mark. Turn the angle to north (astronomic or geodetic if you use the laplace correction). Then use the doubl...

10 years ago
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RE: Any members of the geezer patrol have experience with one of these?

If it was 1983 then it was probably the first. I had thought that the City of Pittsburgh was the first city wide GPS survey, but it was 1984. I rememb...

10 years ago
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RE: Any members of the geezer patrol have experience with one of these?

TI400 was portable compared to the macrometer. The timing in the east coast was middle of the night in winter, middle of the day in summer. Supposedly...

10 years ago
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RE: Any members of the geezer patrol have experience with one of these?

My first job out of college in 1986 was with Geo/Hydro, which was one of the first (or the first) GPS company, they started out using Macrometer V1000...

10 years ago
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RE: Any members of the geezer patrol have experience with one of these?

Those were lots of fun...3 AM in the dead of winter, pull up to the point, fire up the generator...then sit there for 2 hours. And hope the wind wasn'...

10 years ago
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RE: Question about insurance coverages...

Although not for sure yet, it appears they are going to cover those items, he kept asking me about owned versus non owned property (land where it happ...

10 years ago
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RE: A tip for you young fellows

I took my wife along one time when I was doing polaris observations, mainly because she didn't really think I was actually working when I went out all...

10 years ago
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RE: Question about insurance coverages...

toivo1037, post: 387759, member: 973 wrote: Yep,Check your coverage carefully. We found out last winter that all of the equip was covered, but only h...

10 years ago
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Replies: 9
Views: 1038
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RE: Nikon NIVO users

I bought an M3 as a lightweight alternative to my robotic S6 (mainly for travel by air), and also because the DR range is much greater than the S6 (wh...

10 years ago
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RE: Trimble trav kit

I write my own translator for getting the raw data into my database and then from my database to Star*net (and geolab), so it isn't an issue with me b...

10 years ago
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RE: Luca Brasi sleeps with the fishes

Looked for it for a few hours today, dragging the bottom. The bottom is somewhat solid and flat in this area. There is a hydro crew working down river...

10 years ago
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RE: Trimble trav kit

It is to shade the bubble. The other neat thing ours has is a lever that swings out and gives the same HI measurement as to the bottom notch on an S6.

10 years ago
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RE: Resurveying in the 1910 Addition

Kent McMillan, post: 387303, member: 3 wrote: From time to time, I've posted examples of surveyor's reports that give a sense of what level of investi...

10 years ago
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RE: Subdivision or boundary line adjustment or ???

bobwesterman, post: 387333, member: 7106 wrote: I think I was reading this wrong. I was assuming these were all one owner. Bob; This is Washington Co...

10 years ago
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RE: Luca Brasi sleeps with the fishes

The have a gore-tex like membrane in a small vent hole. Lets air in but supposedly keeps water out. Dealer said when on it heats up, and that opens a ...

10 years ago
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RE: Luca Brasi sleeps with the fishes

Sergeant Schultz, post: 387220, member: 315 wrote: How come you didn't jump right in after it? I wasn't there! They took cover inside an operations b...

10 years ago
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RE: Luca Brasi sleeps with the fishes

what is strange is they didn't think the wind was real strong, but there was a heavy downpour. I checked nearby weather stations, no gusts more than a...

10 years ago
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