analytic equipment operator

checkout equipment / test and control equipment, testing equipment

test and control equipment / testing equipment, checkout equipment

equipment / personal equipment

kit and equipment / combat kit and equipment

gun control equipment / gun-control equipment (GCE)

ECM equipment (electronic countermeasures equipment)

air traffic control operator

control tower operator

early warning system (EWS) operator

identification operator

operator control unit (OCU)

operator maintenance

operator’s pack

operator's permit

ship operator

telephone operator

radio telephone operator (RTO)

aiming rule operator

azimuth (deflection) display board operator

control post operator

vertical control operator

fire-control operator

navigator-radio operator

air operator certificate

aircraft operator

airport operator

flight operator

flight radio operator

flight systems operator

operator  D / Dt

operator communication

radar operator