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Army MOS · Communications

25S Satellite Communications Systems Specialist (SATCOM Sys Sp)

Current service use not established

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

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Overview

A Satellite Communications Systems Specialist supervises, installs, operates, and maintains tactical through strategic multichannel satellite communications ground terminals, systems, networks, and associated equipment. The specialist works on strategic earth terminal complexes and performs engineering quality control and continuity testing on circuits, trunks, links, systems, and facilities.

Minimum clearance: Secret

Minimum ASVAB: EL 107

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

  • Circuit, trunk, and link continuity testing
  • Strategic earth terminal complex maintenance
  • Multiplexing and communications security equipment operation
  • Communications system engineering quality control

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 satellite ground terminals and antennas, plus testing communications links, transfers directly to transmission equipment installation and testing.

How to prepare: Complete hands-on practice in transmission-component sweep testing and document an antenna installation inspection against a site drawing.

What the civilian work involves
  • 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.
  • Test operation of tower transmission components, using sweep testing tools or software.
  • Install all necessary transmission equipment components, including antennas or antenna mounts, surge arrestors, transmission lines, connectors, or tower-mounted amplifiers (TMAs).

Electrical and Electronics Repairers, Commercial and Industrial Equipment

Maintaining ground terminals, multiplexing equipment, and technical control facilities provides a foundation for electronic equipment repair and functional testing.

How to prepare: Take a hands-on electronics troubleshooting course using commercial equipment and produce a repair log showing fault diagnosis, corrective action, and retest results.

What the civilian work involves
  • Test faulty equipment to diagnose malfunctions, using test equipment or software, and applying knowledge of the functional operation of electronic units and systems.
  • Maintain equipment logs that record performance problems, repairs, calibrations, or tests.
  • Inspect components of industrial equipment for accurate assembly and installation or for defects, such as loose connections or frayed wires.
Civilian tools and software (examples)
  • Circuit evaluation software
  • Computerized maintenance management system CMMS

Network and Computer Systems Administrators

Operating satellite communications networks and testing their links provides a network-operations foundation for learning computer systems administration.

How to prepare: Build a Linux and Microsoft Active Directory lab, then practice network configuration, fault diagnosis, and backup restoration to develop systems skills beyond satellite transport.

What the civilian work involves
  • Maintain and administer computer networks and related computing environments, including computer hardware, systems software, applications software, and all configurations.
  • Perform data backups and disaster recovery operations.
  • Diagnose, troubleshoot, and resolve hardware, software, or other network and system problems, and replace defective components when necessary.
Civilian tools and software (examples)
  • Linux
  • Microsoft Active Directory
  • Bash

Training & Development

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

Getting Started

  • Associate Electronics Technician (CETa)

    Strengthen the electronics foundation for transmission equipment and commercial electronics repair; ETA also offers an optional hands-on component.

    For: Radio, Cellular, and Tower Equipment Installers and Repairers, Electrical and Electronics Repairers, Commercial and Industrial Equipment

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

    Develop network access, IP connectivity, and IP services knowledge for the transition into computer network administration.

    Eligibility and preparation: No prerequisites; earning the certification requires passing exam 200-301 CCNA.

    For: Network and Computer Systems Administrators

Notes & Sources

Evidence for this guidance (6 documents)
  1. Army COOL MOC feed: 25S Satellite Communications Systems Specialist (SATCOM Sys Sp)

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

    Supports: Circuit, trunk, and link continuity testing, Strategic earth terminal complex maintenance, Multiplexing and communications security equipment operation, Communications system engineering quality control, Radio, Cellular, and Tower Equipment Installers and Repairers (O*NET 49-2021.00), Electrical and Electronics Repairers, Commercial and Industrial Equipment (O*NET 49-2094.00), Network and Computer Systems Administrators (O*NET 15-1244.00)

  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: Electrical and Electronics Repairers, Commercial and Industrial Equipment

    [3] O*NET 30.3 occupational data

    Supports: Electrical and Electronics Repairers, Commercial and Industrial Equipment (O*NET 49-2094.00)

  4. O*NET: Network and Computer Systems Administrators

    [4] O*NET 30.3 occupational data

    Supports: Network and Computer Systems Administrators (O*NET 15-1244.00)

  5. COOL credential mapping: Associate Electronics Technician (CETa)

    [5] 25S cached COOL credential feed

    Supports: Associate Electronics Technician (CETa)

    [6]ETA International: Associate Certified Electronics Technician · CETa description and CETa Exam Info; retrieved 2026-09-23

    Supports: Associate Electronics Technician (CETa)

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

    [7] 25S cached COOL credential feed

    Supports: Cisco Certified Network Associate (CCNA)

    [8]Cisco: CCNA certification · How to earn your CCNA, Core exam 200-301 CCNA; updated 31 August 2026, retrieved 23 September 2026

    Supports: Cisco Certified Network Associate (CCNA)

Defense contractor jobs for 25S

Predecessor codes

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

25P1Microwave Systems Operator-Maintainer25P2Microwave Systems Operator-Maintainer25P3Microwave Systems Operator-Maintainer25P4Microwave Systems Operator-Maintainer25T5Satellite/Microwave Systems Chief31S1Satellite Communication Systems Operator- Maintainer31S2Satellite Communication Systems Operator- Maintainer31S3Satellite Communication Systems Operator- Maintainer31S4Satellite Communication Systems Operator- Maintainer

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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