‘Giant Voice’ alerts base to attacks and natural disasters
Technical Sgt. Joseph Brady, NCO in charge of console operations for the Andrews Regional Command Post and 316th Wing Command Post, uses the Giant Voice machine to conduct a random test from inside the Base Operations Command Post building. The command post uses the Giant Voice for mass alert should the base come under threat of attack or natural disaster.(U.S. Air Force photo/ Bobby Jones)

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Photo by: Jones |  VIRIN: 090927-F-6072J-001.JPG