Download Using Geoid Files With SurvCE
Using Geoid Files with SurvCE 1. Download and/or install either Carlson X-Port or SurvCOM to the desktop computer. 2. Download and/or install “CarlsonGeoidGrids.exe” to a location on your desktop computer (Typically installed to the “…\Program Files\Carlson XPort\” directory). 3. If you have Microsoft ActiveSync already installed on your computer, make sure that it is not currently occupying the COM port. To do this: Launch ActiveSync and select “Connection Settings” from the “File” menu. Remove the checkbox that refers to the port you intend to use with Carlson X-Port (Typically uncheck COM1 as shown below). Select OK to exit “Connection Settings” and close ActiveSync. 4. Connect your handheld device to your desktop computer using a serial cable. 5. Run SurvCE on the handheld device and select “Data Transfer” from the “FILE” tab as shown below. 6. From within the “Data Transfer” dialog, select the “SurvCADD/Carlson Survey Transfer” option as shown below. 7. Leave the data collector waiting for communications as shown by the resulting “File Transfer” dialog below. 8. Launch either Carlson X-Port or SurvCOM from your desktop computer. If you are using Carlson X-Port, select “SurvCE/SurvStar/G2” from the “Tools” menu to launch SurvCOM. 9. From within SurvCOM, and while connected to the handheld computer via a serial cable, you should be able to see the contents of the handheld device on the right and the contents of the desktop computer on the left simultaneously. If you do not see the handheld device on the right, you are not connected. 10. Select the “Geoid” icon located at the bottom of the SurvCOM dialog. 11. From within the “Set Geoid Area” dialog, verify the path to the geoid files is set to the installed location of these files as defined in step 2 of this document (Typically “…Program Files\Carlson X-Port\”). 12. Select the desired geoid model to extract an area from. 13. Key in the approximate latitude and longitude of the center of the area. 14. Define the grid size for the area you want the model to cover (Supported sizes are 50-250 miles, 80-400 kilometers and 1-5 degrees). 15. Name the geoid model with any name that you want (e.g. geoid). You may want to name this file with a logical name for the location of the area for future reference (e.g. geoid-LA). 16. Select the “OK” button to automatically transfer the file to the “…\Survstar\” directory of the handheld device. A copy of the file will also be created on your desktop computer in the currently selected folder. 17. If you are running SurvCE version 1.X on the handheld device, select “Job Settings” from the “FILE” tab and view the “GPS” tab as shown below. If you are running SurvCE version 2.X on the handheld device, select “Localization” from the “Equip” tab and view the “GPS” tab as shown below. 18. Select the “Geoid Separation File” button and choose the geoid file you created and transferred with SurvCOM. 19. You have now completed the definition and selection of the geoid file. Select “OK” to exit the “Job Setting” dialog.