mos.directory

Army MOS · Communications

25U Signal Operations Support Specialist (Sig Ops Spt Spc)

Current service use not established

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

Browse Army

Overview

A Signal Operations Support Specialist installs, operates, deploys, maintains, and troubleshoots Army radio and information systems in vehicular and dismounted configurations. The specialist manages IP based radio networks, configures local area networks and routers, maintains antennas and retransmission operations, and services assigned communications equipment, vehicles, and generators.

Minimum clearance: Secret

Minimum ASVAB: EL 95 and SC 95

ASVAB policy: Not policy-reviewed · coverage unknown · as of 2026-10-19

Program scope has not been reviewed.

Policy applicability and coverage of the program's score routes have not been reviewed. Shown-route arithmetic is not an eligibility decision.

Source: smartbook-611-21-ch10c-fy2025 (source date 2025-12). Policy applicability has not been established.

See if you would hit this score: free ASVAB practice test

Core Skills

  • IP-based tactical radio network management
  • Local network and router troubleshooting
  • Field-expedient antenna installation and maintenance
  • Radio retransmission setup and 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.

Radio, Cellular, and Tower Equipment Installers and Repairers

Installing and maintaining tactical radios, field-expedient antennas, and retransmission systems transfers directly to radio transmission equipment work.

How to prepare: Complete a supervised antenna installation exercise covering coaxial cabling, grounding, weatherproofing, and transmission-component sweep testing.

What the civilian work involves
  • Run appropriate power, ground, or coaxial cables.
  • Install all necessary transmission equipment components, including antennas or antenna mounts, surge arrestors, transmission lines, connectors, or tower-mounted amplifiers (TMAs).
  • Inspect completed work to ensure all hardware is tight, antennas are level, hangers are properly fastened, proper support is in place, or adequate weather proofing has been installed.

Computer Network Support Specialists

Configuring and troubleshooting LANs and routers and managing IP-based radio networks transfers to diagnosing civilian network faults.

How to prepare: Build a small LAN lab and document how you diagnose and resolve router connectivity faults.

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

Training & Development

Choose credentials for your target role. COOL funding markers describe program listings, not a guarantee of eligibility or funding.

Getting Started

  • CompTIA Network+ · Funded · Promotion points · STAR

    Build civilian networking knowledge to support LAN troubleshooting and network support work.

    Eligibility and preparation: No mandatory prerequisites are listed; CompTIA recommends A+ certification and 9 to 12 months of hands-on experience in a junior network administrator or network support technician role.

    For: Computer Network Support Specialists

  • Cisco Certified Network Associate (CCNA) · Funded · Promotion points · STAR

    Prepare for entry-level network support through Cisco's associate-level networking certification.

    Eligibility and preparation: None for the certification exam.

    For: Computer Network Support Specialists

Notes & Sources

Evidence for this guidance (6 documents)
  1. Army COOL MOC feed: 25U Signal Operations Support Specialist (Sig Ops Spt Spc)

    [1] data/authority/army-codes.json entry 25U (OSD COOL feed, fetched 2026-07-25); DB rank enlisted, authority codeType enlisted

    Supports: IP-based tactical radio network management, Local network and router troubleshooting, Field-expedient antenna installation and maintenance, Radio retransmission setup and operation, Radio, Cellular, and Tower Equipment Installers and Repairers (O*NET 49-2021.00), Computer Network Support Specialists (O*NET 15-1231.00)

  2. O*NET: Radio, Cellular, and Tower Equipment Installers and Repairers

    [2] O*NET 30.3 occupational data

    Supports: Radio, Cellular, and Tower Equipment Installers and Repairers (O*NET 49-2021.00)

  3. O*NET: Computer Network Support Specialists

    [3] O*NET 30.3 occupational data

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

  4. COOL credential mapping: CompTIA Network+

    [4] 25U cached COOL credential feed

    Supports: CompTIA Network+

    [5]CompTIA: Network+ (Plus) certification exam details · Exam details; retrieved 2026-09-23

    Supports: CompTIA Network+

  5. COOL credential mapping: Cisco Certified Network Associate (CCNA)

    [6] 25U cached COOL credential feed

    Supports: Cisco Certified Network Associate (CCNA)

    [7]Cisco: CCNA certification — how to earn, 200-301 exam, recertification · How to earn your CCNA, Core exam 200-301 CCNA details, Recertification; retrieved 2026-09-23

    Supports: Cisco Certified Network Associate (CCNA)

  6. Cisco: Implementing and Administering Cisco Solutions (CCNA) training

    [8] Prerequisites and Who should enroll; retrieved 2026-09-23

    Supports: Cisco Certified Network Associate (CCNA)

Defense contractor jobs for 25U

Predecessor codes

Historical codes with documented links to 25U. Each history page explains the change.

25C1Radio Operator-Maintainer25C2Radio Operator-Maintainer25C3Radio Operator-Maintainer31U1Signal Support Systems Specialist31U2Signal Support Systems Specialist31U3Signal Support Systems Specialist31U4Signal Support Systems Specialist31U5Signal Support Systems Specialist

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

Report an error on this page