Includes lessons on GPS signal, Biases and solutions, receivers and methods, geodetic datums, State plane coordinates, Global Navigation Satellite System (GNSS)

An overview of GPS as a satellite navigation system including information on the space, control, and user segment; GPS satellite signal; GPS data; Position and Time from GPS; GPS Error sources; Differential GPS techniques; GPS techniques and project costs

This online educational content provides an overview of GPS concepts including data quality, error, uncertainty, and components of the Global Positioning System (GPS).

Site provides information for the general public, media, Congress, international organizations, professionals, and students on gps, included latest news features on gps, multimedia, and commonly asked questions

This site includes an overview of GPS, including the space, control, and user segment, GPS services, accuracy, and future of GPS

An overview of how GPS works, accuracy of GPS, the GPS satellite system, GPS signals, GPS signal errors, along with links to applications, glossary, WAAS (Wide Area Augmentation System), and geocaching

Provides access to downloadable basemaps for GPS Units

An overview of factors related to global positioning system units for navigation in cars and portal devices

Chart of Garmin handheld GPS units related to items, such as display type, size, battery life, preloaded maps, ability to add maps, electronic compass, geocaching, waypoints, tracking points, price

-Opensource tool to transfer data between GPS receiver and GIS application

-Tool in ArcMap to convert GPX files from GPS units to feature layers

-Tool used for post-processing of GPS data (cost associated with this software)

-Opensource tool used to convert GPX files to other formats