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The AN/ALR-20A Countermeasures Receiving Set is a complex electronic warfare system installed on the B-52 G and B-52 H aircraft. It consists of 11 Line Replaceable Units (LRUs) distributed throughout the airframe. Numerous modifications and upgrades of the AN/ALR-20A prevented proper configuration control of the design. Specifications for individual LRUs had never been developed. Most documentation was either incomplete or out of date, making it difficult to establish actual system parameters. Prime contractor assistance was not possible because the original development contractor no longer existed. The U.S. government contracted with Southwest Research Institute (SwRI) to analyze these support problems and other reliability and maintainability deficiencies and then develop recommended solutions for them. SwRI reviewed the available documentation and performed extensive electrical testing on the system. SwRI performed testing on the aircraft at various places, including:
The project team assembled a complete operating AN/ALR-20A system as a hot mock-up at SwRI so that the team could perform an accurate characterization of the system interfaces. SwRI identified a number of system problems and developed solutions, including:
For more information about electronic warfare countermeasures receiving set (AN/ALR-20A) capabilities at SwRI or how you can contract with SwRI, please contact Tom Untermeyer at tuntermeyer@swri.org or (210) 522-5040. We can offer you the best approach for solving your communications engineering problem.
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| Communications and Embedded Systems Department | Automation and Data Systems Division | SwRI Home | |
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Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 11 technical divisions. |
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August 15, 2008 |
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