355th Communications Squadron
                U.S. Air Force Staff Sgt. Luis Permont, 355th Communications Squadron radio frequency transmissions systems supervisor, adjusts filters on a mixer to test a sound system output at Davis-Monthan Air Force Base, Ariz., Dec. 22, 2014. The radio frequency transmissions shop performs maintenance on the mixer every 84 days to ensure it is fully functional and prepared for official ceremonial support. (U.S. Air Force photo by Airman 1st Class Cheyenne Morigeau/Released)
                
                    
                        PHOTO BY:
                        Airman st Class Cheyenne MorigeauReleased 
                    
                    
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