Radio Operator-Maintainer

You are the soldier at the bottom of the antenna mast who makes sure the battalion can talk. The S6 runs on your back and you do not have a title for it yet.

You operate and perform operator-level maintenance on SINCGARS (AN/VRC-90, AN/VRC-92) and handheld tactical radios (AN/PRC-152A, AN/PRC-117G Falcon III). In garrison you load COMSEC fills, verify CEOI net data, run antenna checks, and track your radios on the hand-receipt. In the field you set up a radio retrans site, run the communications check drill before a convoy, and stay on the net during the element's movement. You will change more batteries and troubleshoot more cable runs than you will ever care to count.

• 01Load a COMSEC fill device (KYK-13, KIK-30, Simple Key Loader) into an AN/VRC-90 or AN/PRC-117G — clean, in sequence, in the dark.
• 02Configure a SINCGARS ECCM net: set frequency hop parameters, load TRANSEC key, confirm crypto sync with the distant station.
• 03Erect an OE-254 antenna, check SWR, and troubleshoot a "no comm" from antenna through feedline to radio head.
• 04Operate the AN/PRC-152A (Falcon III) in single-channel, frequency-hop, and satellite PTT modes — switch between them mid-mission without fumbling.
• 05Copy and retransmit a SALUTE/SPOT/ACE report by voice over an encrypted net without breaking format.
• 06Perform PMCS (operator-level) on assigned radios per the applicable TM — log deficiencies, deadline equipment correctly.

• —STP 11-25C13-SM-TG — Soldier's Manual and Trainer's Guide for MOS 25C, skill levels 1-3 (the task list that governs your annual validation).
• —FM 6-02 — Signal Support to Operations (how the comm architecture you work in is supposed to function).
• —TM 11-5820-890-10-1 and -2 — Operator's and Unit Maintenance Manual for AN/VRC-90/92 family SINCGARS (the actual manual for the radio you touch every day).
• —AR 25-1 — Army Information Technology; AR 25-2 — Army Cybersecurity (even at your level, COMSEC accountability runs through these).
• —KAL-5 / COMSEC accountable item SOPs — unit SOP document, not a public reg, but read yours before you ever touch a fill device.

• —COMSEC fill accuracy: zero fill errors in a pre-mission net check. One fill error stops the element from launching.
• —Antenna erection and comm check completed within the time window in the unit OPORD annex — usually 30-45 minutes from vehicle halt to net open.
• —PMCS on assigned radios complete before every field event; DA 2404 / DA 5988-E submitted before the element departs the motor pool.
• —Annual COMSEC accountable item inventory reconciled against the hand-receipt — every COMSEC item accounted for, every time.
• —ACFT pass rate: the brigade radio operator who cannot ruck is the same soldier the platoon cannot trust to carry the retrans kit.

• —Loading the wrong COMSEC key into the wrong radio. The fill is classified; the scramble to rekey all nets before the launch window costs the element the mission.
• —Leaving the COMSEC fill device unsecured — even for 30 seconds. The COMSEC officer's inspection finds it; your NCO owns the counseling.
• —Failing to perform pre-mission antenna checks. "I thought it was working" is not an answer when the convoy cannot talk to the TOC during contact.
• —Transmitting sensitive unit movement information in the clear when the crypto sync drops. Default voice procedure is the fallback — know it before you need it.
• —Skipping the PMCS entry on a deficient radio because "we are only going out for two days." The radio dies in the field; the DA 2404 you skipped is exhibit A in the investigation.

The good 25C cherry is the soldier the squad leader sends to set up the retrans site alone because he knows it will be up, keyed, and checked before the element moves. By month nine the radios on the hand-receipt are clean, the COMSEC accountable items reconcile on the first try, and the section NCOIC is letting them run the pre-mission comms check without supervision.

You are the unit's reliable hands on the tactical radio net. When the element moves, you are the one the platoon leader trusts to keep the battalion TOC in the fight.

You operate and perform unit-level maintenance on the SINCGARS family, AN/PRC-117G, AN/PRC-152A, and the associated vehicular mount kits (AN/VRC-90/92). You build and brief the communications annex for small-unit operations. You train the newer privates on the fill drill and the PMCS cycle. You are starting to think about the BLC slot, the promotion-points stack, and whether you want to reclass or extend into a warrant officer path. The S6 shop knows your name — in a good way.

• 01Troubleshoot AN/VRC-90/92 vehicular installations to the unit-maintenance level: diagnose RF power output issues, antenna coupler faults, interoperability fails with the C2 terminal.
• 02Build and brief a simple communications annex to an OPORD — primary, alternate, contingency, and emergency (PACE) plan with actual frequencies, call signs, and authentication.
• 03Set up and operate a retransmission (RETRANS) site using SINCGARS assets — link two nets, manage traffic flow, hand off to a relief operator without dropping the net.
• 04Configure the AN/PRC-117G for SATCOM PTT mode and establish a beyond-line-of-sight (BLOS) tactical voice circuit.
• 05Conduct unit-level maintenance (10/20-level repair) on AN/VRC-90-series mounts: inspect wiring harness, reseat control heads, test RF switch assembly.
• 06Operate the Electronic Warfare (EW) threat environment plan in an exercise — know when to go EMCON, how to transition ECCM nets, what to report to S6 if you hear something that shouldn't be there.

• —STP 11-25C13-SM-TG — Soldier's Manual and Trainer's Guide, skill levels 1-3 (the promotion-board task standard).
• —TM 11-5820-890-10-1 through -20P — SINCGARS AN/VRC-90/92 operator and unit maintenance manuals.
• —FM 6-02 — Signal Support to Operations (understand the architecture above your radio node).
• —ATP 6-02.53 — Techniques for Tactical Radio Operations (the how-to manual for the PACE plan you are building).
• —AR 380-40 — Safeguarding Cryptographic Information (COMSEC accountability at the unit level — you are an accountable sub-hand-receipt holder).

• —BLC slot before E-5 board; promotion points stacked through Army CA credentials (CompTIA IT Fundamentals, Communications-related certificates via COOL).
• —Unit-level maintenance actions completed by the operator-maintenance standard without calling higher — radio deadlined by the book, not by convenience.
• —PACE plan briefed for every exercise and field problem — primary to emergency, all four tiers tested before the element launches.
• —COMSEC accountable item sub-hand-receipt reconciled monthly — zero discrepancies at the battalion COMSEC annual audit.
• —Zero unauthorized transmissions in the clear on an encrypted net. One incident generates a COMSEC incident report that follows your OMPF.

• —Improvising a PACE plan the night before a mission instead of coordinating with the battalion S6 during the OPORD process. The plan that doesn't deconflict with higher nets will not work when you need it.
• —Performing unauthorized modification or repair above your authorized 10/20-level. The calibration is off, the next operator doesn't know it, and the radio fails a comm check in contact.
• —Forgetting to sanitize the radio (zeroize / delete) before maintenance turn-in. COMSEC fill in a radio going to the shop is a reportable incident.
• —Treating SINCGARS ECCM hop set loading as a one-time event. The timing reference drifts; the net stops syncing; the element is off the air.
• —Signing for COMSEC items without physically verifying quantity and condition. You are now personally responsible for whatever was missing when the last person signed.

The good Specialist 25C is the soldier the platoon leader puts in the vehicle with the retrans kit and doesn't worry about for the rest of the rotation. He has the PACE plan built before the OPORD brief, the radios keyed before first light, and the new privates running the morning net check without him holding their hands. The S6 NCOIC is already telling him to start the BLC packet.

You own the battalion's communications posture on the ground. When the TOC loses the net, the BC's first call is your section.

You lead a 4-8 soldier radio section at battalion S6 or within a signal platoon. You build the battalion PACE plan, coordinate frequency deconfliction with the brigade S6, and supervise the COMSEC program. You write counselings and NCOERs for your specialists and train them toward BLC and the first promotion board. In the field you run a tactical operations center (TOC) communications suite — SINCGARS, Falcon III SATCOM, sometimes VSAT or MSE links — and you own the comms brief at the battalion OPORD. When the net goes down in contact, you are the fix, not the report.

• 01Lead a section through a full tactical communications package: site survey, installation, validation, and sustained operations across garrison-to-field transitions.
• 02Build and defend a PACE plan at the battalion level — primary through emergency tiers coordinated with brigade S6, deconflicted in the CEOI.
• 03Manage a battalion COMSEC program: accountable item accountability, key management, destruction logs, and incident reporting under AR 380-40.
• 04Operate the AN/PRC-117G in tactical SATCOM mode and configure an AN/VSQ-2 or equivalent HCLOS link for battalion TOC connectivity.
• 05Write a comms NCOER bullet that captures measurable outcomes: net uptime percentage, COMSEC audit results, maintenance readiness rates.
• 06Onboard a new specialist into the radio section within two weeks — fill procedures, PMCS schedule, net architecture, and property accountability from day one.

• —FM 6-02 — Signal Support to Operations (you are now responsible for the annex, not just the radio).
• —ATP 6-02.53 — Techniques for Tactical Radio Operations.
• —AR 380-40 — Safeguarding Cryptographic Information (you own the program at battalion level).
• —STP 11-25C13-SM-TG — skill level 3 tasks are now your standard.
• —AR 623-3 — Evaluation Reporting System (your first NCOERs run through this — write bullets that are objective and defensible).
• —AR 600-8-19 — Enlisted Promotions and Reductions (know the promotion point system; your soldiers' advancement is your job).

• —ALC graduate (or on the scheduled class roster); SLC packet building.
• —Battalion-level COMSEC annual audit completed with zero unresolved discrepancies.
• —Section radio maintenance readiness rate at or above the battalion maintenance standard (reported to the battalion S6 monthly).
• —NCOER bullets that reflect real metrics — uptime, COMSEC audit results, training completion rates — not boilerplate "performed in an outstanding manner."
• —ACFT pass at or above brigade average; the comms sergeant who cannot pass the physical test is the one the CSM names at the next PT formation.

• —Accepting a frequency assignment from brigade without checking it against your own net architecture. Conflicts surface at the worst moment — the first push in a force-on-force exercise.
• —Letting a junior soldier operate a fill device without direct supervision until they have demonstrated proficiency. One wrong fill is a COMSEC incident report that attaches to your NCOER block.
• —Failing to run a full communications check — antenna to end-user — before an OPORD execution. "We tested the radios" is not the same as "we tested the net."
• —Delegating the COMSEC accountability role without maintaining oversight. The accountable officer holds you personally responsible; delegation does not transfer liability.
• —Skipping the pre-exercise frequency coordination meeting with the brigade S6. You will find out your primary net conflicts with the aviation frequency plan during the first live exercise event.

The good SGT 25C is the communications sergeant the battalion S3 names without thinking when the XO asks "who runs comms?" The net is up before the OPORD brief, the COMSEC audit comes back clean, and his section runs the morning net checks without his physical presence. The S6 OIC is already building a case for him to attend ALC early.

You are the senior communications NCO at battalion or the platoon sergeant of a signal platoon. The S6 officer briefs upward; you make sure the ground truth is true.

You run a 15-25 soldier signal element or serve as the senior radio NCO advising the battalion S6 officer. You build the brigade communications architecture for the battalion's slice. You mentor two or three SGTs into the ALC-graduate / NCO leader pipeline. You sit in the battalion-level working group meetings and represent the S6 cell on the operational planning team (OPT) when the S6 is unavailable. You own the COMSEC program at the unit level and you defend it at the brigade IG inspection. The brigade senior signal NCO is watching your NCOERs closely.

• 01Design a battalion-level communications architecture — primary, alternate, contingency — that integrates SINCGARS ECCM, Falcon III SATCOM, and any unit VSAT package without single points of failure.
• 02Run a brigade-level COMSEC inspection or an external evaluation at your level — gap-free, every key and accountable item documented and defensible.
• 03Build a 6-month training plan that produces two ALC-ready NCOs and a BLC-ready SPC from your section.
• 04Operate as the senior tactical communications NCO on a CTC rotation (JRTC, NTC, JMRC) — sustain the net through the fight, not just at the setup point.
• 05Mentor your SGTs on NCOER writing — specific, objective, and tied to their actual section performance metrics.
• 06Translate a communications plan into a coherent commander's brief that a non-signal officer can execute in your absence.

• —FM 6-02 — Signal Support to Operations (you teach from this now, not just read it).
• —ATP 6-02.40 — Techniques for Information Networks Operations.
• —ATP 6-02.53 — Techniques for Tactical Radio Operations.
• —AR 380-40 — Safeguarding Cryptographic Information (you own accountability at the unit level).
• —AR 623-3 — Evaluation Reporting System (you are now the rater for 2-4 NCOERs per cycle).
• —Signal Center and School (Fort Eisenhower) publications and Capstone exercises referenced in ALC/SLC curriculum.

• —SLC graduate or on the scheduled class roster; MLC on the horizon.
• —COMSEC program inspection (IG / brigade-level) passed with zero unresolved discrepancies.
• —Section radio maintenance readiness rate reported at the battalion level — above the brigade signal baseline.
• —NCOER profile defensible at the battalion and brigade level — no block-check boilerplate; rated NCOs selected at the E-7 board.
• —ACFT 520+ at this rank; senior signal NCO fitness is a visible data point at the brigade.

• —Building a communications architecture that works on the PowerPoint but hasn't been radio-checked against the actual terrain and vegetation. The first exercise proves it; the second cannot afford to.
• —Allowing your section to run an unauthorized modification to a radio or antenna system without a change-management document. The calibration failure shows up at the worst moment and there is no record of what changed.
• —Letting COMSEC accountability drift because "the S6 officer is supposed to do that." The accountable officer delegates; the duty and the liability stay with the accountable item holder.
• —Skipping the pre-CTC communications exercise rehearsal because time is short. NTC/JRTC evaluators know the difference between a section that has actually rehearsed the contingency nets and one that is figuring it out in the problem.
• —Treating soldier issues as administrative noise instead of leadership load. The signal platoon with a welfare problem in the barracks is the one that misses the launch window at 0300.

The good SSG 25C is the senior signal NCO the brigade S6 calls when the communications plan for the CTC rotation is not closing. His section runs the contingency net before the evaluator asks for it, his COMSEC program is inspection-ready year-round, and two of his SGTs are already on the ALC class roster. The battalion XO names him in the slide when the CG asks who owns comms.

You are the senior enlisted communications voice at the brigade S6 or the signal company platoon sergeant. The O-4 briefs from your data.

You serve as platoon sergeant of a signal or HHC element, as the brigade communications chief, or as the senior signal NCO on a division or corps staff. You write four to six NCOERs per cycle, manage the COMSEC program at scale, and mentor your SSGs toward the SFC board. You are the subject-matter expert in the room when brigade is building its communications annex for the operation plan. You attend the brigade-level communications working group and represent the signal function in the BCT OPORD cycle. The warrant officer track is a real conversation at this point in your career.

• 01Develop and defend a brigade-level communications architecture across all operating environments — FM ECCM, SATCOM, HCLOS, and data — with redundancy designed in.
• 02Manage a COMSEC program at brigade or higher scale: key generation cycle, accountable item accountability across subordinate units, incident reporting up the chain.
• 03Lead the signal section through a Command Cyber Readiness Inspection (CCRI) or external evaluation — the communications infrastructure piece, not just the IT side.
• 04Run a battalion or brigade signal exercise from concept to execution: terrain analysis, site selection, installation, network validation, and AAR.
• 05Build and deliver a comms SOP training program that produces qualified radio section leaders across the brigade.
• 06Operate as senior signal NCO on a JTF or higher-echelon staff during a real-world or exercise event — coordinate with adjacent S6 cells, Army Signal Command, and supporting signal brigades.

• —FM 6-02 — Signal Support to Operations (you set the standard for the brigade off this manual).
• —ATP 6-02.40 — Techniques for Information Networks Operations.
• —ATP 6-02.53 — Techniques for Tactical Radio Operations.
• —AR 380-40 — Safeguarding Cryptographic Information.
• —DoDM 8140 — Cyberspace Workforce Qualification (signal NCOs at this level are increasingly expected to hold IAT credentials).
• —ALC / SLC / MLC curriculum and Fort Eisenhower signal leadership publications; Signal School Capstone materials.

• —MLC graduate; U.S. Army Sergeants Major Academy (USASMA) on the horizon if CSM track.
• —Brigade COMSEC program inspection passed with no accountable-item discrepancies on your watch.
• —Warrant officer packet (255A / 255N / 255S) advising pipeline active — at least one candidate selected from your section per tour.
• —Four to six NCOERs per cycle that the senior rater can defend at the board: objective, specific, no pattern of boilerplate language.
• —ACFT pass at the brigade level — senior signal NCO fitness is tracked on the slide the BCT CG reviews.

• —Letting communications architecture decisions default to the junior NCO because "they know the gear better." Senior signal NCOs who abdicate architecture decisions produce communication plans that work in garrison and fail at NTC.
• —Hiding a COMSEC incident from the brigade S6 to "handle it at the section level." COMSEC incident reports go up the chain by regulation; the investigation that follows is worse if you delayed it.
• —Treating the warrant officer track as a retention talking point without being honest about the selection rate and the school demands. Soldiers who go in without full information come back resentful.
• —Accepting an "it worked last time" communications plan without updated terrain analysis and frequency coordination for the current operation. Frequency interference from adjacent units kills nets; terrain from last year's rotation does not match this year's.
• —Skipping the SHARP / EO / climate piece in the signal platoon because "the soldiers are too busy with equipment." Senior signal NCOs lose command tracks over climate findings as fast as any other MOS.

The good SFC 25C is the senior signal NCO the brigade S6 OIC names in the slide when the CG asks about communications readiness. His COMSEC program has never failed an external inspection on his watch. His SSGs are ALC graduates, his SGTs are building BLC packets, and his section runs the contingency net before the evaluator can write the deficiency. The warrant officer slate he built is producing 255A selectees.

You are the senior enlisted voice in a signal company, brigade S6, or higher staff. The battalion and brigade commanders name you in the slide when communications matters.

As 1SG you run a signal company or HHC — 80-120 soldiers, an enormous equipment footprint, the orderly room, the supply room, the COMSEC program, and the readiness report. As SGM or CSM at brigade or higher, you set the standard for the entire enlisted signal workforce — training pipelines, credentialing, retention, warrant officer accessions, and reclass into the 17-series cyber pathway. You brief the BCT or division CG on signal readiness, you advise the S6 on operational communications risks, and you mentor the senior NCO bench that will replace you. You are in the Army career-field conversation for the Signal Regiment and you know what Fort Eisenhower is trying to produce.

• 01Run a signal company or large-scale signal cell at the command-climate level — soldier welfare, retention, and readiness all visible to you simultaneously.
• 02Brief the BCT or division CG on communications readiness in language the CG can defend at the next higher echelon.
• 03Mentor the warrant officer pipeline (255A / 255N / 255S) at scale — producing multiple selectees per year from your unit.
• 04Translate Army signal modernization priorities (WIN-T successor, PNT resilience, PACE evolution) into enlisted-talent decisions in the unit.
• 05Sustain the COMSEC program at organizational scale: key management, accountable item accountability across the full unit, and incident posture reported to the battalion/brigade commander.
• 06Lead the signal NCO professional development program across the brigade — BLC, ALC, SLC, credentialing, and the USASMA pipeline all managed in one visible workforce plan.

• —AR 600-20 — Army Command Policy; AR 27-10 — Military Justice (you are in the room now).
• —FM 6-02 — Signal Support to Operations (you are accountable for the entire signal function it describes).
• —AR 380-40 — Safeguarding Cryptographic Information (COMSEC accountability at the organizational level).
• —DoDM 8140 — Cyberspace Workforce Qualification (you own the enlisted credentialing roll-up).
• —Army Signal Regiment senior NCO publications; Fort Eisenhower Signal Center and School strategy documents.
• —The 1SG Course / USASMA / CSM reading list — you are expected to teach doctrine and career development, not just consume it.

• —USASMA or SGM-Academy completion before competing for command CSM slate.
• —Signal company or brigade signal cell COMSEC inspection passed with zero senior-NCO-attributable discrepancies during your tenure.
• —Warrant officer accession pipeline producing at least one selected candidate per year from your unit.
• —NCOER profile the senior rater can defend at brigade and division — the rated NCOs you developed are being selected for ALC, SLC, and the first-sergeant slate.
• —Zero senior-NCO-level integrity, fraternization, OPSEC, or financial incidents. One ends the career permanently and reflects on the entire formation.

• —Pretending to be the technical subject-matter expert on a system you have not operated in five years. Senior signal NCOs who fake technical depth lose the formation's trust faster than any administrative failure.
• —Letting a signal company drift on COMSEC accountability because the S6 OIC is supposed to be tracking it. You own it. The accountable officer is looking at your name on the program.
• —Treating the warrant officer slate as a retention favor instead of a talent-development imperative. The 255A and 255N paths are the highest-impact technical careers the Army has in the signal domain; mentor them like that.
• —Confusing equipment seniority with current technical relevance. The Army's tactical communications are changing — WIN-T, PACE evolution, spectrum management — and a senior NCO who stops learning stops leading.
• —Taking a public disagreement with a signal officer's communications plan to the staff instead of the officer's door. Address it privately, walk out aligned, or escalate through the proper channel.

The good signal CSM or 1SG is the senior NCO the BCT and division CG name when communications is on the agenda. Her signal company is the one the brigade loans to adjacent units during rotations. Her enlisted talent slate is producing SFCs and warrant officers at a rate above the Signal Regiment average. Her COMSEC program has never generated an unresolved incident during her tenure, and her soldiers know the difference between a senior NCO who used to be great and one who is still in the fight.