Aurora Solutions - The accuracy of civilian GPS devices is greatly improved (from 100 meters to 20 meters) as the U.S. government removes Selective Availability from its Global Positioning System. #aurorasolutions #softwaredevelopment #
GPS (Part 1) - Structure, mode of operation, technical and physical fundamentals of GPS - Marine-Pilots.com
GPS ERROR SOURCES
GC3HYWV Selective Availability - a HIDDEN tribute! (Unknown Cache) in Manitoba, Canada created by ernie&bert&elmo&grover
GPS.gov: Selective Availability
GPS Accuracy With and Without Selective Availability | Time and Navigation