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I am currently having difficulty trouble shooting a problem. While using a TRIMBLE GEOXH (GeoExplorer 2008 Series) I have the problem of missing data after exporting it to ArcMap from my GPS receiver. It seems my GPS receiver is NOT collecting; Elevation, Vert Prec, Horz Prec, Latitude and Longitude for some GPS points. enter image description here

How does one get this data to return??

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  • Just going over their documentation and want to clarify things. So you're opening the data in PathFinder then hitting 'Export', correct? Are you correcting the data, too? If not, it looks like they recommend going into the 'Properties' in the 'Export' window to check 'uncorrected' to send that data over. Verify if you're doing these steps to see if there is another issue. This looks based on the GEOXT, but I don't know enough to know if there is a big software difference.
    – Branco
    Commented Sep 24, 2014 at 19:58
  • In addition to above. Outline what steps you're taking right now so that someone who is more familiar with the software/process may be able to quickly identify the problem. Just saying it isn't working isn't the most helpful for troubleshooting.
    – Branco
    Commented Sep 24, 2014 at 20:00
  • Branco thank you for responding! These are the steps I'm taking. 1 Add data from GPS (GEOXH) receiver to Pathfinder. 2 Post Correction was my second step but it now fails every time I try it. It says [Unable to transfer files] 3 Export data to ArcMap.
    – Joseph Eisinger
    Commented Sep 24, 2014 at 20:23
  • @JosephEisinger Please add the steps you're taking to your question, that will make it easier to find.
    – Dan C
    Commented Sep 24, 2014 at 20:39

1 Answer 1

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Did you edit the data in that table at all? It's strange how there is one row with its lat/longs in DDMMSS when all the others (the ones that aren't blank) are in decimal degrees. Also, do the points which are missing positional data actually show up in ArcMap? Are they where they're supposed to be?

As far as the missing data, it looks like everything went fine during data collection on 2/4/2014, all those points have lat/longs, etc. But on 3/4, they don't. I suspect the Trimble is working fine but some other problem cropped up during data collection: too few satellites to get a location fix, for example, or maybe the field team didn't record enough points at each location to get a fix. You could export the file again, but modify the Export Setup to include the data's DOP values, Correction Status, and number of positions recorded to diagnose the problem.

ETA: In light of your comment that differential correction isn't working, I think that's probably the problem. If your export is set up to not export any uncorrected positions (which is the default setting, I think), and you weren't getting real-time corrections in the field on 3/4, then your features would export with no positions, and therefore no lat/long, precision, or height.

So I'd try to get differential correction working first. If it's not able to transfer base station files, you can try:

  • Update the list of Base Providers in the Differential Correction utility (under Base Data, click Select, then Update List).
  • Make sure your internet settings (or your company's internet settings) aren't blocking access to the download site or to Trimble.
  • Try a different base station.

If you want to confirm that the lack of differential correction is the problem, you can change your Export Setup to include all positions when exporting. It's under the Position Filter tab in the Export Setup Properties:

enter image description here

I believe that with all those boxes checked, you should see lat/longs for all your points in the exported file. Of course, without differential correction, they will probably be a little further away from their actual location than the corrected points.

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