Mike Olson isolates signals and corrects the bandwidth using filters on navigation equipment at Fairchild Air Force Base, Wash., Nov. 5, 2013. Olson is a 92nd Maintenance Squadron Precision Measurement Equipment Laboratory electric technician and a Forest Hills, Md., native. PMEL is responsible for calibrating equipment used in virtually every phase of maintenance for nearly every piece of equipment the Air Force operates. (U.S. Air Force photo by Staff Sgt. Benjamin W. Stratton)
