calibration and checking system

fall of shot calibration (fall-of-shot calibration)

fuse calibration correction / fuze calibration correction

wire-checking team

fire extinguishing system sprinkler system and fire alarm system

attitude-and-heading reference system / attitude and heading reference system (AHRS)

observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)

fuze calibration correction

ground calibration

instrument calibration

absolute calibration

calibration circle

calibration pip

calibration ring

calibration adjustment (fire)

calibration error

calibration scale

calibration test

calibration

radar calibration squadron

calibration adjustment [fire]

calibration fire

calibration firing

calibration point

comparative calibration 

firing calibration

fuse calibration correction

range calibration

calibration correction

vertical calibration correction

Space System for Tracking Ships and Aircraft in Distress – Search and Rescue Satellite (COSPAS-SARSAT)

merchant ship communication system (mercomm system)

multiple launch rocket system (MLRS); multiple rocket launcher system