If your SurvPC or SurvCE* program is missing the Continental_US_NGS2018.gsb, you can download the file in the
"Attachments" section at the bottom of this article and copy this file into your data collector in the "/Program
Files/SurvCE/Data/Geoids" or "C:/Carlson Projects/Data/Geoids" folder
***You will need to rename the file extension of the ContinentalUS geoid to *.grd to use it in the older Version 5.09 so
it will load properly
*Only SurvCE 5.09 and higher will work with the Continental US Geoid. If you are running SurvCE version
4.07 or older, you will need to create your geoid grid through Carlson
Survey or Carlson
Xport.
GEOIDS in SurvPC are loaded into Carlson Projects/Data/Geoids
GEOIDS in SurvCE are loaded into Program Files/SurvCE/Data/Geoids