SCCC Study Guide

Focus Areas

This is not comprehensive for all materials covered in SCCC, but these are the highlights. All contents are testable, mastering these concepts will allow you to pass. There are 50 questions on this exam.

Every area links straight into flashcards or practice filtered to it. With 16 areas and 50 questions on the exam, that is about 3.1 questions each - which is how the study pages weight a set.

  1. RF Physics & Propagation Modules B, E, F

    Wave propagation mechanics, earth conductivity, and ionospheric refraction.

    • HF Paths: Ground wave (surface/direct/reflected) vs. Sky wave (ionospheric refraction).
    • Conductivity: Salt water vs. Dry soil.
    • Skip Zone: Region between end of ground wave and first returning sky wave.

    EmploymentUse Sky Wave / NVIS for BLOS over restrictive terrain; model links in SPEED using accurate soil/foliage indices.

    51 core / 116 focused cards29 core / 60 focused questions

    LessonsERadio Wave Propagation, EHF Radios and Waveforms, EHF Frequency Prediction with VOACAP, ETactical Radio Planning Tools - SPEED, BSignal Science

  2. Antenna Theory Modules E, F

    Radiation profiles and High-Frequency field configurations.

    • Isotropic/Omnidirectional: Theoretical equal radiation pattern.
    • HF Types: Half-wave Dipole, Long-Wire, NVIS, Inverted-V.

    EmploymentSelect omnidirectional whips for mobile maneuver elements; deploy directional wire arrays for static command nodes.

    22 core / 26 focused cards11 core / 12 focused questions

    LessonsEAntenna Theory and Antenna Selection

  3. Spectrum & Frequency Bands Modules B, E, F

    Electromagnetic spectrum classification and SATCOM band designations.

    • Bands: VHF (30-300 MHz), UHF (300 MHz-3 GHz), SHF (3-30 GHz), EHF (30-300 GHz).
    • SATCOM Letters: UHF (narrowband), X-band (military core), Ku/Ka-band (broadband).

    EmploymentBalance bandwidth throughput against environmental attenuation (e.g., rain-fade vulnerability at SHF/EHF).

    29 core / 73 focused cards16 core / 38 focused questions

    LessonsBSpectrum Management, EUHF, TACSAT and MUOS, FFundamentals of Satellite Communications

  4. Tactical Transceivers (CNR) Modules B, E

    SINCGARS operating states and FM waveform cross-platform alternatives.

    • Keypad Displays: 3-digit readouts (e.g., 301) indicate operational modes (Single Channel, FH, Cue, Sync).
    • FM Redundancy: Multi-band transceivers (AN/PRC-152, AN/PRC-117G, AN/PRC-148, AN/PRC-158).

    EmploymentRapidly transition critical FM combat nets to tactical handhelds/manpacks when primary RT-1523 assets are constrained.

    32 core / 79 focused cards18 core / 37 focused questions

    LessonsEVHF FM, SINCGARS and Retransmission, EITN Radios and Equipment, EIntegrated Tactical Network Waveforms

  5. Terrestrial Transport & Baseband Modules B, G

    Signal flow boundaries and high-capacity Line-of-Sight relays.

    • Baseband: Unmodulated user data/switching (Routers, Switches, Workstations).
    • Transport: Modulated RF carriage over distance (HCLOS, TRILOS, Tropo).
    • NSG: Network Service Gateway bridges baseband LANs to transport.

    EmploymentEnsure strict Fresnel zone clearance for terrestrial space-wave links; verify NSG translation between LAN and WAN trunks.

    29 core / 90 focused cards18 core / 65 focused questions

    LessonsFHCLOS, TRILOS and Troposcatter, FBaseband Nodes - THN, JNN, CPN and SSS, FTactical Network Architecture and the Tactical Internet Tiers, DNetwork Signal Flow, FTactical Relay-Tower AN/TRC-219

  6. Orbital Mechanics & Satellites Modules B, F

    Space segment geometry, orbital layers, and footprint coverage.

    • Orbits: LEO (low latency), MEO (GPS constellation), GEO (24-hr stationary footprint), HEO/Molniya (highest apogee-to-perigee ratio).
    • Footprint: Geographical ground area illuminated by transponder beam.

    EmploymentPosition satellite links based on orbital dwell times; leverage MEO for precision timing and GEO for static high-capacity reachback.

    29 core / 47 focused cards16 core / 25 focused questions

    LessonsFFundamentals of Satellite Communications, BSignal Support to the Space Domain

  7. Tactical SATCOM & Channel Access Modules B, F, G

    Multi-access channel allocation, expeditionary terminals, and regional nodes.

    • MF-TDMA: Dynamic multi-frequency time-slot burst sharing.
    • T2C2 Lite (AN/TSC-232): Inflatable VSAT supporting dual enclaves (e.g., NIPR/SIPR).
    • RHN/FRHN: 5 Global Fixed Regional Hub Nodes provide strategic gateway reachback.

    EmploymentOptimize tactical satellite bandwidth without dedicated SCPC channels; extend dual security enclaves to early-entry command posts.

    24 core / 62 focused cards24 core / 42 focused questions

    LessonsFRegional Hub Nodes, STEP and Satellite Access Requests, FSATCOM Terminals, FT2C2, TRILOS and Global Broadcast Service, FPoint of Presence and Soldier Network Extension

  8. Layered Networking & OSI Model Modules D, G

    OSI 7-layer architecture, device segmentation, and basic diagnostics.

    • Layer 2 (Data Link): MAC addressing, switches segment collision domains.
    • Layer 3 (Network): IP logical addressing, routers segment broadcast domains.
    • Diagnostics: ping (L3 connectivity), traceroute (path latency), ipconfig (host IP config).

    EmploymentIsolate local network congestion at Layer 2; route cross-subnet traffic and contain broadcast storms at Layer 3 network boundaries.

    39 core / 107 focused cards32 core / 60 focused questions

    LessonsDThe OSI Model and Switching Technologies, DNetwork Technologies: Routing, VLANs and Tunneling, DNetwork Architecture: Components, IA Devices and Servers

  9. IPv4 Subnetting & Address Classes Modules D

    Network classes, address math, and private address blocks.

    • Class Defaults: Class A (/8), Class B (/16), Class C (/24 -> 255.255.255.0).
    • Formulas: Subnets = 2^n (n = borrowed bits); Usable Hosts = 2^h - 2 (h = host bits).
    • Private Ranges: RFC 1918 (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16).

    EmploymentStructure tactical subnets to balance address conservation against host capacity; establish local default gateways.

    15 core / 24 focused cards13 core / 17 focused questions

    LessonsDIP Addressing Schemes and Subnetting

  10. Protocols & Virtualization Modules D, G

    Standard service ports, dynamic routing metrics, and hypervisor architectures.

    • Service Ports: HTTP (80), DNS (53), DHCP (67/68).
    • OSPF: Link-state protocol calculating shortest path using interface Cost (Bandwidth).
    • Virtualization: Type-1 (Bare Metal / ESXi) runs on bare hardware; Type-2 (Hosted) runs on an OS.

    EmploymentDeploy Type-1 hypervisors on tactical server stacks for low overhead; utilize OSPF for rapid dynamic convergence across tactical WANs.

    21 core / 78 focused cards15 core / 52 focused questions

    LessonsDTransport Concepts, DNetwork Technologies: Routing, VLANs and Tunneling, GTactical Server Infrastructure, BCCS and virtualization, DCloud Fundamentals

  11. Mission Command Systems (MCIS) Modules A, G

    Warfighting Function (WfF) systems integration and operational visualization.

    • System Mapping: JBC-P (Movement & Maneuver/C2), TAIS (Airspace), AFATDS (Fires), DCGS-A (Intel).
    • JBC-P Capabilities: Blue Force Tracking, free-text messaging, variable tactical data file exchange.

    EmploymentMaintain the Common Operational Picture (COP); synthesize multi-domain feeds to enable Commander decision cycles.

    46 core / 122 focused cards46 core / 90 focused questions

    LessonsGMission Command Information Systems primer, GIndividual Mission Command Information Systems, GBlue force platforms and Mounted Mission Command, GDataflow in Mission Command Information Systems, GThe Command Post Computing Environment, AFundamentals of Mission Command, ACommand and Control

  12. Data Interchange & Federation Modules G

    Tactical directory services and middleware server federation.

    • Tactical Data Repositories: LDIF schemas store hostnames, IPs, roles, and Unit Reference Numbers (URNs).
    • DDS: Data Dissemination Server federates and synchronizes MCIS data across nodes.

    EmploymentEnsure consistent system role assignments and directory schemas to prevent digital fragmentation across the tactical network.

    21 core / 62 focused cards25 core / 42 focused questions

    LessonsGTechnical configuration - the battalion DDS server, GEnterprise server roles and services, GData products and cutsheets, GMission command services and the CPOF server infrastructure

  13. Signal Staff Planning (MDMP) Modules A, B, G

    S-6 MDMP deliverables, synchronization matrices, and running estimates.

    • MDMP Outputs: Annex K, PACE plan, Comm WARNORDs, link budget calculations.
    • Signal Running Estimate: Dynamic, continuously updated status of network capabilities/limitations.

    EmploymentIntegrate signal planning directly into the maneuver scheme; keep the running estimate active through all operational phases.

    54 core / 116 focused cards51 core / 82 focused questions

    LessonsAThe Military Decision-Making Process (MDMP), BMDMP as a Signal Officer, BSignal Annex H, GMCIS in Annex H, Appendix 7, EPACE Planning Considerations, FThe Signal Planning Process and Network Design, FCalculating Bandwidth Requirements

  14. Command Post Architecture Modules A, B, F

    Tactical command node structures and expeditionary support allocation.

    • 4 Battalion CPs: Main CP, Tactical CP (TAC), Combat Trains CP (CTCP), Field Trains CP (FTCP).
    • ESB / ESB-E: Expeditionary Signal Battalions scaled to support corps down to company command nodes.

    EmploymentBalance command post physical/electromagnetic survivability, mobility, and continuous C2 connectivity across dispersed sites.

    18 core / 92 focused cards23 core / 72 focused questions

    LessonsACommand Post Operations, FThe Scalable Network Node and the ESB-E, FTactical Communications Node and TCN-Lite, GTOCNET - the command post intercommunications system, EElectromagnetic Spectrum (EMS) Signature Reduction in a Tactical Environment

  15. Tactical Power & Grounding Modules B

    Generator load balancing, electrical safety, and engine protection.

    • Operational Range: Maintain diesel generators between 50% and 80% rated load.
    • Hazards: Underloading (<30%) causes unburnt fuel wet-stacking; overloading causes thermal trips.
    • Grounding: Directs fault current safely to earth.

    EmploymentSize generator plants accurately to mission SWaP requirements; prevent equipment damage and uncommanded power outages.

    13 core / 20 focused cards12 core / 14 focused questions

    LessonsBPower Distribution

  16. Readiness, Crew Validation & Doctrine Modules B, G

    Table qualification standards, leadership doctrine, and tactical mindset.

    • Decertification: Triggered if crew manning falls below 74% or upon departure of the certified crew chief.
    • Core Doctrine: FM 6-02 (Signal Support to Operations).
    • CTC Mindset: Shift from passive "help-desk" support to proactive warfighting C2 network integration.

    EmploymentEnforce crew drill proficiency; validate tactical communication teams prior to deployment; align network defense with maneuver.

    21 core / 76 focused cards26 core / 61 focused questions

    LessonsBSignal Doctrine, BIntroduction to Signal Operations, BSignal Support to Large-Scale Combat Operations, GThe role of the S6 and the digital crew, FNetwork Operations and Security Center