Army Staff Sgt. Esteban Sanchez, an instructor in the Basic Television Electronics Maintenance Course at the Defense Information School at Fort Meade, Md., powers up the vector scope on a test equipment rack Oct. 5, 2015. Originally from San Jose, Calif., Sanchez was chosen as the DINFOS Warrior of the Quarter in September. (U.S. Navy photo by Petty Officer 2nd Class John Suits)