National Center for Geographic Information and Analysis

This unit’s overview of Global Positioning System (GPS) data includes sections on GPS equipment and definitions, accuracy considerations, project preplanning, collecting and correcting data and exporting data. Procedures for a sample implementation, using GPS to collect utility data, are described using Pathfinder Office software to create a new project and data dictionary, transferring the data dictionary to a datalogger, using Quick Plan software to preplan data collection, using the ProXL Datalogger to collect data, downloading the data to a PC, differentially correct the data using base station data, and exporting the results to ArcView.