Electronics Technician (ET)
Surface ETs maintain and repair electronics equipment such as radar, communication and navigation equipment. ETs can also perform the function of an IT by operating and maintaining computer networks depending upon what billet (job) they serve in. The ET and FC ratings comprise the basis of the ship's combat systems department aboard ships and are responsible for maintaining the ship's readiness for combat operations. ETs are responsible for the electronic equipment used to send and receive messages, detect enemy planes and ships, and determine target distance. They maintain, repair, calibrate, tune, and adjust all electronic equipment used for communications, detection and tracking, recognition and identification, navigation, and electronic countermeasures.