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GPS Next-Generation Operational Control System (OCX) Follow-On (OCX 3F). The OCX 3F program is further future iteration of the GPS Enterprise Modernization effort. OCX comes in four blocks: 0, 1, 2 and now 3F. Only Block 0 is currently operative, though it does not “fly” the constellation, it only handles Launch and Early Orbit (LEO) operations and the on-orbit checkout of all GPS III satellites. I has done so for four GPS III satellites so far. A fifth launch is due in June. [Photo: GPS ground antenna at Schriever Air Force Base, home of the 50th Space Wing. Courtesy Raytheon] Currently, all GPS satellites are controlled by the Operational Control System (OCS), which Lockheed Martin sustains until 2025, when OCX will start taking over. OCS now flies the more powerful GPS IIIs as well as older satellites and tasks, uploads and monitors the encrypted M-Code signals. ....
Raytheon Receives $234M for Future Military GPS System Our Bureau 1603 Raytheon won $234 million from the U.S. Air Force for Next Generation Operational Control System Block III follow-on. This contract will provide updates to the Next Generation Operational Control System (OCX) Block 1 and 2 ground system to incorporate Global Positioning System Block III Follow-on (GPS IIIF) satellite capabilities, a U.S. DoD release today said. OCX will command all modernized and legacy GPS satellites, manage all civil and military navigation signals, and provide improved cybersecurity and resilience for the next generation of GPS operations. According to Raytheon, GPS OCX will have improved accuracy with better international availability as well as globally deployed modernized receivers with anti-jam capabilities. ....