Mapping and GIS Solutions Community

Hello, I have the DA2, TMM, and my ESRI Field Map set up in out IOS Tablet. Everything is working. I have within 2 feet of accuracy with our Catalyst subscription and the Field map will take a GPS point. However, it says "cannot find Geometry" when I submit the GPS point. I set the TMM up from the instructions to: Detection Mode-AUTO (Trimble Correction Hub) & GNSS Output-NAD83 (2011) (EPOCH 2010) & Geoid-GEOID18 (CONUS).  Our Field Map was created in Our Enterprise Portal & we use NAD 1927 STATE PLANE Florida West FIPS 0902. Can anyone let me know what I am doing wrong? Do we need to set our State Plane somewhere? In the Field Map Profile? Change it in the TMM? The Filed Map is set up as: GNSS COOR. SYSTEM-GCS NAD 1983 2011 & MAP COORDINATE SYSTEM WGS 1984 WEB MERCATOR AUXILLARY SPHERE & DATUM TRANSFORMATION- WGS_1984_(ITRF08)_To_NAD_1983_2011. Please help.

Kevin,

What's wrong is ...." sic.  Our Field Map was created in Our Enterprise Portal & we use NAD 1927 STATE PLANE Florida West FIPS 0902".   There is nothing Trimble or anyone can do when your using modern positioning methods and a datum based on the Clarke 1866 (yes, that is the year) ellipsoid and a datum from the year of our lord 1927.  That coordinate system is based on a point in Meades Kansas.  You could do some online searching with the term "NAD27 and NGS" and you will quickly find your asking the impossible.   Your using a state of the art positioning system (DA2) and satellites overhead that are not going to get you results even close to your instrumentation and curated data in a modelled shape of the earth from 150 years ago!   Time to have a very hard sit down with your GIS folks.    Up here in Alaska, we held on way too long to NAD27.  Even NAD83 (1986) the second US Datum is not to be used today for TAGGING data when ingesting data from space.   Its time to say goodbye to NAD27, like 30 years ago.   Sorry.

The challenge is normally one uses NADCON shift files to convert from NAD27 to NAD83 and your Enterprise Portal, assuming the Portal admins have it set up correctly, handle this in the on-the-fly transformations. Your mobile unit isn't apparently configured with the proper files to do the on-the-fly transformations locally. 

I would suggest you to get them to set your Field Map basemap datum to be NAD83 (2011) Florida State Plane instead of NAD27 so that you collecting and storing data in NAD83 rather than NAD27 and let the Portal handle the transformations instead when people are visualizing the data?

If you're trying to lay stuff out, get them to provide layout coordinates referenced to NAD83 instead of NAD27. 

That, or get them to set your unit up so you can do on-the-fly-transformations in your handheld device.