DFHBF Support (German height models)
DFHBF models help produce accurate elevations when used with GPS survey systems, in a way similar to a Geoid model. The DFHBF Download provides an updated copy of the Grid Factory utility that includes DFHBF support. This means that the Grid Factory utility must already be installed on the computer. For more information on the theory of these models, please refer to http://www.dfhbf.de/. The Trimble Grid Factory utility must already be installed. The Trimble Grid Factory utility is available as part of the Trimble Geomatics Office software and Trimble Total Control software. A readme file is included in the zip file that provides instructions on how to use the DFHBF functionality, including how to find out if DFHBF models are available in your region.