The United States Navy job rating of electronics technician (ET) is a designation given by the Bureau of Naval Personnel (BUPERS) to enlisted members who satisfactorily complete initial Electronics Technician "A" school training.

The story of their training may be found at "Solving the Naval Radar Crisis" by Raymond C Watson, Jr. Trafford Publishing 2007 ISBN 978-1-4251-6884-1.

Former Radarmen, depending on their training, were placed in to the either the established Electronic Technician (ET) rating or either of the newly established Operations Specialist (abbreviated as OS) or Electronic Warfare Technician (abbreviated as EW) ratings.

[5] On 21 December 2016, however, after months of widespread complaints, Chief of Naval Operations John Richardson released a message announcing a restoration of all U.S. Navy Ratings.

They maintain, repair, calibrate, tune, and adjust electronic equipment used for communications, detection and tracking, recognition and identification, navigation.

[8] Enlistees are taught the fundamentals of the ET rating through the following formal Navy schooling.

These 'C' school give the ET advanced training in the specific systems that will be required to maintain and repair at their next duty assignment.

San Diego, CA The Navy's Submarine Electronics / Computer Field (SECF) offers extensive training in the operation and maintenance of "Today's High Technology" advanced electronics equipment, digital systems and computers used in submarine combat control, sonar, navigation and communications systems.

ETNs are the only rating in the Navy that can qualify as a reactor operator of a naval nuclear propulsion plant.

ETNs complete several different phases of training in order to be able to operate a naval nuclear propulsion plant.

In order to be selected for nuclear training prospective Navy recruits must have a high enough cutscore on the Armed Service Vocational Battery (ASVAB) that score being greater than 88 and the Navy Advanced Placement Test (NAPT) that score being greater than 55%.

The curriculum is presented in a high paced manner that ramps up over the term at NFAS in order to prepare students for the difficulties of Nuclear Power School.

Since ETNs are required to stand watches, perform maintenance, and train and qualify on additional submarine systems, it is not uncommon for it to take over 12 months for an ETN to become fully qualified as a reactor operator, shutdown reactor operator, and all intermediate watches.

Upon subsequent transfer to an NPTU or another nuclear ship, operators are required to re-qualify the same watches in only about 6 months.

On a ship this generally includes general Engineering or Reactor Department training, Reactor Controls division training, periodic exams and interviews, monitored maintenance and operations, periodic watch re-qualifications, and monitored tactical or casualty drills.

Usually after an ETN is "fully qualified" the individual is sent to an "in-rate" technical school ETMS where the technician studies electronic troubleshooting and repair on shipboard equipment.

The training time required to qualify for senior supervisory watches depends on the individual.