PMEL calibrates Kadena
Senior Airman Austin Jackson, a precision measurement equipment laboratory technician from the 18th Component Maintenance Squadron, calibrates a TTU-205J test set at Kadena Air Base, Japan, April 29, 2021. After a preliminary self-test to check the user interface functions correctly, the test set is connected to a calibrator, which completes a pre-check before the calibration. This two-step process takes approximately three hours to complete, but is integral to ensuring the machine functions correctly. (U.S. Air Force photo by Airman 1st Class Anna Nolte)

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Photo by: Airman 1st Class Anna Nolte |  VIRIN: 210429-F-ZJ963-1122.JPG