Geodetic / Global Positioning Systems

Community Hub Information

Geodetic / Global Positioning Systems

GPS PROS Group Forum is for any member of LSU that is a professional land surveyor using primarily GPS in the field. Geodetic / Global Positioning Systems (GPS) Get help and offer support with survey grade GPS!

Geolocation: #gps
Members: 78
Latest Activity: Aug 24, 2018

Professional Land Surveyors Who Specialize in GPS

Feel Free to Discuss anything related to GPS in surveying and Geodetic / Global Positioning Systems (GPS) applications.

GPS Land Surveyors

Land Surveyor Forum - Community Discussions

Promark 3 GPS

Started by HAMZAT KAREEM Sep 29, 2017. 0 Replies

Virtual Reference Station

Started by Ty Olinghouse. Last reply by Jaybird Mar 3, 2013. 1 Reply

Home-Made GPS Receiver How-to

Started by ⚡Survenator⌁. Last reply by Jaybird Mar 3, 2013. 1 Reply

GPS Surveying Videos On Our Network (45)

Loading… Loading feed

Leave a Comment

Communicate ⇣

Comments Empower Your Profession!   Please Sign in or register to continue.

Reply by Jim on December 27, 2009 at 9:28pm
many of the software packages have these geoid models within them. I use foresight and it has the Geode models. I understand we have a new one now Geoid 06
Reply by Gary Breisch on December 23, 2009 at 3:03pm
Go to and see if he can help us figure this out. He or someone he knows can surely help us. keep me in the loop and let me know your progress.
Reply by ronnie r. monilla on December 23, 2009 at 2:26pm
Thank you Gary, do we have other software to process it instead of GNSS Solutions, i cannot find the LPT key of my software so the program dont open as expected. hmmmn, i really need a geoid model for saudi arabia to refine my elevations. God blessings to you and rest of family...
Reply by Gary Breisch on December 23, 2009 at 12:39pm
The Geoid thing is one on those things that I do once in a great while and forget about it till something goes wrong or that I configure a new setup. I found some notes that indicate that one can obtain the files from and determine the area by map or by region. You may have to pick from choices bracketed byh Lat/Lon from that site listings. Then use your GNSS Solutions - Tools -Geoids to open them. I just checked it and I already had a bunch of geoid files that may have been included with the GNSS program so I can extract an area out of it to keep the size down. I recall that I transferred it onto my SD card and then made sure it was selected when I used fast survey or the survey functions. I am a little foggy on it and I will have to play with it again to do it.
Reply by Gary Breisch on December 23, 2009 at 12:13pm
I will plan to look for that. If all else fails, I call my buddy Phil Stevenson with Magellan Pro.
Reply by ronnie r. monilla on December 21, 2009 at 2:11pm
hey brothers, where can i download fastsurvey (thales zmax) geoid separation files (gsf geoid model) for Saudi Arabia
Reply by Jim on November 23, 2009 at 7:26pm
looks good Marvin i have great results as well. I think many who don't are ether not certain of configuration of the components they use or they are using the wrong datum or region setup. i equally get grand results. I setup control for a surveyor with the trimble R8 and he found that i was within a 1/16 of inch as the design elevations he had generated.
Reply by Marvin T. (Buddy) Wright on November 23, 2009 at 12:02am
I use Thales ProMark 3 on every job, process my own data against CORS sites in my state, and have had very good results. Have checked on job site and have found the GPS to stay within the +/- 0.03' with good setup and location.
Reply by Antonie Kruger on November 16, 2009 at 1:19pm
Hi Gary, agreed. If you look after the simple detail, the bigger things usually falls in place. Rod bubbles....what method do you use to check the adjustment of your rod bubbles?
Reply by Jim on November 16, 2009 at 11:21am
sounds like you are my kind of guy Gary. Simple is good. I use the GPS for most all of my setups. How long are sitting on a point to get it down to digestable readings?

Where Thousands of Professional Land Surveyors, Students of Surveying and Educators are United through Collaborative Knowledge and Purpose.

Tools,Apps and Quick Guides


Help With Survey Equipment

Social Support For Equipment

Surveying Video Categories

Surveying Photo Categories

United States Hub Forums

International Surveyor Hub Forums

Resources for Company Owners

Land Surveyor Social Media

Surveyor Resources Collections

Getting Started & Newsletter

© 2019   © Created by Land Surveyors United   Powered by

Badges  |  Contact LSU  |  Privacy Policy  |  Terms of Service