Airman Training Air Force Airman 1st Class Quanah Roberts, a 316th Training Squadron student, wears a mask and practices social distancing while attending the in-classroom portion of his Apprentice Electronic Signals Intelligence Analyst Course at Goodfellow Air Force Base, Texas, April 20, 2020. The course was the first-level training for Electromagnetic Spectrum Theory and Radar Theory, with two-thirds of its material taught through distance learning. SHARE: Download: Full Size (1.31 MB) Credit: Air Force Airman 1st Class Abbey Rieves VIRIN: 200420-F-DX596-1032M.JPG Photo Gallery