NH GRANIT GPS Standards
ProXRS GPS Unit
The NH GRANIT GPS Data Collection Standard was developed based upon the needs of GRANIT's projects, and they reflect the GPS units and software currently being used by project staff. They should not be assumed to apply to every project or every system. NH GRANIT strongly advises users to review the standards document, and augment and/or modify it developing specific standards to reflect the specific type of data they are collecting and their anticipated usage of that data.
NH GRANIT makes every effort to use correction data from the closest base station available. Currently, the primary base stations used include NH Department of Transportation, University of New Hampshire, and Vermont Agency of Transportation. A list of over 2000 base stations throughout the world can be found on the Trimble website.
Hardware and Software
NH GRANIT uses Trimble ProXRS systems with Asset Surveyor v. 5.10. These are mapping grade units with the capacity to receive real time correction, and to collect, store and transfer data. Pathfinder Office v. 2.70 is used to transfer data to and from GIS applications and to post-process any points collected without real time correction.