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pfirmst
pfirmst
@pfirmst
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Joined: October 15, 2021 3:31 am
Last seen: May 13, 2026 7:09 pm
Topics: 20 / Replies: 198
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RE: Pushing the limits of GPS accuracy using GPS Post processing

The other is time. What clock steering are you applying to your receiver is it just what’s built in or do you have the ability to get cesium and or r...

3 years ago
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RE: Pushing the limits of GPS accuracy using GPS Post processing

Yes, we're setting up a tightly controlled network, measured with GPS, TS and level, it will be least squares adjusted using SALSA. We need it tight,...

3 years ago
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RE: Pushing the limits of GPS accuracy using GPS Post processing

@jitterboogie Awesome, thank you, I know nothing about it, I'll do some research to help me understand and find someone local who does. Cheers, Pete...

3 years ago
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RE: Pushing the limits of GPS accuracy using GPS Post processing

It's on top of a double story concrete building, looks reasonably solid to me, more solid than a tripod (which moves around with temperature throughou...

3 years ago
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RE: Pushing the limits of GPS accuracy using GPS Post processing

@jflamm That's close to the tolerance they use in the pits for mining. They want it tighter around the plant, it doesn't cost much to let the GPS si...

3 years ago
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RE: Pushing the limits of GPS accuracy using GPS Post processing

@lukenz Yes mains supply for anything longer than 24 hours, although it would also be possible to swap out batteries daily, for a week.

3 years ago
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RE: Pushing the limits of GPS accuracy using GPS Post processing

@lukenz Yep, they're using a Zephyr geodetic 2. I had figured the choke ring was an improvement and some of the later designs have improved capabili...

3 years ago
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RE: Faster accurate terrestrial scanning with survey methodology.

@beuckie Thanks, I'll take you up on your generous offer. Talking to my local rep, Reigl doesn't recommend setting up the instrument over a point, ...

3 years ago
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RE: Pushing the limits of GPS accuracy using GPS Post processing

@lukenz @jitterboogie Installing deep seated survey rods, no other accurate references (a mine in the middle of nowhere), nearest mark has an estimat...

3 years ago
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RE: Pushing the limits of GPS accuracy using GPS Post processing

I guess Einstein was right when he said everything is relative. So I guess, if you have some really accurate observations, at intervals over time, y...

3 years ago
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RE: More job security

@jitterboogie Scary thing, some peeps are gonna try that: "It's mine, check google maps!" lol.

3 years ago
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RE: Faster accurate terrestrial scanning with survey methodology.

Adjustment allowance for setting up over a point (can be rough aligned using the laser plummet in the instrument height measurement tool, then fine al...

3 years ago
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RE: Faster accurate terrestrial scanning with survey methodology.

I've had a chance to discuss the new Riegl vz600i with the local dealer here in Australia. To achieve the stated 3mm @ 50m or 5mm @ 100mm accuracy, t...

3 years ago
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RE: Faster accurate terrestrial scanning with survey methodology.

The scanner carbon fibre tripod table adapter for tribrach, following Finite Element Analysis, modelled with 500kg clamping force on the 5/8-11 thread...

3 years ago
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RE: Faster accurate terrestrial scanning with survey methodology.

In an upcoming job, our client has recent scans of their mine wash plant, not geolocated, we've been asked to geolocate them. I find this quite a lot...

3 years ago
Reply
RE: Faster accurate terrestrial scanning with survey methodology.

I've had a chance to discuss the new Riegl vz600i with the local dealer here in Australia. To achieve the stated 3mm @ 50m or 5mm @ 100mm accuracy, t...

3 years ago
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