Rogue points

Those "rouge" points really stand out because they are "red".

Now those "rogue" points, being somewhere they do not belong, are another matter.

You have been busted by the spelling police.

Paul in PA

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Paul in PA, post: 419538, member: 236 wrote: Those "rouge" points really stand out because they are "red".

Now those "rogue" points, being somewhere they do not belong, are another matter.

You have been busted by the spelling police.

Paul in PA

You boys are a tough bunch to get along with I tell ya

But at least Nate saved the day with graphics.

I've experienced the same thing a couple of times. One was a highway interchange complete with a truck stop and we attempted to topo the area with a robot. Too many reflectors (about 4.5' off the ground) on trailers and tractors. About 5% of the data was crazy shots over 10K feet from the job. The cause of course was predictable.

Another time we were using Topcon GR3s with a TDS loaded Ranger DC on a transmission line and substation. The DC seemed to be adding crazy shots without us even knowing it. The points were consecutive with all the other shots but half a county away. Rebooting the DC every hour or so seemed to reduce the number of bogeys, but didn't stop them entirely. We attributed it to possibly static buildup in the DC.

paden cash, post: 419553, member: 20 wrote: I've experienced the same thing a couple of times. One was a highway interchange complete with a truck stop and we attempted to topo the area with a robot. Too many reflectors (about 4.5' off the ground) on trailers and tractors. About 5% of the data was crazy shots over 10K feet from the job. The cause of course was predictable.

Another time we were using Topcon GR3s with a TDS loaded Ranger DC on a transmission line and substation. The DC seemed to be adding crazy shots without us even knowing it. The points were consecutive with all the other shots but half a county away. Rebooting the DC every hour or so seemed to reduce the number of bogeys, but didn't stop them entirely. We attributed it to possibly static buildup in the DC.

I covered one of those reflectors with flagging because the S6 was insisting on turning rounds to it instead of the distant prism target.

I have experienced the same thing with the leica 1200s and reflectorless. I always figured it had something to do with the wavelengths and various surfaces. one out of every 1000 shots or so has a rogue distance which is exponentially longer than it's supposed to be. You might be able to figure out what factor it's off by and correct your shots

Is it the ghost point that gets created if you go into a app without doing a setup? Leica has ghost point which remembers the last setup location and automatically creates a point if you don't do a setup.

I run a Nikon DTM 521. When I first got it (15 years ago) I got a few rouge points if I was shooting a building corner and was holding off to the side of the prism. Would always record a distance of around 1,300 feet. I just make sure I am centered on the prism now.

I once worked for a company that had several crews, each equipped with identical Geodometer 600's and Husky data collectors. One crew in particular, and only one crew, would occasionally have a topo shot that was way out of whack on distance by several thousand feet. Service tech denied that it could happen. But there it was. It only ever happened on topo shots so it was something with the tracking mode measurement. I'm not sure the issue was ever resolved.