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Navy NEC · Engineering

V48B AN/SQQ-89 (V) Adjunct Subsystem Level II Technician

Current service use not established

This code is listed in the directory. Inclusion alone does not confirm current service use.

A Navy Enlisted Classification: a skill designation sailors hold in addition to their rating.

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Overview

An AN/SQQ-89(V) Adjunct Subsystem Level II Technician starts, operates, and shuts down adjunct subsystem components, including recorders, processing systems, tactical decision support equipment, and local area networks. The technician recognizes abnormal indications, identifies basic and complex malfunctions, performs corrective maintenance, and completes scheduled maintenance.

Core Skills

  • Complex adjunct subsystem fault diagnosis
  • Signal and display LAN maintenance
  • Tactical recording and alertment equipment operation

Civilian Career Paths

Career associations are editorial assessments of the cited evidence, not an official crosswalk unless the evidence explicitly says so. O*NET supplies civilian occupation information, not proof of a military match. Related experience does not confer civilian qualifications. Tasks and tools below describe civilian work, not military training.

Electrical and Electronic Engineering Technologists and Technicians

Diagnosing complex AN/SQQ-89 adjunct subsystem malfunctions and performing corrective and scheduled maintenance transfers directly to electronic equipment troubleshooting and repair.

How to prepare: Complete a hands-on electronics testing lab that practices diagnosing faults with standard test equipment and documenting repair verification.

What the civilian work involves
  • Modify, maintain, or repair electronics equipment or systems to ensure proper functioning.
  • Set up and operate specialized or standard test equipment to diagnose, test, or analyze the performance of electronic components, assemblies, or systems.
  • Identify and resolve equipment malfunctions, working with manufacturers or field representatives as necessary to procure replacement parts.

Computer Network Support Specialists

Operating and maintaining signal and display LANs within the adjunct subsystem provides a foundation for civilian network fault diagnosis.

How to prepare: Build a small Windows or Linux network lab and practice diagnosing connectivity faults while keeping a troubleshooting log.

What the civilian work involves
  • Identify the causes of networking problems, using diagnostic testing software and equipment.
  • Document network support activities.
Civilian tools and software (examples)
  • Linux
  • Microsoft Windows

Notes & Sources

Evidence for this guidance (3 documents)
  1. NAVPERS 18068F Vol II (NEOCS, Jul 2026 edition): NEC V48B

    [1] NEC entry "V48B - AN/SQQ-89 (V) Adjunct Subsystem Level II Technician"; cached text line 14376; NAVPERS 18068F Vol II, 2026-07 edition

    Supports: Complex adjunct subsystem fault diagnosis, Signal and display LAN maintenance, Tactical recording and alertment equipment operation, Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00), Computer Network Support Specialists (O*NET 15-1231.00)

  2. O*NET: Electrical and Electronic Engineering Technologists and Technicians

    [2] O*NET 30.3 occupational data

    Supports: Electrical and Electronic Engineering Technologists and Technicians (O*NET 17-3023.00)

  3. O*NET: Computer Network Support Specialists

    [3] O*NET 30.3 occupational data

    Supports: Computer Network Support Specialists (O*NET 15-1231.00)

Defense contractor jobs for V48B

Descriptions may be summarized for clarity. Verify all information with your branch career counselor or official military documentation before making career decisions.

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