Consumer Information 3
Education 4
Guides 6
Manufacturers 269
Marine and Aviation 5
PalmPilot 2
Precision Farming 30
Shopping 131
Vehicle Tracking 177
| | Location and Tracking - Telecommunications, Business 269
Navigation - Geomatics, Earth Sciences, Science 46
Space - Technology, Science 1,665
 Australian Global Positioning Systems SocietyAustralian Global Positioning Systems Society
 A free membership society to bring together the delegates, sponsors, and exhibitors for the Satellite Navigation Conference and to foster, develop, and assist the Global Positioning System disciplines.
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Cetus GPSCetus GPS
 Navigation, tracking and field data collection software for PalmOS handhelds.
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Chartracer SoftwareChartracer Software
 Cartographic Software is for making moving maps on which GPS data from a serial port are plotted. Data are tracked remotely via CDPD modems and internet sites.
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David L. Wilson's GPS AccuracyDavid L. Wilson's GPS Accuracy
 A discussion of horizontal and vertical errors including uses of HDOP to estimate and improve horizontal error.
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GENESISGENESIS
 Suite of data services that brings together the new Earth science products to be produced by spaceborne Global Positioning System (GPS) receivers. It serves mainly as a database for GPS occultation observations.
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The Global Positioning System: The History of GPSThe Global Positioning System: The History of GPS
 The history and story of how the Global Positioning System evolved from the development of the world's most accurate timepieces, atomic clocks, by physicists looking into the nature of time. Adapted from an article written by MIT scientist Daniel Kleppner.
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GPS ActiveXGPS ActiveX
 Download information into a Visual Basic application or web page. Garmin, Magellan, Navman or any NMEA 0183 enabled GPS supported. UTM, SPCS, British National Grid, and most other national coordinate systems supported. [Windows and Pocket PC].
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GPS by GlobespotterGPS by Globespotter
 GPS education, news, hardware, software, and links. Digital mapping.
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GPS Clocks for Computer Time SynchronizationGPS Clocks for Computer Time Synchronization
 Learn about how to use GPS for computer time synchronization. We offer a GPSClock (for computer use) that's accurate to a millionth of a second. Ideal for running a stratum one NTP server.
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GPS Deformation MonitoringGPS Deformation Monitoring
 Objective is the development of a system for rapid and inexpensive monitoring of unstable slopes, such as pit walls, earth\rock slopes and dam walls using global satellite positioning technology.
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GPS Discounts for EducatorsGPS Discounts for Educators
 GPS special pricing for Trimble GeoExplorer 3 and ProXR/XRS educator kits. GPS education and training courses. Tutorials to learn about the GPS system. GPS consulting and course development.
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GPS InformationGPS Information
 Mehaffey, Yeazel and DePriest's site provides dozens of reviews and technical articles on GPS receivers and software, and a huge list of links.
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GPS KwajaleinGPS Kwajalein
 GPS Ground Station on Kwajalein Island, photographs of the island and site. Links to others GPS sites.
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GPS Precise OrbitsGPS Precise Orbits
 Global Positioning System satellite ephemerides ("orbits") information for the general public, from US NOAA. GPS precise orbits are derived using 24 hour data segments from the global GPS network. An informational summary file is provided to document the computation and to convey relevant information about the observed satellites, such as maneuvers or maintenance. Orbits generally are available 2 to 6 days after the observation.
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GPS Site from Univ of TexasGPS Site from Univ of Texas
 Global positioning system overview and bibliography.
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GPS Status Information from US Naval ObservatoryGPS Status Information from US Naval Observatory
 Via ftp.
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The GPS Waypoint BaseThe GPS Waypoint Base
 Non-commercial project allowing the collection or submission of GPS waypoints.
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Hyperbolic Positioning AlgorithmHyperbolic Positioning Algorithm
 An algorithm for obtaining an exact solution for the three dimensional location of a mobile given the locations of four fixed stations (like a GPS satellite or a base station in a cell) and the signal time of arrival (TOA) from the mobile to each station. From Ralph Bucher.
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Internet-based Global Differential GPSInternet-based Global Differential GPS
 C-language software package for GPS-based real-time positioning and orbit determination. Includes system overview, technical papers, and a live demo .
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The National GPS NetworkThe National GPS Network
 Resource from the UK Government intended for GPS-equipped surveyors, and Geographic Information Systems (GIS) developers who work with Ordnance Survey (OS) mapping. Includes the Passive Station Database, Active Station RINEX Data, and Coordinate Converter services.
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Outdoor Gear ReviewsOutdoor Gear Reviews
 GPS receiver comparisons.
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RLA GeoSystemsRLA GeoSystems
 Source for GPS information and training. Trimble ProXRS and GeoExplorer3 receivers, top 10 websites, GPS for educators and free help.
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Satellite Navigation and Positioning Group (SNAP)Satellite Navigation and Positioning Group (SNAP)
 SNAP is Australia's largest academic GPS research group specialising in high precision GPS technology and applications.
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Septentrio Satellite NavigationSeptentrio Satellite Navigation
 Dual frequency GPS and GLONASS, as well as EGNOS, WAAS and MSAT based on an in-house single baseband processor.
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Travel by GPSTravel by GPS
 Downloadable free GPS maps for travel adventures, self-guided tours, and outdoor activities. Map data includes waypoints and routes for use with handheld GPS and car navigation systems.
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USCG Navigation CenterUSCG Navigation Center
 GPS, DGPS, LORAN-C, OMEGA, navigation systems, GPS navigation, DGPS navigation.
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Wayhoo.comWayhoo.com
 Database of geographical waypoint information and utilities for GPS/GIS users.
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Wing Way SystemsWing Way Systems
 Navigation-Wonder, a shareware GPS mapping navigation software including voice response system [Windows].
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