Navy Communications: Planning, Data Links, and Satellite Systems

What are the two functions of Navy communications systems?

Strategic and Tactical communications.

What is the purpose of strategic communications?

To provide communications circuits for overall coordination of strategy throughout the Department of Defense.

What is the purpose of tactical communications?

To support commanders and operating forces with mission-level communications needed to execute current operations.

What does DISN stand for?

Defense Information Systems Network.

What type of services does DISN provide?

Secure and non-secure end-to-end communications services.

What are the characteristics of analog signals?

Uses electricity to transmit data by creating a continuous wave; more susceptible to noise.

What are the characteristics of digital signals?

Uses electrical impulses to transmit data in ON/OFF pulses; can be transmitted more accurately and quickly.

What is noise in the context of communications?

Unwanted electrical/electromagnetic energy that degrades signal quality.

What is the definition of RF communications?

Use of electromagnetic energy for transmission and reception of information.

What is the role of a transmitter in RF communications?

Converts information into an RF signal.

What is the role of a receiver in RF communications?

Converts the received RF signal back into usable information.

What does LOS stand for in communications?

Line of Sight.

What is the range limitation of LOS communications?

Limited by antenna height, curvature of the Earth, terrain, and obstructions.

What does BLOS stand for?

Beyond Line of Sight.

What are the frequency bands emphasized in Navy communications?

HF, VHF, UHF, SHF, EHF.

What does HF stand for and its typical range?

High Frequency; commonly associated with 3-30 MHz.

What does VHF stand for and its typical range?

Very High Frequency; commonly associated with 30-300 MHz.

What does UHF stand for and its typical range?

Ultra High Frequency; commonly associated with 300 MHz-3 GHz.

What does SHF stand for and its typical range?

Super High Frequency; commonly associated with 3-30 GHz.

What does EHF stand for and its typical range?

Extremely High Frequency; commonly associated with 30-300 GHz.

What is the function of an antenna in communications?

Converts electrical energy to electromagnetic energy for transmission and vice versa for reception.

What is baseband equipment used for?

Connectivity to the gateway, including MODEMS and cryptographic devices.

What is the purpose of the communications status board?

To provide frequencies and other information for quick reference by operators.

What types of information are tracked on the communications status board?

Circuit name, priority, transmit/receive paths, frequency, channel, crypto/keymat, terminal, line/trunk, remarks/status.

What does the acronym AN/USC-61(V)1 represent?

Small Ship Variant (SSV).

What does the acronym AN/USC-61(V)2 represent?

Force Level Variant (FLV).

What does the acronym AN/USC-61(V)3 represent?

Unit Level Variant (ULV).

What is the significance of the SEATEL 9797B-07?

It is a commercial/SATCOM terminal listed in the notes.

What is OPTASK COMMS?

The primary operational communications planning document that provides standardized information for establishing, operating, managing, and restoring communications circuits.

What information does OPTASK COMMS contain?

Communications instructions, assignments, circuit information, call signs, frequencies, satellite information, and procedures needed by operators.

How is the OPTASK COMMS document organized?

It is organized for operators to quickly find required circuit and system information.

What is the purpose of the COMPLAN?

To organize the circuits and communications requirements supporting an operation.

What does the COMPLAN include?

Circuit designations, frequencies, equipment, assignments, priorities, and other information needed to establish and maintain communications.

What is the FREQPLAN?

The core of both the OPTASK COMMS and the COMPLAN, helping to minimize interference and maximize communications services.

What is one action involved in OTC frequency-management?

Verify assigned frequencies meet minimum separation criteria and are free from intermodulation interference.

What does the Real Time Spectrum Operations (RTSO) report track?

It helps track who is using portions of the electromagnetic spectrum.

What is the significance of establishing priorities for nets?

It helps operators decide which circuits to restore first after system failure or communications loss.

What is an After Action Report (AAR)?

A document used to document mission/communications performance, problems, lessons learned, and recommended improvements after an operation.

What is the AAR development process?

Determine if an AAR is required, collect information, consolidate inputs, draft comments, and route through the chain of command.

What is the purpose of the Satellite Access Authorization (SAA)?

To provide formal authorization and technical information for satellite access.

What common information is included in the SAA?

Time frame for access, satellite assigned and frequencies, modulation, and coding parameters.

What does the SAR initiate?

A ship's satellite-access requirement for an upcoming mission.

What is the submission timeline for a naval-message SAR?

Approximately 30-60 days before the operation.

What is the structure of a commercial SAR?

It consists of FRONT MATTER, SAR/OPERATIONAL REMARKS, and final REMARKS/JUSTIFICATION.

What is the role of the communications status board?

It is populated from COMPLAN/OPTASK information to provide operators with a quick-reference display.

What is the importance of frequency guard bands?

They protect frequencies that are not available or require protection.

What is meant by 'circuit guarding requirements'?

It refers to how closely a circuit is monitored, which can vary based on mission priority.

What should be included in the opening remarks of an SAA?

Warnings of possible loss of satellite access, frequency-clearance requirements, and satellite-access start and end periods.

What does the term 'DAMA channelization plan' refer to?

A plan that identifies which circuit will use which channel for communication.

What is the significance of constructive comments in AARs?

They focus on mission impact, causes, corrective actions, and recommendations rather than vague complaints.

What is the purpose of collecting information during a mission for AARs?

To document communications problems, circuit performance, equipment issues, and corrective actions.

What does the term 'satellite access' imply?

The ability to configure equipment correctly for the assigned satellite resource.

What is the role of external support points of contact in SAA?

They provide assistance and information regarding satellite access and configuration issues.

What is the impact of mission priority on satellite access?

Access may change based on mission priority and availability.

What is included in the front matter of a communication message?

Date, ship/FROM, TO addressees, AOR, classification, message identification, subject, references, policies/procedures.

What details are typically found in the SAR/operational remarks?

Requested satellite authorization details: mission, time frame, purpose, parameters, terminals, antennas, modems, aggregate data rates.

What is the purpose of the Mission Overview section?

To provide points of contact, mission type, purpose, priority, and time frame for satellite access.

What is the significance of the Communications Officer (COMMO) in a ship's POC?

NAVNETWARCOM requires the ship POC to be the Communications Officer.

What are the four types of satellite frequency bands mentioned?

Ku-band, C-band, X-band, Ka-band.

What throughput values are available for satellite communication?

Values range from 0.256 Mbps to 8.192 Mbps.

What does a Gateway Access Request (GAR) include?

Equipment-string configuration information to match ship and shore circuit requirements.

What is the role of the PP3SK request form?

It is sent to DISA gateway operations after receipt of an SSA from NCTAMS.

What is Link 11 used for?

To exchange tactical information among participating units/joint units.

What is the operational range of Link 11?

Line of Sight (LOS) / Beyond Line of Sight (BLOS) depending on transmission method.

What is the primary purpose of Link 16?

High-capacity, secure tactical information exchange among joint and allied participants.

What capabilities does MTS provide?

Real-time communications, two-way data, increased security, low-latency exchange, high-capacity information exchange.

What is UTS primarily used for?

Situational feedback from combatant commanders to the Missile Defense Agency.

What is the purpose of JREAP-C?

To support the exchange of information among joint services, NATO, and Allied forces.

What is the operational distance for JREAP-C?

Beyond Line of Sight (BLOS).

What is the critical role of Aegis BMD communications?

To ensure reliable two-way, low-latency tactical data exchange between U.S. Navy tactical data systems.

What are the responsibilities of an Information Systems Technician (IT) in Aegis BMD?

Operates communications and shipboard network equipment; maintains communications between Aegis BMD-equipped ships.

What is the consequence of errors in Aegis BMD operations?

Errors are treated seriously as they can have major consequences for national defense.

What does the Circuit/Satellite Configuration section contain?

A long set of fields used on communications status boards, satellite plans, and circuit configuration products.

What is the importance of mission type and purpose in satellite communication requests?

It determines throughput priority and requires greater detail for increased bandwidth requests.

What is the significance of the time frame in satellite access requests?

It specifies the requested satellite-access period with beginning and ending Date-Time Groups (DTG).

What are the operational parameters for satellite communication requests?

They include requested frequency band, throughput, and terminal/modem options.

What is the role of the Electronics Technician (ET) in Aegis BMD?

Operates, maintains, and repairs command-and-control, information, sensor, and reconnaissance systems.

What does the Gunner's Mate (GM) do in Aegis BMD?

Listed as a critical supporting rate/position in Aegis BMD operations.

What is the purpose of tactical data link circuits like Link 11 and Link 16?

To facilitate real-time data exchange among military units for operational coordination.

What is the operational characteristic of STJ?

A real-time satellite communications network used to exchange J-series messages via UHF.

What are the two primary functions of Navy communications systems?

Strategic and tactical.

What is FREQPLAN?

The core of OPTASK COMMS and COMPLAN, designed to minimize interference and maximize use of the RF spectrum.

What are the three steps emphasized during OPTASK COMMS development?

Prioritize nets, determine guarding, develop DAMA channelization.

What does RTSO report help the IWC track?

Who is using portions of the electromagnetic spectrum.

What is the difference between SAA and SAR?

SAA authorizes/provides configuration; SAR requests access.

What are the three main parts of a commercial SAR?

Front matter, SAR/operational remarks, final remarks/justification.

How far in advance should a commercial SAR be submitted?

Approximately 30-60 days before operation.

What are the four requested satellite bands in the SAR operational-parameter list?

Ku, C, X, Ka.

List the throughput options from highest to lowest.

8.192, 6.144, 4.096, 3.072, 2.048, 1.544, 1.024, 0.768, 0.512, 0.256 Mbps.

What equipment examples are considered baseband equipment for gateway connectivity?

Modems and cryptographic devices.

What does GAR stand for and what configuration problem does it solve?

Gateway Access Request; it communicates equipment-string/configuration information.

What are the main capabilities of MTS?

Real-time/two-way data, improved security, low latency, high capacity, multipoint joint/NATO/allied exchange.

What is UTS used for?

Situational awareness and direct communications among joint commands/fleet/ships/command centers.

Compare JREAP-C and STJ by transport/frequency and range.

JREAP-C: SHF/BLOS; STJ: UHF SATCOM/BLOS.

What does KEYMAT identify?

The keying material used to encrypt/decrypt a signal.

What does the GUARD field identify in a DAMA configuration?

The guard number connecting the DAMA channel to the DAMA net.

What are the IT responsibilities in Aegis BMD?

Operate communications and shipboard network equipment; maintain communications among BMD-equipped ships.

What are the ET responsibilities in Aegis BMD?

Operate/maintain/repair C4ISR systems and maintain communications antennas.

What does the FCA maintain/operate?

SPY-1 radar and Aegis Weapon System computers/displays.

Why are BMD communications errors treated seriously?

Because outages or wrong data can affect operator safety, mission execution, and national-defense decisions.