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- Scalable Agile Beam Radar (SABR)
- SCORPION™ Unattended Target Recognition Systems by Xetron
- SCOUT Multi-Mode Radar System
- Signal Measurement System (SMS)
- Signature Augmentation System (SAS)
- Simulation & Training Technologies (S&TT)
- SIRU™ Inertial Reference Unit for Space - Core
- SIRU™ Inertial Reference Unit for Space - Dual
- SIRU™ Inertial Reference Unit for Space - Scalable
- Space-Based Infrared System (SBIRS)
- Sperry Marine Integrated Bridge System (IBS)
- Sperry Marine Military Integrated Bridge System (IBS)
- STARLite™ Synthetic Aperture Radar (SAR)/Ground Moving Target Indication Radar
- SteerMaster Control System
- Suite of Integrated Sensors & Countermeasures (SISCM)
- SureCAL® Calibration Software
- Synchronization & Control System (SCS)