GPS

• The Telson Spur: Field Nodes -- Earth (2): Earth History & Geography (has a GPS related section)
• How GPS Works (Clear, simple description; trimble.com)
• Garmin GPS Cables
• GPS Receiver Information, Software, and Hardware Reviews of Garmin, Lowrance, and Magellan GPS Receivers (gpsinformation.net: Joe Mehaffey and Jack Yeazel's GPS Information Website - very informative!)
• Global Positioning System Overview (Peter H. Dana, Department of Geography, University of Texas at Austin; Lots of good info - more technically oriented)
  • GPS Week Number Rollover Issues
• GPS Waypoint Registry ("dedicated to Collecting and indexing of GPS waypoints")
• Garmin GPS Receivers - Handheld (Commercial source - describes units well)
• Free GPS Software (GPSS)
• GPS World (Some content from GPS World magazine)
• Sam's GPS raw data pages (Test results)
• DeLorme | Street Atlas USA (GPS compatible laptop software)
• View from Satellite
• GARMIN International
  • GPS 12XL
  • GARMIN User's Manuals
• The GPS Resource Library (Karen Nakamura, Yale)
  • The Global Positioning System FAQ
  • sci.geo.satellite-nav web resources list
• USCG Navigation Center GPS Page
• Date Change for Satellite System May Cause Trouble (NY Times, August 16, 1999; about coming GPS date rollover)
• Resetting of GPS Systems Leads to Some Problems in Japan (NY Times, August 23, 1999; about GPS date rollover results)
• Global Positioning System (GPS) Program (from NASA - lists details on satellites)
• GPS.gov (They manage the Global Positioning System)
• NextBus (GPS monitoring of public transit systems)
• White House Press Release: STATEMENT BY THE PRESIDENT REGARDING THE UNITED STATES' DECISION TO STOP DEGRADING GLOBAL POSITIONING SYSTEM ACCURACY
• Geocaching - The Official GPS Cache Hunt Site
• NIST Global Positioning System Data Archive (compares accuracy of GPS time with atomic clock time)
• ROG: The Longitude of Greenwich (addresses the question "why does a GPS receiver operated on the zero meridian at Greenwich indicate a longitude differing by about 100 metres from zero?")
• GPS Safety ("With the latest in-car electronics, you can get there from here safely" -- The Car Connection)
• GIS Data Depot (Free GIS Data)
• USChart SmartChart (5161 - Newport to Bermuda)
• Using Nautical Charts with Global Positioning System (maps may be less accurate than they appear)
• U.S. Naval Observatory (USNO) GPS Operations
• GLOBE Project (Global Land One-kilometer Base Elevation)
• Vulnerability Assessment of Transportation Infrastructure Relying on GPS (Volpe Center)
• Transportation pledges to secure Global Positioning System (Government Executive Magazine - 3/8/02)
• Mathematically Random Trips (Samuel Mintner was featured on the PRI show, The Savvy Traveler, because he randomly picks vacation destinations, then uses his GPS to get there. Go to his "Trips" page.)
• GPS Drawing ("All the drawings have been made by actually traveling along the shapes and recording the tracks using satellite navigation technology")
• Garmin First to Navigate PDA Market with GPS-Enabled Handheld
• Homemade GPS jammers raise concerns (Computerworld)
• Low Cost and Portable GPS Jammer (The atrticle Computerworld was talking about from www.phrack.org)
• Covert GPS Vehicle Tracking Systems LLC (what phrack claims they are fighting)
• TravelEyes2 (another vehicle tracker -- more afforadable -- with real time tracking)
• the Degree Confluence Project
• Geocaching With Navicache
• New Jersey Geocaching Association
• Buxley's Geocaching Waypoint
• How accurate is the TIME DISPLAY on my GPS? (info on this page confirmed to me in email by sales@garmin, 3 Jul 2000)
• Global Positioning System Primer

• GPS links from Yahoo!