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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 5:28 am
Topics: 409 / Replies: 3051
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RE: Geoid Localisation

I believe the way the models are stored is that there is one coordinate in the file (upper left, or lower right, for example), and then a "spacing" re...

10 years ago
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RE: OPUS height uncertainty?

Since the orthometric height is solely dependent on the ellipsoid height (whose uncertainty varies) and the geoid separation (whose uncertainty is con...

10 years ago
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RE: A Giant in Geodetic Surveying is Gone

Wow, Dave, that is a huge shock. I always loved talking to him about the "old days" of surveying, he was a great guy. I would usually see him at vario...

10 years ago
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RE: RTK base site selection.

I have seen a number of "bad" base setups. Here is one, and those trees are not north...

10 years ago
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RE: crossing traverse lines

I have seen many people do this, calling points different numbers every time they occupy it, supposedly so they can inverse to see the closure. I don'...

10 years ago
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RE: crossing traverse lines

Why would he give a point different numbers? Each station should have one and only one designation. Other than that I don't see any problem. As half b...

10 years ago
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RE: Harney Peak's Elevation

Once again J Penry has made an excellent report! Very interesting as always. I was born in the middle of Kansas (Wichita). I was told that if you put ...

10 years ago
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RE: An interesting old quad sheet find

Old quad maps are works of art, done with planetable

10 years ago
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RE: Confusion with Distnacing

Nobody mentions my favorite distance, which is mark to mark (which is a slant range). It is the only one (I think) that is unambiguous. Even an ellips...

10 years ago
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RE: Robot total stations that last 10+ years

eddycreek, post: 401192, member: 501 wrote: I've had my S6 for about 10 years, gets used about every day. Still going strong, actually still using the...

10 years ago
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RE: R10 and AT&T Sim card trouble

John Hamilton, post: 401233, member: 640 wrote: Fortunately I don't need it this week, I will be accessing a vrs through the Yuma or alternatively thr...

10 years ago
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RE: R10 and AT&T Sim card trouble

Mark Silver, post: 401225, member: 1087 wrote: Hi John,I have had similar issues. I believe the current correct answer is to leave everything blank. I...

10 years ago
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Replies: 3
Views: 554
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RE: EOS RTK Safe RTK - Sniff Test?

Same idea as Trimble xFill

10 years ago
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RE: AT&T 2G Sunset and Leica 1200 GFU Modems

Shelby H. Griggs PLS, post: 400745, member: 335 wrote: John, are you going to use that to get RTN data for a rover? I was looking at something very si...

10 years ago
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RE: AT&T 2G Sunset and Leica 1200 GFU Modems

I just ordered an external cell modem with wifi, serial, etc from microhard (canadian company). I will post an update once I receive it.

10 years ago
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RE: Satellite Phones/Terminals?

I had a satellite phone for a while, but it was unreliable (about 15 years ago). I am sure they work better now that they probably have a lot more sat...

10 years ago
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RE: AT&T 2G Sunset and Leica 1200 GFU Modems

I *almost* bought an R8-2 with internal modem earlier this year, it was about 15% cheaper than one with an internal radio. I fortunately found out bef...

10 years ago
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RE: Split a obs file

I also use a batch file. I typically end up with trimble T01 or T02 files. I have a program that will create a batch file with three entries for each ...

10 years ago
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