EP-3E ARIES II JSAF Block Modernization Program (JMOD)
The second major EP-3 modernization effort is the Joint Signals Intelligence Avionics Family (JSAF) Block Modernization Program (JMOD). The JSAF program builds on SSIP connectivity to provide the EP-3E with an open-architecture, state-of-the-art collection and dissemination system capable of exploiting threat emissions beyond the year 2020. An EP-3E acted as the Department of Defense prototype for the high-band subsystem of the Joint SIGINT Avionics Family - a European Command EP-3E served as the Department of Defense prototype for the high-band subsystem of the Joint SIGINT Avionics Family. The JSAF program will provide the EP-3E with an open-architecture, state-of-the-art collection system capable of exploiting threat emissions through the year 2010. The Joint Airborne Signal Intelligence Architecture Modification (JMOD) program implemented a new architecture to meet a Joint Airborne Signal Intelligence Architecture (JASA) requirement levied on all airborne reconnaissance platforms. The architecture provides the EP-3E with the JASA infrastructure so as improved sensors are developed they are easily integrated into the system. JMOD also integrates more commercial-off-the-shelf hardware and software, and a new JASA sensor into the EP-3E. This modification supports the EP-3Es expanding role in the integrated battlefield.
The J-MOD upgrade includes the low-band (and potentially the high-band) subsystem plus infrastructure improvements and upgrades to the Story-series subsystems:
- Story Maker -— onboard sensor fusion
- Story Teller -— communications/data link upgrades
- Story Book -— special collection (pro forma) upgrades
- Story Finder —- electronic support measures
- Story Classic —- special signals
- Story Scanner —- optics collection and processing
Three JMOD block modifications are planned to keep the EP-3E ahead of the projected threat. JMOD Block 1 includes improved on-board data handling and processing. JMOD Block 2 adds a low band subsystem and improves data fusion capability including Common Data Link, which provides crucial connectivity for network centric warfare. JMOD Block 3 adds a precision targeting system. The portion of the JMOD program occurring within the Future Years Defense Plan (FY 2001–2006) is fully funded. JSAF commenced limited production in FY 2001, with one aircraft per year through FY 2002, and thereafter at a rate of two aircraft per year until completion in FY 2007.
