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Which Trimble Data Collector what type of work and why is it your choice.
350RocketMike replied 1 year, 9 months ago 20 Members · 49 Replies
I use TBC exclusively now for the reasons given by Mighty Moe. All of our field equipment is Trimble except the Leica scanners (processed in Leica software) and UAS (Pix4D).
I have a use for StarNet. In locating the US97 “C” line in Siskiyou County I have 1952 field notes with triangulation ties from certain stated stations on the “C” line, 2 per monument or object tied. Objects that we tied into our survey include a 1-1/2″ iron pipe at a Section Corner (I think it is probably stable because it is down one foot in a gravel road), our SW corner which is a 3/4″ iron pipe at the surface in silty sand (could’ve moved over the decades), our NW corner which is a 3/4″ iron pipe found but badly disturbed, our SW corner now gone, and a triangulation station with azimuth mark (both found). We have station/offset to other marks found but they are nearest foot or worse. So I’m going to try to feed the measured data from 1952 into StarNet holding my coordinates fixed and see what kind of answer I get for the “C” line.
If I do no adjusting the bearing from the section corner to the triangulation station is the same and my distance is about 3 tenths longer (about 3 miles).
What is the standard error of an angle wound up six times on a 20″ transit?
- Posted by: @dave-karoly
What is the standard error of an angle wound up six times on a 20″ transit?
Theoretical value is 20/sqrt(6) = 8.2
. - Posted by: @bill93Posted by: @dave-karoly
What is the standard error of an angle wound up six times on a 20″ transit?
Theoretical value is 20/sqrt(6) = 8.2
That’s what I get (assuming “wound up” means a single set 2D/2R to both FS and BS).
“…people will come to love their oppression, to adore the technologies that undo their capacities to think.” -Neil Postman @rover83 It means they accumulated 6 angles on the plate.
for example,
1 – 20?ø
2 – 40?ø
3 – 60?ø
4 – 80?ø
5 – 100?ø
6 – 120?ø
It was a method to achieve more precision. Only the last angle was used to obtain the answer, in this case by dividing by 6.
typically 1x D, 2x R, 3x D, 4x R, 5x D, 6x R
- Posted by: @dave-karoly
@rover83 It means they accumulated 6 angles on the plate.
for example,
1 – 20?ø
2 – 40?ø
3 – 60?ø
4 – 80?ø
5 – 100?ø
6 – 120?ø
It was a method to achieve more precision. Only the last angle was used to obtain the answer, in this case by dividing by 6.
typically 1x D, 2x R, 3x D, 4x R, 5x D, 6x R
Darn it, forgot the link. Was trying to be tongue-in-cheek and reference this old thread and the argument about what an “angle” means. Carry on, nothing to see here.
“…people will come to love their oppression, to adore the technologies that undo their capacities to think.” -Neil Postman - Posted by: @rover83
It’s been many years since I worked for a firm that mixed manufacturers for total station and GNSS,
Count yourself lucky. It’s not as common as you seem to think.
- Posted by: @mark-mayerPosted by: @rover83
It’s been many years since I worked for a firm that mixed manufacturers for total station and GNSS,
Count yourself lucky. It’s not as common as you seem to think.
Big firms sure only one brand but most smaller shops buy over time and that often means mix and match even if it’s just different generations of gear from same brand and won’t talk to each other. E.g firm I work with still has a system 1200 GNSS set still going but also has TS 16 robot and they don’t work together.
I guess I could consider myself lucky in that I’ve experienced 7 firms over 17 years – only 3 of which were really “big” – and never really thought much about conversion, even when I had to do it. If I did really need it I would probably go with StarNet.
I prefer the QC and adjustment process of TBC to StarNet, for the reasons pertaining to QC and adjustment that I outlined above. It’s rare to import data from a completely different manufacturer, and unless it’s needed, doesn’t tip the scales for my preference between the two. That’s pretty much it. I still like both programs.
“…people will come to love their oppression, to adore the technologies that undo their capacities to think.” -Neil PostmanThe company I work for was a small firm but now he’s bought 5 other local firms in the last 10 years and I guess we’re medium sized now based on number of employees and 3 offices.
They’re slowly trying to convert to all Trimble but maybe they will change their mind on that. Originally it was mostly Trimble for GNSS, (plus one sokkia grx2 base/rover running on magnet field and an old leica 1200 GNSS). Several Leica conventional 800 series running on fieldgenius, sokkia robots running (kind of) on fieldgenius, and a Nikon conventional with Trimble Access. Now we have an sx12 and 2 s5 robots, plus the Leica 1203+ robot that I much prefer over the Trimble s5 (continuing to use it mostly – until IT gets my tsc7 connected to our server, Trimble Access updates hopefully fix some of the annoying problems, and or I’m told I have to stop using the Leica. Lol.
Yesterday working in the rain I used the Trimble s5 in the rain until it got really wet, then it dried out while I worked in even heavier rain on the next job with the Leica to finish out the day and then they both got to dry out. The downside is doing downloads from multiple jobs in 2 collectors end of day.
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