25S30 - SATCOM System Supervisor
Serves as the SATCOM Systems Supervisor for the Camp Carroll strategic earth terminal for a strategic signal company; responsible for operations and maintenance of an AN/GSC-52 V(1) satellite terminal providing strategic and tactical communications services throughout the Korean peninsula, Japan, Hawaii, and the United States in support of United Nations Command (UNC)/Combined Forces Command (CFC)/Unites States Forces Korea (USFK) and Eighth Army Commanders; responsible for systems support equipment, 2 vehicles and 1 facility valued in excess of $3.2 million; responsible for the welfare, morale, discipline and professional development of 1 Civilian, 4 NCOs and 13 Soldiers.
Senior Satellite Communications Operator Maintainer (25S20)
Serves as senior satellite technician for Signal, Intelligence & Sustainment Company, Headquarters and Headquarters Battalion, in the only Airborne Division in the United States Army; supports the Global Response Force mission, capable of deploying anywhere in the world within 18 hours; manages the communication capabilities, training, and operational readiness of one AN/TSC-169B Unit Hub SATCOM Truck, ensuring communication reliability at the division level; responsible for the health, welfare, and training of four Soldiers; directly responsible for a Company Commo Cage and CBRN Cage and all associated equipment therein worth in excess of $4 million.
25B30 - Senior SATCOM NCO
Serves as the senior Satellite Communications Systems NCO in a forward deployed Expeditionary Signal Battalion; provides above-user level support in the installation, operation, readiness and maintenance of 24 WIN-T INC1c satellite communication systems within the xxx Battalion; supports the Battalion Engineering Cell in Satellite Access Requests, dissemination, maintenance and extensions of Satellite Access Authorizations; conducts planning, coordination, maintenance and configuration of tactical Satellite Communication links throughout the South West Asia region; responsible for the health, morale, and welfare of 2 NCOs and four Soldiers.
25S2O, Senior SATCOM OPR-MNT
Serves as shift supervisor and senior technician for the 181st Signal Company in direct support of global NCA, NATO, EUCOM, CENTCOM, DISA missions and contingencies; manages the communication capabilities, training, and operational readiness of 13 satellite systems consisting of 347 racks of equipment ensuring communication reliability while managing a shift comprised of six Soldiers, one Noncommissioned Officer, three Department of the Army Contractors (DAC), and a Contractor Support Team (CST) consisting of eight personnel; directly responsible for a SATCOM facility valued in excess of $400 million.
25S3O Transmissions Systems Supervisor
Serves as a Transmissions Systems Supervisor in a Forward Signal Company; installs, operates and performs maintenance on communication subsystems and communications security devices; responsible for the health, morale, training, professional development and welfare of seven Soldiers; readiness of three AN/TSC 167(B) (STT) and three AN/TRC-190D (V)3 (HCLOS) valued at $1,829,013.00; plans, coordinates, and configures the direct installation, maintenance, and management of tactical satellite communication system for command and control in support of V Corps, USAREUR.

MOS 25S - Satellite Communication Systems Operator-Maintainer
Major Duties. The satellite communication systems operator-maintainer supervises, installs, operates, and maintains tactical and strategic multichannel satellite communications ground terminals, systems, networks, and associated equipment; supervises, installs, operates and maintains strategic earth terminal complexes to include associated antennas, ground terminals, technical control facilities, multiplexing and COMSEC equipment; performs engineering quality control and continuity testing of circuits, trunks, links, systems, and facilities; operates and performs preventive maintenance checks and services (PMCS) on assigned communications equipment, vehicles, and power generators.
Major duties for MOS 25S at each level of skill are:
MOSC 25S10. Installs, configures, operates, aligns, conducts performance tests, and performs field level maintenance on tactical and strategic satellite communications systems and technical control facilities; analyzes diagnostics to isolate faults to the Line Replaceable Unit (LRU); installs, operates, and performs Preventative Maintenance Checks and Services (PMCS) and field unit level maintenance on COMSEC devices; operates and performs PMCS on assigned vehicles; installs, operates, and performs PMCS on assigned power generators.
MOSC 25S20. Supervises operations and assists team members in the installation and operation of tactical and strategic telecommunication systems and networks, including satellite communication systems and technical control facilities; supervises, performs and assists team members in the performance of field unit level maintenance on assigned communications equipment; requests logistical support; prepares input for statistical and operational reports; identifies and reports electronic jamming and deception and applies appropriate Electronic Counter Counter-Measures (ECCM).
MOSC 25S30. Plans, supervises and integrates the installation, operation and maintenance of tactical and strategic telecommunication systems and networks, including satellite communication systems and technical control facilities; establishes workloads, work schedules, and maintenance priorities; performs and supervises quality control inspections; provides subordinates technical assistance in resolving connectivity problems, complex maintenance faults, and during contingency situations; requests logistic support; trains subordinate personnel in the operation and maintenance of associated equipment; consolidates system and network statistics and reports and submits them to network control/management headquarters; executes telecommunications service orders; supervises and performs management and administrative duties related to personnel, systems operations, and logistics; performs coordination with Army, Joint, and commercial activities to accomplish distributed communications at all levels of command.
MOSC 25S40. Supervises, plans and directs the installation, operation and maintenance of tactical and strategic telecommunication systems and networks, including satellite communication systems and technical control facilities; performs Platoon Sergeant and technical staff duties; provides technical advice to commanders and assistance to subordinates; develops and ensures compliance with policy and procedures for all types of operational environments; determines capabilities and limitations of assigned equipment; disseminates telecommunications service orders to subordinate shifts, assemblages, or stations; conducts technical evaluations of equipment and facilities; establishes and maintains liaison with supported and supporting activities or units; organizes, instructs and counsels subordinate personnel; manages security programs for telecommunications operations.
MOS 25S50. Plans and supervises the configuration, operation, and maintenance of satellite and tech control facilities, large satellite earth terminals, network control centers, and transportable tactical satellite systems; provides technical advice to the commander and subordinate units or elements on the integration of joint communication systems and networks, strategic networks, and commercial interfaces; performs First Sergeant and technical staff duties.