Post pics of difficult shots

[Nate The Surveyor]

Here is part of the story:
https://support.javad.com/index.php?threads/ls-handle.2439/

My bad... It's a 3" billet.
From Hixon mfg.
https://www.hixonmfg.com/product/gps-antenna-riser-3/

Hixon makes good stuff. Good people.
Tim is the dad, Shannon is the son.
Nate

 

[Sean Joyce]

No... If I wanted it for that purpose, I'd split a piece of pvc, for a spacer...
It it there to give the LS a handle. To set it on steel fenceposts, or pipe posts.

It has a small hole in the bottom. I can drive a 20d finish nail, into a wood post, and park the LS, while doing other tasks.
This way, its working, while I'm working.

Thanks for asking.
Nate

I like it.

 

[Arnel M. Domag]

This is 4 views of the same point.
I am still amazed at what I can do with this thing. View attachment 6476 View attachment 6477 View attachment 6478 View attachment 6479
As you can see, I am down in a hole, or ravine. Plenty of tree cover.

This shot took 20 mins. Fully verified.
Nate

With that canopy, can you perform topo survey? I mean, is there a way to reduce the accuracy to 4" for example and do the RTK with speed just good enough? Thank you.

 

[Shawn Billings]

With that canopy, can you perform topo survey? I mean, is there a way to reduce the accuracy to 4" for example and do the RTK with speed just good enough? Thank you.

Not really. From my experience, the time consuming aspect of RTK under canopy is proving that the fix is good. That takes about 3 minutes or more.

 

[Arnel M. Domag]

Not really. From my experience, the time consuming aspect of RTK under canopy is proving that the fix is good. That takes about 3 minutes or more.

Thank you for your reply.

Any link showing how this is accomplished? Thank you.

 

[Nate The Surveyor]

Thank you for your inquiry.
How the Javad LS "catches" if its got the wrong initilization, is if the coord "walks" too far, during a observation.
So, short observations can yield bad shots, under canopy. It needs time, to sort out the truth.
There are some "work arounds", for topo. Distance to last, if turned on, always shows the dist, and elev diff, to the last shot.
This allows you to pace, and estimate elev diff.

However, there is an axiom.
"The harder the shot, the more prone to error".
And, some times of the day, it will be done, fully verified, in 3 min. At othet times of thr day, that particular shot may need 20 min. Or 30 min.
The sat geometry, and the environment you are working, are variables. At all times.
The Javad system has the most horsepower available today, at any price.
So, overall, it will be the most effecient, of anything today.
However, everybody is improving, and you may find happiness with a different system. I dont know everything.
But if the Javad is not the best in the woods, I'd be curious to know what is!
Think it through, and choose wisely.

Sign me, a happy Javad customer,

Nate

 

[Matt Johnson]

Thank you for your reply.

Any link showing how this is accomplished? Thank you.

Read the RTK Verification and Validation section of the Quick Start Guide (pages 46- 48). You will then need to use the Boundary Action Profile.

 

[Arnel M. Domag]

Thank you for your inquiry.
How the Javad LS "catches" if its got the wrong initilization, is if the coord "walks" too far, during a observation.
So, short observations can yield bad shots, under canopy. It needs time, to sort out the truth.
There are some "work arounds", for topo. Distance to last, if turned on, always shows the dist, and elev diff, to the last shot.
This allows you to pace, and estimate elev diff.

However, there is an axiom.
"The harder the shot, the more prone to error".
And, some times of the day, it will be done, fully verified, in 3 min. At othet times of thr day, that particular shot may need 20 min. Or 30 min.
The sat geometry, and the environment you are working, are variables. At all times.
The Javad system has the most horsepower available today, at any price.
So, overall, it will be the most effecient, of anything today.
However, everybody is improving, and you may find happiness with a different system. I dont know everything.
But if the Javad is not the best in the woods, I'd be curious to know what is!
Think it through, and choose wisely.

Sign me, a happy Javad customer,

Nate

Thank you for being very helpful. I am almost on my decision point.

 

[Arnel M. Domag]

Read the RTK Verification and Validation section of the Quick Start Guide (pages 46- 48). You will then need to use the Boundary Action Profile.

Thank you so much.

 

[Jim Campi]

View attachment 6558

Yesterday I used the LS in trajectory mode to survey 18 acres in the open from my 4-wheeler. I used zip ties and a couple of bungee cords to affix the J-Pod to the rack.

Hi Shawn, How fast were you traveling?

 

[Shawn Billings]

Not much faster than walking speed. Probably less than 10 mph.

 

[Adam]

Friday the 13th!

 

[Adam]

I found this corner about ten years ago when I worked for the man. I am back on that job today. This is in a bottom and has gotten filled in with two to three feet of silt from blown sediment basins uphill. I knew it was there and kept digging. The signal was pert near zero at the surface. If I had not been here before I may have wrote it off as Mia. Keep digging!

 

[David M. Simolo]

I take an awful lot of photos that have my boot in 'em

 

[Adam]

Here is a tough one. It took almost an hour to set this corner in a large gulley with lots of cover. Sure beats traversing though!

 

[Shawn Billings]

 

[Matthew D. Sibole]

Took about 15 min to get two good shots on this one today.

 

[Sdrake14]

 

[Sdrake14]

View attachment 7112

 

[Sdrake14]