TAG: Global Positioning Systems Directorate

GPS Source receives security approval for DAGR device

April 11, 2017By

GPS Source has received Global Positioning Systems Directorate security approval for its family of Selective Availability Anti-spoofing Module (SAASM)-based Host Application Equipment (HAE). GPS Source announced security approval for the Enhanced D3 (ED3) and Enhanced FLO-G (E-FLO-G) with integrated SAASM receivers. The ED3 and E-FLO-G are upgradeable versions of the popular DAGR Distributed Device (D3) and are capable of distributing SAASM today,... read more

GPS III and OCX Satellite Launch, Early Orbit Ops Successfully Demonstrated

September 13, 2013By

Lockheed Martin and Raytheon Company successfully completed the third of five planned launch and early orbit exercises to demonstrate the launch readiness of the world’s most powerful and accurate Global Positioning System (GPS), the U.S. Air Force’s next-generation GPS III satellite and Operational Control System (OCX). Successful completion of Exercise 3, on August 1, was a key milestone demonstrating Raytheon’s... read more

2C or Not 2C: The First Live Broadcast of GPS CNAV Messages

July 8, 2013By

By Oliver Montenbruck, Richard B. Langley, and Peter Steigenberger Over the past several years, some users of the GPS navigation system have already benefitted from the addition of various new signals in addition to the legacy C/A- and P(Y)-code. With the introduction of the Block IIR-M satellites in 2005, a new civil signal (L2C) was transmitted on the L2 frequency,... read more