SMR's are effectively our scan targets, so we have 20 of them, with all sorts of different mountings, from traverse kits, small magnet mounts, large m...

I'm a mechanical engineer with a background in field metrology, my daughter is a surveyor, we operate a small family business. 😉

Customer expectations can be painful. I suspect other companies are telling the customer they can achieve 2mm, or have told them that. Leica's P40 ...

SALSA, we have a customer that uses Starnet, we wrote software to convert target observations from Trimble jobxml and Topcon scan project files to SAL...

We choose CORS reference stations with atomic clocks, these are also fiducial coordinate sites, fixed in our LSA. Our receivers don't have atomic clo...

@johnymal Are you also performing the scanning, or just the control network?

@johnymal That's right, we were on site for 5 months, it was a big job. Two to three weeks will still get you good accuracy, but we're talking 4 to ...

@landbutcher464mhz Better vertical accuracy

The SMR prisms have 0.1mm centring accuracy, the precision tribrach carrier adds another 0.1mm of radial runout (I checked with a dial gauge). The S...

@johnymal We'd visit the GPS stations each morning to check level and over point. AUSPOS can process a week of observations, so we'd grab that dat...

@johnymal Sounds like a job we did last year for a client, it was a big job for scanning, about 1.2 km long (0.72 miles), they had a scanning stand...

I don't have a tripod, but there's a photo of it on page 11, showing cross slides. K&E originally was painted in a crinkled green paint, so yours ...

Well you could put an RTK or prism on the top of something like this and a prism at the hole for a backsight. Make sure it's plumb of course. It has a...

Be good to see this scanner in your lidar shootout, to demonstrate the difference least squares makes (with and without). I can share a copy of our s...

Our customer has a threee year old least squares adjustment of an Airport runway, there has been some subsidence, he's planning on using horizontal di...

Great video. Just yesterday, I modified our in house software to translate Topcon GLS scanner prism target observations into Star*Net .dat format, fo...

👍 Excellent video.

I can show you a small job if you like, it's fairly simple. The hardest part is entering covariance matrices from Sinex files.