A prototype threat emitter system is set up Jan. 17, 2020, at Luke Air Force Base, Ariz. The team that designed the low-cost, mobile emitter system prototype, two 56th Operations Support Squadron Airmen and an Arizona State University student, is one of six teams to compete in the Air Force’s Spark Tank competition, Feb. 26-28, 2020. (U.S. Air Force photo by Airman 1st Class Leala Marquez)
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