Protected Tactical Service (PTS)

Protected Tactical Service (PTS) develops protected, beyond-line-of-sight satellite communications for tactical warfighters under the Space Force Research, Development, Test & Evaluation appropriation, Budget Activity 4, Advanced Component Development and Prototypes. Its anti-jam (AJ), low-probability-of-intercept service is intended to sustain communications near adversarial jammers and in contested anti-access environments. A distributed architecture of hosted payloads and free-flying satellites uses onboard signal processing, antenna design, and beam-forming to improve resilience and operational reach.

PTS is the disaggregated tactical successor to Advanced Extremely High Frequency communications. It uses the Protected Tactical Waveform (PTW) alongside Protected Tactical Enterprise Service (PTES), which supplies mission-management and cryptographic key-management infrastructure. PTS comprises space, ground command-and-control, and gateway segments; gateways give users reach-back to the global defense information network. The military services, rather than this acquisition, procure user-terminal PTW modem upgrades, including those enabled by the Air Force Army Anti-Jam Modem and Navy Wideband Anti-Jam Modem System.

Protected Tactical SATCOM Global (PTS-G) addresses protected-communications gaps identified by the Space Warfighting Analysis Center's 2022 Force Design and the Joint Space Communications Layer Initial Capabilities Document. Space Systems Command is developing proliferated, lower-complexity military Ka-band and X-band satellites to provide moderate assured access between the more focused PTS-Resilient capability and less-assured existing or commercial services. Initial service targets selected regions, with worldwide coverage as the objective. PTS-G also supports legacy SATCOM waveforms and PTW, while its controllers, gateways, anchor stations, and Joint Hubs connect to PTES management systems.

For FY 2027, PTS-G funding continues satellite production, hardware procurement, bus-and-payload interface checks, and early integration. It also supports ground command-and-control interface checkout, Joint Hub delivery, and reviews of anchor-station facilities for required changes. An initial design-and-demonstration order involved Astranis, Boeing, Intelsat, Northrop Grumman, and Viasat; separate X-band and Ka-band production efforts follow. The acquisition plan calls for an initial four payloads to support initial operational capability in FY 2029 and a later four space vehicles for full operational capability in FY 2031.

Protected Tactical SATCOM funds the prototype and resilient-capability path. The initial PTS Prototype (PTS-P) used Middle Tier of Acquisition rapid-prototyping and Other Transaction Authority to deliver modular AJ payloads; Boeing's hosted payload and Northrop Grumman's free-flyer were selected after competitive design work. FY 2027 supports launch-related integration, initial checkout, on-orbit demonstration and testing, software and ground maturation, training materials, and operational testing for early warfighter use.

Enhanced PTS-Prototype is an additional free-flying satellite intended to deliver incremental AJ capability and a "hub in space" with signal processing and switching for direct connectivity between users. Following a June 2025 acquisition decision, the program shifted effort from PTS-Resilient source selection to this prototype; PTS-Resilient engineering and manufacturing development is deferred until FY 2028. FY 2027 activities include a critical design review, payload and bus manufacturing and testing, testbed-supported modeling, long-lead-item integration, and modifications connecting the vehicle to enterprise ground systems. Launch is planned for FY 2029.

Space Hub End Cryptographic Unit (ECU) funding addresses a critical-path security risk by developing a space-qualified, production-ready unit for National Security Agency certification. FY 2027 work advances certification documentation, delivers engineering models for payload integration, resolves prototype discrepancies, updates an obsolescence-affected computer board, and conducts environmental, electromagnetic-interface, and TEMPEST testing. The effort also provides rapid troubleshooting during PTS-P on-orbit tests.

PTS-P/R Ground Development modifies PTES Mission Management and Key Management Systems to plan protected links, manage cryptographic material, and ultimately replace manual prototype mission management with autonomous operation using certified keys. FY 2027 funds interface-tool development, on-orbit-test support, and integration and validation against the PTES baseline. PTS-P Gateway Development relocates two prototype Ground Entry Terminals to overseas sites, checks their payload connections, and procures two more gateways with antennas and digital cores for the enhanced vehicle.

Protected Tactical Testbed provides the government's PTW and key-management reference across space, ground, and terminal developments. FY 2027 supports interoperability testing across military and commercial orbital systems, testbed updates, a key-management prototype, and Temporary Operational Prototype Hubs for limited early users. Technical Baseline Management, System Integration and Test Support maintains interfaces and end-to-end testing across those segments, supports prototype launch and early-use modifications, and reduces integration risk with PTES.