Then inside of TerraSync go to your Coordinate System Settings: Select your State Plane Coordinate System, Datum, MSL and US Survey Feet. Where do I copy it to my Trimble GPS data collector to us with TerraSync (Geo 6000/7x or other data collector to be used with ProXRT or R2)?Ĭopy the Geoid12A file from your PC using “Windows or Microsoft Windows Device Center” to the following directory: Trimble Geo 7X handheld\Program Files\Common Files\Trimble\GeoData For Minnesota County Coordinate System choose: Geoid12A – Minnesota.For Wisconsin County Coordinate System choose: Geoid12A – Wisconsin.For the Lower 48 states (CONUS) using US State Plane Coordinates NAD83, NAD83 CORS96 or NAD83 2011 select and download Geoid12A Combined Conus.Wisconsin and Minnesota also have their own Geoids if you are using “ County Coordinate System”. Other Geoids are used for Alaska and Hawaii. Geoid 12A is the current Geoid for the lower 48 states. If we did not use the Geoid file with MSL “Mean Sea Level” then our elevation data would have readings as HAE – “Height above Ellipsoid”.
#Gps pathfinder office company software
Whether our workflow is to see this elevation LIVE in the field inside of Trimble TerraSync when connected to a Real-time GPS network or after Differential Correction/Post Processing via our office software (Trimble GPS Pathfinder Office). We use the Geoid in our GPS workflows when we wish to see precise measurements of elevation. Why do we use a Geoid for GPS Mapping calculations? Areas in yellow and orange have a slightly stronger gravity field as a result of the Rocky Mountains. *A depiction of the United States geoid (lower 48 states).