Master Sgt. James Shearer, 28th Communications Squadron transmission system radio maintainer, mounts and fastens a new helical antenna to a AM-1 mount used by the 28th Operations Support Squadron at Ellsworth Air Force Base, S.D., Feb. 13, 2012. The 28th OSS uses the antenna for joint range extension capabilities, to send and retrieve information via satellite. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)