Sean Joyce
Well-Known Member
To anyone out there attending the New York Conference in Albany stop by and see Duane Frymire and I at the Javad Booth #4.
New York Conference
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Sean Joyce
Well-Known Member
Duane gave a nice presentation today.
One of the sessions by another surveyor about RTK and boundary surveys mentioned the Javad equipment and how well it works in the woods.
Had a lot of interested visitors afterward.
Bill Eggers
Active Member
I was there and had the pleasure of meeting Sean for the first time. I bought my Javad system through Duane last month after attending a demo with the surveyor who did the presentation. He had wanted to blow Javad equipment out of the water and ended up being very impressed and essentially gave it a sales pitch before 300 surveyors. I was apparently the only one in the group to be a Javad owner at this time. Hopefully there will be many more.
The demo included a basic comparison of getting the same points located within a few minutes of each other using the LS and a Trimble receiver, both working with their respective base units. They were both equally capable of getting good positions in some difficult sites. What was very impressive though was the ability to store and post process the data very verification and the amount of documentation provided using the Javad, which they could not do with the Trimble.
The key take away was the ability to not just get the data, but to feel confident that it was correct and be able to document that.
I had a great time at the conference despite the fact that I did not get to touch my LS for three days!
The demo included a basic comparison of getting the same points located within a few minutes of each other using the LS and a Trimble receiver, both working with their respective base units. They were both equally capable of getting good positions in some difficult sites. What was very impressive though was the ability to store and post process the data very verification and the amount of documentation provided using the Javad, which they could not do with the Trimble.
The key take away was the ability to not just get the data, but to feel confident that it was correct and be able to document that.
I had a great time at the conference despite the fact that I did not get to touch my LS for three days!
Duane Frymire
Active Member
The conference was a great success. I had sensed disbelief in the survey community, but didn't realize the extent of it. I have to give a shout out to Ricky Brooks of Brooks & Brooks Surveying. He set up a good experiment; first using conventional measurements with compass adjustment and least squares adjustment, tied to state plane with static gnss sessions. We then located some of those with RTK. It was a blind experiment for me (although Sean had tipped me off it was about why not to use RTK for boundary work), just figured JAVAD would pass whatever he was doing. I'm told the LS/T2 was closer than the Trimble on all points, and the last one of the day Trimble was 1.42' off while JAVAD was still good, and significantly I knew JAVAD was good because even though it didn't make it through the boundary profile I stored anyway and PPK agreed with RTK (no way to know if the Trimble position was good or not if the points had not already been analyzed and adjusted). Also significant is the JAVAD quality indicators and accuracy report were proven not to be too optimistic and positions were within the error ellipse calculated by both conventional methods with least squares, and the JAVAD least squares report on this rural boundary with tough canopy and other conditions.
My own presentation focused on the 3 step confidence/consistency/verify plus ppk check procedure in use on a 280 acre boundary retracement. It was approved for CEU's NY LS/PE 1.0, NH 0.25, VT 1.0, NJ 1.0. Happy to share it if anyone is interested in using it, or getting ideas from it. Over 4 GB because of video, but could use dropbox or something.
I think both Sean and I will be doing some on site demonstrations in the coming weeks.
Finally, was great to meet Sean, and see Bill and others. A couple of 20+ hour days preparing just prior, but well worth it.
My own presentation focused on the 3 step confidence/consistency/verify plus ppk check procedure in use on a 280 acre boundary retracement. It was approved for CEU's NY LS/PE 1.0, NH 0.25, VT 1.0, NJ 1.0. Happy to share it if anyone is interested in using it, or getting ideas from it. Over 4 GB because of video, but could use dropbox or something.
I think both Sean and I will be doing some on site demonstrations in the coming weeks.
Finally, was great to meet Sean, and see Bill and others. A couple of 20+ hour days preparing just prior, but well worth it.