Space Force Orders GPS OCX To Replace Computer Hardware | Aviation Week Network
GPS ground system gets cybersecurity upgrade as OCX faces new schedule setback - SpaceNews
GPS.gov: Next Generation Operational Control System (OCX)
OCX On Track, Says Raytheon; Begins New Upgrade - Breaking Defense
GPS Backups/ Alternatives Too Hard & Costly? - GPS OCX delayed again, now at $6.1B - RNTF
Air Force's First GPS III Satellite Receives Commands from OCX Ground Control Segment - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design