Master Sgt. James Shearer, 28th Communications Squadron transmission system radio maintainer, adjusts the reflector rim on a new antenna for the 28th Operations Support Squadron on Ellsworth Air Force Base, S.D., Feb. 13, 2012. The antenna reflector focuses beam signals into a single point to help direct the radiating signal back to the point of origin. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)