...from a government systems integrator for modems with DoubleTalk® Carrier-in-Carrier® bandwidth compression. The U.S. military will use the modems in deployable terminals to support a satellite-based network expansion for battlefield communications. The order specified the DMD2050 MIL-STD-188-165A Compliant Universal Satellite Modem. The DMD2050 supports the widest possible range of U.S. government and commercial standards. It provides highly advanced and bandwidth-efficient forward error correction and a complete range of modulation types. Given the U.S. government’s IP-centric focus, advanced options for the DMD2050 were included in the order, including DoubleTalk Carrier-in-Carrier bandwidth compression and Low Density Parity Check (“LDPC”) forward error correction.
DoubleTalk Carrier-in-Carrier, based on Raytheon Applied Signal Technology’s patented “Adaptive Cancellation” circuitry, allows transmit and receive carriers of a duplex link to share the same transponder space. DoubleTalk Carrier-in-Carrier is complementary to all advances in modem technology, including advanced forward error correction and modulation techniques. As these technologies approach theoretical limits of power and bandwidth efficiencies, DoubleTalk Carrier-in-Carrier, uses advanced signal processing techniques, provides a new dimension in bandwidth efficiency. When combined with LDPC, it will provide unprecedented savings in transponder bandwidth and power utilization for the U.S. military. This will enable successful deployments in both bandwidth-limited and power-limited environments.