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Michael Denke
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GPS Surveying Question

Started this discussion. Last reply by J. Anthony Cavell Mar 6, 2016. 5 Replies

Hello, I am new to this site and do believe communication between surveyors can be a productive thing. So let me get involved by asking some questions about GPS which I have never used personally but…Read more →

Subject Tags: GPS

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J. Anthony Cavell replied to Michael Denke's discussion GPS Surveying Question
"Don't trust only one tool. RTK GPS is essentially a side-shot or radial technique. Multiple occupations help redundancy. A GPS control network is adjustable and likely more precise. A traditional traverse would be improved with cross ties,…"
Mar 6, 2016

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Michael Denke is on spot light
Feb 20, 2016
Mike Trenor replied to Michael Denke's discussion GPS Surveying Question
"Our approach: 1. Utilise independent vectors (RTK or post processed - like a double polar in conventional survey). 2. Be very aware of the "calibration" that the GNSS system is utilising. 3. For more accurate GNSS levels apply the relevant…"
Feb 20, 2016
Billy Brooks left a comment for Michael Denke
"HI Michael,This is not to check your site , This is to check your equipment .Find some  where were you can set up a triangle peg station this will mean some where in large open field as flat as you can find set controls far, but not to far that…"
Feb 20, 2016
Phil Stevenson replied to Michael Denke's discussion GPS Surveying Question
"1.  Train with your tools until you have absolute confidence in how they work.  Then remember the three words that guarantee accuracy with any measurement.  Redundancy.  Redundancy.  Redundancy. 2.  The choice of tools…"
Feb 19, 2016

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Michael Denke's discussion was featured

GPS Surveying Question

Hello, I am new to this site and do believe communication between surveyors can be a productive thing. So let me get involved by asking some questions about GPS which I have never used personally but have had crews that use it.1. In basic surveying a traverse loop is necessary and should have a good closure or be adjusted. With GPS how do you check and know that those coordinates are accurate?2. If accuracy is a great necessity would you choose a EDM over GPS? Thanks, MDSee More
Feb 19, 2016
Tyler replied to Michael Denke's discussion GPS
"We run static on all of our jobs, the only jobs we use RTK on are construction and very open jobs."
Feb 19, 2016
Dean Raynes replied to Michael Denke's discussion GPS
"Michael, There are a number of ways to improve your certainty on GPS. A simple method that I use most of the time is I set up my base at a know location. Then with my rover I shoot control points in RTK. I will then move my base to a new location…"
Feb 19, 2016

Seeking Employment
Michael Denke posted a discussion

GPS

Hello, I am new to this site and do believe communication between surveyors can be a productive thing. So let me get involved by asking some questions about GPS which I have never used personally but have had crews that use it.1. In basic surveying a traverse loop is necessary and should have a good closure or be adjusted. With GPS how do you check and know that those coordinates are accurate?2. If accuracy is a great necessity would you choose a EDM over GPS? Thanks, MDSee More
Feb 19, 2016

Seeking Employment

Welcome to the Surveying CommunityThis marks the beginning of a surveying legacy for our new Land Surveyors United member, Michael Denke. Welcome Michael Denke Your legacy in surveying will forever be remembered starting here. If it weren't for this member, we may have never known surveying culture in their corner of earth.

Feb 12, 2016

Profile Information

I am here because I am a.
Seeking Employment
Introduction to other Surveyors. One or more sentence Bio about your Relationship with Surveying
To communicate with other surveyors.
Company
Pennsylvania Venture Capital Inc
Location for Member Map
Pennsylvania
Licenses Certifications or Awards
Professional Land Surveyor - Lic #SU039395E
I have experience with the following
boundary surveys, construction staking, topographic surveys, GIS, Survey Office
How many years have you been surveying?
34
Most comfortable with the following types of instrumentation
Total Stations, Surveying Software, Old school surveying

Comment Wall (1 comment)

At 4:24am on February 20, 2016, Billy Brooks said…

HI Michael,This is not to check your site , This is to check your equipment .Find some  where were you can set up a triangle peg station this will mean some where in large open field as flat as you can find set controls far, but not to far that the angles will degrade because of the distance or other things like heat waves. (early morning best), shoot the distance from point to point with tri brackets increase your prism if you like.then turn all the angles .You can do that first if you like.Before the heat waves get to bad. Then check your distances to see if they fit the angles. If they do  not something is out on your Total Station.Once you have mathematically close this triangle, the gun should be shooting the correct distance with the angles in this triangle,Say you get the closure to, 1 in 20,000.00 or 1 in 30 or 40,000.00 , or higher, then you know it is correct.Wrong setting in the gun can affect this data. so they will also show up. Then you can check your GPS  any time you need to. this will also tell you if your total stations are in peg. If you can make these good mont.'s then you will always have a check station when you need to check if any of your equipment, is correct or not. This can be done on regular intervals . This is the angle , dist, triangle peg method .,Also on any construction site or any high precision job  it is a good rule to not assume any method is correct if you shoot with one ,check it with the other.  Also the side, angle,side method is also good to use on total station, set three points in a triangle ocpt.1 bs 2 fs 3 solve this side ,angle , side  then shoot the dist from 2 to 3 it should match the calculated distance, if not something is wrong

Have a good day Sir.

Billy

 
 
 

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