Photo by Airman 1st Class Ashlee Galloway | Joint Base Charleston | 10.16.2012
Senior Airman Dawne-Kortnye Knox, 437th Maintenance Squadron Precision Measurement Equipment Laboratory Calibration technician, calibrates a 4391M Watt Meter Oct. 16, 2012 at Joint Base Charleston - Air Base, S.C.. The watt meter is capable of reading 200 watts and 400 megahertz. (U.S. Air Force photo/Airman 1st Class Ashlee Galloway)...