Surveyor's dogs love Javad

[Sean Joyce]

This is Chloe. She loves the woods. She would rather be hunting and following her nose than eat.
Chloe loves Javad and the T2 LS RTK system because she can spend more time in her favorite place.

 

[Javad]

Nice photo. Sean, why to you mount LS so high?

 

[Sean Joyce]

Nice photo. Sean, why to you mount LS so high?

Javad;
This is a real problem spot to get the pin by that tree. When I took the picture I had raised the rod to see if I could get less interference. The site is surrounded by large trees with an up slope to the south. I have noticed that sometimes it is a matter of a few feet getting fixes in the woods.
It didn't help in this case.

 

[Javad]

Try to move away from the tree and when it is fixed come back to the spot and start it. See if it helps.

 

[Matt Johnson]

The CoGo Resection function works great locating pins at the base of a tree. Here is an example of from yesterday when I surveyed a pin right at the base of a tree:

I surveyed 3 points around the pin, about 6' feet offset from it. While each of the surrounding points is being surveyed I use a tape measure to measure the offset distance between the pin and the middle of the rover pole. I then store the offset distance in the point description for each point. Next, just Resection to calculate the coordinate of the pin.

 

[David M. Simolo]

The CoGo Resection function works great locating pins at the base of a tree. Here is an example of from yesterday when I surveyed a pin right at the base of a tree:

View attachment 4227

I surveyed 3 points around the pin, about 6' feet offset from it. While each of the surrounding points is being surveyed I use a tape measure to measure the offset distance between the pin and the middle of the rover pole. I then store the offset distance in the point description for each point. Next, just Resection to calculate the coordinate of the pin.

This makes better sense than the process I do manually, which is essentially the same but not near as streamlined--I've been storing offsetted shots with the dimensions and cardinal directions in the description and then manually doing the intersections. Thanks Matt. I know there are many gifts hidden in the software I have yet to discover.

 

[Nate The Surveyor]

I did that 3 way, distance distance resection the other day.

I did it in the field, in sequence.
Shot the points, measured the distance, just like that, for all 3.
Pretty cool!

 

[toivo1037]

If you have a very difficult situation you can also use that procedure when setting a corner.

With my older system I would perform the following:

• 1 Backpack everything in, and get close to the set position with a handheld GPS.
• 2 Setup the survey GPS, and then get closer with a higher rod, usually only getting a float solution.
• 3 Cut a crop circle in the trees to get some open sky.
• 4 Put up the survey GPS again, and get a point that is fixed, (usually if you move alot trying to set the corner it would go float - or you just could not get a fix at the exact corner position, but get a fix some 6-10 feet away)
• 5 Shoot 3-4 spikes with a fixed solution surrounding the corner position.
• 6 Measure between the spikes and check their inverses to make sure you don't have a bad shot.
• 7 Then COGO the spikes to the set corner position, and 3-4 tape the distances in, and set the corner with swing ties.
• 8 Static the corner position to double check set location.

This procedure works well for me when the corner is up next to a tree you don't want to cut, or if you are having trouble getting fixed. Granted, since I got the T-1Ms I have not had to do this, but know I will again someday. Using that procedure I would always be able to get within a tenth, and then static the corner while I am blazing and scribing witness trees. If somebody can measure better then a tenth a half mile back in the swamp, and wants to call me wrong, then well - have at it cause they are a better man then I.

 

[Jim Campi]

The CoGo Resection function works great locating pins at the base of a tree. Here is an example of from yesterday when I surveyed a pin right at the base of a tree:

View attachment 4227

I surveyed 3 points around the pin, about 6' feet offset from it. While each of the surrounding points is being surveyed I use a tape measure to measure the offset distance between the pin and the middle of the rover pole. I then store the offset distance in the point description for each point. Next, just Resection to calculate the coordinate of the pin.

How do you obtain the elevation of P4?

 

[Sean Joyce]

I would think this is for a 2D location unless you had a pocket rod and hand level to fanagle an elevation on P4. I locate bldg corners like this and make a note about the elevation relation to the surveyed point(s)