Spatial -

NOAA Datums Videos 2014

Differential correction with NA2011 and the newest epoch of NAD83

See our and Datums Basics and GPS Tutorials for the long-awaited results of months of rigorous testing and peer review

Trimble Positions software has replaced Trimble GPS Analyst in ArcGIS 10.1

ALASKA GPS and GIS users - check out Joel Cusick's Datum and Projections presentation Feb 2013

ArcGIS 10.1 - New and Cool improvements see Presentation from Melita Kennedy, ESRI : Projections and Datums Dec 2012

Home GPS Links
GPS Resources
Display # 
# Web Link
1   Link   The Importance of Accuracy, Michael Dennis
If you are thinking, 'I don't need my data to be THAT accurate' - think again. READ THIS PAPER!
2   Link   Real-Time Correction Source Datums, Trimble
WAAS, NDGPS and other real-time correction sources

NOTE: nDGPS is now broadcast in NAD83(2011)
3   Link   EPSG Geodetic Parameter Dataset
Dataset of Coordinate Reference Systems and Coordinate Transformations
4   Link   Trimble Delta Phase Technology
Post-Processing engine release 2009
5   Link   GPS Receivers Compared, EDS
GPS Receivers and Windows CE Mobile Devices compared
6   Link   National Park Service, GPS Resources
For all GPS and GIS users
7   Link   ArcPad and TerraSync Compared, EDS
Data collection software packages compared
8   Link   Why post process GPS data? Trimble
Differential Correction basics - short and sweet!
9   Link   Mapping Products Compared, Trimble
Which Trimble unit is right for your project?
10   Link   Trimble White Papers
Recreational and professional grade GPS receivers, H-Star technology explained and more.
11   Link   Trimble GPS Resources
Almanac files and base stations listings and more
12   Link   All about GPS, Trimble
How GPS works