Raytheon delivers dual-frequency sonar to U.S. Navy

NATIONAL HARBOR, Md., 17 April 2012. Raytheon Company (NYSE: RTN) completed delivery of the electronics for the AN/SQQ-90 tactical sonar suite, the complex sonar for the first ship of the U.S. Navy's DDG 1000-class multimission destroyer. The AN/SQQ-90 tactical sonar suite, a dual-frequency hull-mounted sonar of the Navy's surface fleet, will provide broad warfighting coverage to the DDG 1000.

The AN/SQQ-90 comprises the AN/SQS-60 hull-mounted mid-frequency sonar; the AN/SQS-61 hull-mounted high-frequency sonar; and the AN/SQR-20 multi-function towed array sonar and handling system. Raytheon is the AN/SQQ-90 systems integrator, bringing together the functionality of the suite's sonar system elements. Through automation and unique information management, DDG 1000's AN/SQQ-90 can be operated by one-third the crew of current Aegis platforms.

Raytheon delivered the sonar electronics pre-assembled and integrated into an Electronic Modular Enclosure (EME).


EMEs are large subsystem assemblies that package the shock mitigation, electromagnetic interference protection, thermal conditioning, security and vibration isolation for commercial off-the-shelf electronics integrated inside. The sonar electronics EME contains the assembled, integrated and tested electronics to power and control the ship's hull-mounted sonar, including the transmit/receive amplifiers and associated processors that distribute signals and data to the ship's command center.


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