The above post by shawn billings, # 37, has a boat load of info.
I still use an old Legacy E. I can go to woods, to stake a corner. Use a float to get within 10' of a corner, I need to set. Wait for a fix, and then use a suunto compass, and box tape to set the corner. THEN move up on the set rebar, and verify it. OR move over 10' or so to another spot, and REPEAT, and use the suunto and tape to VERIFY the set corner. IT's my work around.
I can imagine a number of scenarios where I could use an LS.
N
Shawn Billings, post: 329067, member: 6521 wrote: I'm pretty sure it is active now, Jim.
Downloading now!
Shawn Billings, post: 329063, member: 6521 wrote: "Will it give a bad fix?"
I haven't found the GNSS receiver yet that can't be fooled into giving bad answers.
If I read this correctly does that mean someone was awarded $10,000? 😉
Regarding the $10,000
I doubt that anyone will ever be able to make a valid claim to it. "One shot wonders" do not qualify as surveying, any more than those that never close their traverse.
It is not a question of will the LS ever provide a bad fix for a brief moment of time. The answer to that is yes it will.
However, a bad fix will not go undetected if you follow proper procedures. This is why we are surveyors, and not just button pushers. The available real time quality control checks are very powerful. I would rattle them all off, but I might miss a few in the space of a single post.
John
mattsib79, post: 327523, member: 1138 wrote: The data collector and receiver are all in one. There is no need to "get above the obstructions". See the picture that I posted earlier in this thread. It was a picture of my daughter using the LS at 4.0' high.
The form factor is very different but after using it, I would not want to go back to a 2 meter pole.
Still haven't really seen a satisfactory answer to this issue, so I must presume that there isn't one.... Timers and pads and other equipment don't do it for me, I want the data collector in my hands at all times.
Jim in AZ, post: 329276, member: 249 wrote: I want the data collector in my hands at all times.
If having the data collector out of reach 0.01% of the time is a deal breaker, then the Triumph-LS is clearly not for you. Fortunately, Trimble equipment design and performance is perfect, so no worries, eh?
Jim Frame, post: 329281, member: 10 wrote: If having the data collector out of reach 0.01% of the time is a deal breaker, then the Triumph-LS is clearly not for you. Fortunately, Trimble equipment design and performance is perfect, so no worries, eh?
It's far more than 0.01%. We don't use Trimble - we use Topcon. Wouldn't say its perfect, but it's damn close....
Jim in AZ, post: 329276, member: 249 wrote: Still haven't really seen a satisfactory answer to this issue, so I must presume that there isn't one.... Timers and pads and other equipment don't do it for me, I want the data collector in my hands at all times.
"Timers and pads" are solutions to very rare situations. The vast majority of the time, the data collector (which is also the receiver) is eye level, within easy reach and has no problem tracking satellites and acquiring fixed solutions at this height. The format is extremely unconventional and most people, upon first seeing the system, say they would rather use a conventional separate head and data collector. After a few hours of use (with a few exceptions) people come to appreciate and prefer the more compact integrated system. To each his own, of course. It's the beauty of a free market system that you have choices.
Shawn Billings, post: 329284, member: 6521 wrote: The format is extremely unconventional and most people, upon first seeing the system, say they would rather use a conventional separate head and data collector.
I was one of those people. I might still be one if there were a practical way to get the weight of the receiver off the pole without having to use a backpack, but I haven't seen anything like that yet.
In just a couple of weeks I can tell you Javad has the best support going. It is really good to speak with a Surveyor instead of a Tech. They are really helpful and not in a hurry to get you off of the phone. They have really spent more time with me than they should have.
Thanks ya'll
I just got an LS a few weeks ago with a T2 base and 435 radio. I havent been able to use it much so far. I collected some topo with it the other day and two out of 100 points had a vertical error of 15'. Points surrounding each of these shots are correct. The LS was about a thousand feet from the t2 with open skies to the North, East, and West at the LS and wide open top of hill scenerio for base. Wooded to the South. These points were fixed and looking at the review points screen they had rms values less than .02. Shots were for 5 epochs. Anyone else seen this happen with this system?
Adam, do you know what the minimum number of engines is set to? Also do you have store screen shots checked on? This may help to review what happened.
Also, in the open this should not happen. Trees to the South become more challenging because this is generally the direction of the majority of the satellites. It is wise to use the verify with resets in these environments so that bad fixes can be identified and removed.
Shawn Billings, post: 329777, member: 6521 wrote: Also, in the open this should not happen. Trees to the South become more challenging because this is generally the direction of the majority of the satellites. It is wise to use the verify with resets in these environments so that bad fixes can be identified and removed.
It was set to at least 2 engines but I was trying to use lift to start and lift to end. I have read thru the manual and learned a little about the settings from it, but I would love to get a hold of something that shows what settings work the best for each different scenario ( wide open topo, wide open control, next to canopy, in canopy. Just a little more detail than what the manual gives would be awesome. In my state the board requires 180 epochs on control and boundary points. The LS had trouble getting this many epochs without starting over. Maybe I need to set the groups higher? Any help with this is appreciated and please bear with me, I am still on the tangent leading up to the learning curve.
Adam, post: 329779, member: 8900 wrote: It was set to at least 2 engines but I was trying to use lift to start and lift to end. I have read thru the manual and learned a little about the settings from it, but I would love to get a hold of something that shows what settings work the best for each different scenario ( wide open topo, wide open control, next to canopy, in canopy. Just a little more detail than what the manual gives would be awesome. In my state the board requires 180 epochs on control and boundary points. The LS had trouble getting this many epochs without starting over. Maybe I need to set the groups higher? Any help with this is appreciated and please bear with me, I am still on the tangent leading up to the learning curve.
"In my state the board requires 180 epochs on control and boundary points. "
Your State specifies this? In their "Minimum Standards" or something similar??
It could have been set on one engine, I am not 100% on whether it was or wasnt, but I have it set on 2 now.I do not have store screen shots selected. Will this eat up a lot of memory if I just leave it on all the time even for topo? I can look at the point in review points and see the base rover stat's which are all good. I did send a message and the project to Javad thru support - messages.
Jim in AZ, post: 329781, member: 249 wrote: "In my state the board requires 180 epochs on control and boundary points. "
Your State specifies this? In their "Minimum Standards" or something similar??
Yes, for boundary and control, points have to occupied for at least 180 epochs twice with at least 4 hrs seperation. NC
On my digital camera there is an EASY button. It automatically sets things to automatically do a bunch of stuff. And, it helps me, because I have not taken time to figure out all those settings!
Where can I find this in the NC standards?
I will see if I can find where it states this, I thinkit is NC chapter 21.1606 or 1607 maybeBS are u licensed in NC too. I also have a spreadsheet that was given to me at a seminar that will calculate positional accuracy for NC board standards for Optus static,rs, and network if u work in NC, I got it at a seminar put on by Gary t former NC board pres.