January 19, 2010 The New GPS 24+3 Constellation: What Does it Mean to the Surveying and GIS User? By Eric Gakstatter
November 3, 2009 What’s the Difference between a Used Car Salesman and a GPS Salesman? By Eric Gakstatter
October 6, 2009 “What Can GLONASS, GPS L2C, and GPS L5 Do for You?” Webinar Q&A Follow-up By Eric Gakstatter