Joint-Range Extension (JRE)
Joint-Range Extension is a hardware and software system that receives information transmitted on a tactical data link in a particular area of operations and forwards that information to another tactical data link terminal beyond the line of sight.
With JRE in the field, the impact on access to situational awareness data and time-critical targeting is dramatic. A B-2 Spirit bomber taking off from Missouri can receive real-time data from the battlefield half way around the world. Throughout its approach, the B-2 crew can receive updates on weather information, location of friendly forces and other data that would otherwise be available only after the aircraft arrived in the target area.
As tactical data link technology evolved throughout the 1990s, increasing information was available to warfighters both in the air and on the ground. But that information was only accessible within the tactical data link transmitters' roughly 300-mile range, and none of the various data links were interoperable with the others -- negating much of the information's value.
JRE was developed to function in this situation much like a router commonly used in home and business computer networks, he said. JRE gathers information between the various air, ground and sea forces operating in a given area and routes that information across the different data links, effectively creating a wide-area network. It also takes information and transmits it to other routers, linking together other networks much in the same way the Internet links the entire globe.
In the future, the ground-based JRE will work in concert with the Roll-on Beyond Line of Sight Enhancement system, or ROBE, which provides tactical data link information to and from KC-135 Stratotankers acting as aerial relays.
JRE systems were used during operations Iraqi Freedom and Enduring Freedom.
Joint Range Extensionprovides multipoint interoperability, beyond line of sight (BLOS) TADIL-J connectivity between Link-16 networks and C2 nodes. JRE provides multiple TADIL-J message transport protocols adaptable to various communication media. These Protocol's can be utilized by both legacy and developing systems. Titan's JRE system has successfully demonstrated the ability to extend the range of Link-16 networks beyond the line of sight limitations of JTIDS/MIDS terminals, thus reducing the loading and dependency on airborne relays. JRE also has the ability to send Link-16 (J series) messages over non-JTIDS/MIDS media and bypass airborne relays.
JRE routes the full TADIL-J message set - Rx, Tx, and
fwd for J-to-J connectivity. JRE's multimedia redundancy ensures that messages get where they need to using any of JRE's links. Powerful link filtering tools - provides
J link filtering on both the transmit and receive sides.
All J messages can be GPS time-tagged and position extrapolated. JRE Supports up to 8 simultaneous long haul links. JRE is GUI based, requires minimal
operator training and has contextsensitive,
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