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Δ: Acquisition Milestone
1G: 1st Generation (Cell Phones – 2G, 3G, 4G)
3D: Three-Dimensional
A/C: Aircraft
AAG: Aeronautical Assignment Group
ABS: Anti-Lock Braking System
AC: Alternating Current; Advisory Circular; Air Conditioning
ACC: Acquisition Community Connection
ACAT: Acquisition Category
ACES: Automated Communication-Electronics Operations Instruction (CEOI) Elements System
ACQ: Acquisition
Active RFID Tag: An active RFID tag is battery powered, has an active onboard transmitter/antenna, and generates RF energy to the tag antenna. Active tags can transmit at greater distances then passive radio frequency identification (RFID) tags.
ACTS: Air Combat Training System
AD: Air Defense
ADC: Air Data Computer
Adjacent Signal: A signal whose fundamental frequency falls outside the 3 dB IF band pass of a receiver, but is close enough in frequency to be a potential interferer.
ADM: Air Data Module; Antenna Deployment Mechanism
AE: Applied Engineering
AESOP: Afloat Electromagnetic Spectrum Operations Program
AF: Air Force
AFB: Air Force Base
AFC: Area Frequency Coordinator
AFLCMC: Air Force Life Cycle Management Center
AFMC: Air Force Materiel Command
AFSCN: Air Force Satellite Control Network
AFSMO: Air Force Frequency Spectrum Management Office
Agile Reader: A reader that can read various types of RFID tags that are either produced by various manufactures and/or operate on different frequencies.
AGR: Air-to-Ground Ranging
Air Interface Protocol: Standards that control how RFID readers and tags communicate.
AIT: Automatic Identification Technology
AL: Absorption Loss
AM: Amplitude Modulation
AMDF: Army Master Data File
AMF: Airborne/Fixed Station
Amplitude Modulation: The amplitude of the carrier conforms to the fluctuations of a sound wave.
Amplitude-modulation (AM) transmitters: AM transmitters have two principle design types, either low-level modulated or high-level modulated. The low-level modulated transmitter is modulated at its low power stages, requiring little modulation power. The high-level modulated transmitter requires modulation power to be about 50% of the carrier's power. In order to amplify and faithfully reproduce the modulation, the power amplifiers must be linear. These are normally referred to as Class B linear amplifiers, which are much less than the Class C amplifiers employed in high-level modulated carrier amplifier. Because it operates over a large band of frequencies, the high power modulator must have linear power amplification to achieve low distortion.
AMPS: Afloat Master Planning System
AMSC: Army Management Staff College; Air Force Materiel Support Command
AMT: Aeronautical Mobile Telemetry
ANEP: Allied Naval Engineering Publication
AMTI: Air/Maritime Training Instrumentation
ANSI: American National Standards Institute
Antenna: An antenna is basically a transducer designed to radiate or receive radio waves. Antennas have the ability to convert radio frequency (RF) current into Electromagnetic (EM) waves vice-versa. They are designed to have a high ratio of radiation to total resistance, which determines the antennas' efficiency. Other factors in antenna design are a sufficient bandwidth to accommodate the frequency band transmitted, directivity, and the restriction of the solid angle of radiation. With certain antennas, it is possible to suppress radiation of harmonic frequencies which may cause interference.
Anti-Collision: Method of reading information from multiple RFID tags from a single RFID reader field simultaneously without interference (see collision).
AoA: Analysis of Alternatives
APB: Acquisition Program Baseline
APT: Asia-Pacific Telecommunity
ARFA: Allied Radio Frequency Agency
ARP: Aerospace Recommended Practice
ASD: Assistant Secretaries of Defense
ASD/NII: Assistant Secretary of Defense for Networks and Information Integration
ASM: Army Spectrum Manager
ASMO: Army Spectrum Management Office
ASN RD&A: Assistant Secretary of the Navy (Research, Development and Acquisition)
ASOC: Air Support Operations Center; Advanced Source Operations Course
ASTM: American Standard Test Method
ASW: Anti-Submarine Warfare
AT&L: Acquisition, Technology, and Logistics
ATM: Automatic Teller Machine
Attenuation: The decrease in the power of a signal as the result of transmission between points in a medium, usually expressed in decibels (dB).
ATU: African Telecommunications Union
Average Power: The power averaged over a time interval that is long compared with the period of the lowest frequency encounter in the modulation.
AVGAS: Aviation Gas/Fuel
AVI: Aerospace Vehicle Inventory (Air Force)
AWACS: Airborne Warning and Control System
AWG: American Wire Gauge
AWS: Advanced Wireless Services
Azimuth Angle: The azimuth of an object is the angle, centered on an observer and measured clockwise in a horizontal plane, between true north and the vertical plane containing the object.
 
Backscatter: The method of communication between an RFID reader and passive RFID tag - the reader transmits an RF signal to the tag and a modulated signal is "reflected" back to the reader from the RFID tag.
Bandpass Filter: A device that provides rejection to signals that are either higher than its upper frequency limit or lower than its lower limit. Signals at frequencies between the upper and lower limits are not attenuated significantly.
Bandwidth: The difference, in Hz, between the limiting frequencies of a frequency band.
Bandwidth, IF: The spread in frequency between the half-power points in a receiver IF response curve.
Bandwidth, Necessary: For a given class of emission, the minimum value of the occupied bandwidth sufficient to ensure the transmission of information of information at the rate and with the quality required for the system employed, under specified conditions. Emissions useful for the good functioning of the receiving equipment, such as the emission corresponding to the carrier of reduced carrier systems, shall be included.
Bandwidth, Occupied: The frequency bandwidth such that, below its lower and above its upper frequency limits, the mean powers radiated are equal to 0.5% of the total mean power radiated by a given emission.
Bandwidth, RF: The spread in frequency between the half-power points on a receiver RF response curve.
Basis: Battlefield Automated SINCGARS Information System
BBA: Balanced Budget Act of 1997
BDI: Battle Damage Indicator
BDU: Bridge Display Unit
Beamwidth: The width of an antenna beam, in degrees or mils, measured at the 3 dB points.
BG: Battle Group
Bit Error Rate: The probability that a transmitted bit is erroneously interpreted at the receiver.
Bit Rate: In the transmission of data, the number, per unit of time, of binary digits (or pulses) which pass a given point in a continuous stream. Usually expressed in bits per second.
Blanking: A technique for avoiding pulsed interference whereby a receiver is turned off for the duration of each undesired pulse.
BN (Bn): Battalion
Bonding: The process of obtaining a high degree of electrical conductivity between metallic parts.
BPL: Broadband-Over-Power Lines
BR: Basic Restrictions
BS: Bachelor of Science (Degree)
Burnout: In a receiver, burnout refers to component damage resulting from the reception of excessive power.
BW: Bandwidth
 
c: Speed of light (3 X 10E10 cm/s)
C: Capacitor
C-E: Communications-Electronics; Communications Equipment
C2: Command and Control: The exercise of authority and direction by a properly designated commander over assigned and attached forces in the accomplishment of the mission. Command and control functions are performed through an arrangement of personnel, equipment, communications, facilities, and procedures employed by a commander in planning, directing, coordinating, and controlling forces and operations in the accomplishment of the mission.
C2IP: Command and Control Initiatives Program
C2ISR: Command and Control, Intelligence, Surveillance and Reconnaissance
C3I: Command, Control, Communications and Intelligence
C4: Command, Control, Communications, and Computers
C4I: Command, Control, Communications, Computer and Intelligence
C5LB: Command, Control, Communications, Computer, and Cyber (C5) Leadership Board
CAE: Computer-Aided Engineering; Common Applications Environment
CAOC: Combined Air Operations Center
CAPE: Cost Assessment and Program Evaluation (Office)
Carrier: A deliberate EM emission that carries intelligence through a modulation of one or more of its characteristics.
Carrier-to-noise Ratio (C/N): The ratio of the power of the carrier component of a signal to that of the noise in the circuit.
CB: Citizen's Band (Radio)
CBRN: Chemical, Biological, Radiological, and Nuclear
CBS-X: Continued Balance System - Expanded
CCA: Clinger-Cohen Act
CCEB: Combined Communications-Electronics Board
CCMD: Combatant Command
CDD: Capabilities Development Document: A formatted document prepared by the user that builds upon the ICD to identify operational performance parameters necessary to design an affordable and militarily useful increment of capability. In addition to identifying performance parameters for the current increment (including key performance parameters (KPPs)), the CDD will outline the overall strategy to develop the full or complete capability through future increments. The CDD supports the Milestone B decision.
CDR: Conceptual Design Report
CDRL: Contract Deliverables Requirements List
C-E: Communications-Electronics; Communications Equipment
CE: Conducted Emission
CEMA: Cyber Electromagnetic Activities
CENELEC: Comite Europeen de Normalisation Electrotechnique (European Committee for Electrotechnical Standardization
CEO: Communication-Electronics Officer
CEOI: Communication-Electronics Operations
CEPT: European Conference of Postal and Telecommunications Administrators
CFE: Contractor Furnished Equipment
CFFC: Commander Fleet Forces Command
CFR: Code of Federal Regulations
CHSENG: Chief Systems Engineer
CI: Commercial Items: Articles of supply readily available from established commercial distribution sources which the Department of Defense or inventory managers in the Military Services have designated to be obtained directly or indirectly from such sources.
CIO: Chief Information Officer; Chief Intelligence Officer; Command Information Office
CISPR: International Special Committee on Radio Interference
CITEL: Inter-American Telecommunication Commission
CIWS: Close-In Weapon System
CJCS: Chairman of the Joint Chiefs of Staff
CJCSI: Chairman of the Joint Chiefs of Staff Instruction
CJSMPT: Coalition Joint Spectrum Management Planning Tool
cm (Cm): Centimeter
CM: Common Mode (Current)
CMB: Configuration Management Board
CMD: Commercial Mobile Device
CMRR: Common Mode Rejection Ratio
CNO: Chief of Naval Operations
CNSSP: Committee on National Security Systems
COCOM: Combatant Command
COI: Critical Operational Issues; Conflict of Interest; Current Operations and Intelligence
Collision: Signals from tags and readers interfering (colliding) with one another.
Compton Effect/Compton Scattering: is the increase in wavelength of a gamma ray photon when it interacts with matter. Light must behave as if it made up of particles in order to explain the Compton scattering. The interaction between high energy photons and electrons results in the electron being given part of the energy (making it recoil), and a photon containing the remaining energy being emitted in a different direction from the original, so that the overall momentum of the system is conserved. If the photon still has enough energy left, the process may be repeated.
COMSEC: Communications Security
Contactless Smart Card: Is a buyer or credit card with an onboard RFID chip that can transmit its information without being swiped like a typical credit card.
CONOPS: Concept of Operations
CONUS: Continental United States
CoP: Community of Practice (DAU ACC)
Cosite: Refers to collocation on the same vehicle, station or base. Equipment so located is often subject to interference because of its proximity to other equipment.
COTS: Commercial off-the-shelf: Commercial items that require no unique government modifications or maintenance over the life cycle of the product to meet the needs of the procuring agency.
Coupling Loss: The decrease in coupling between two points.
CPD: Capabilities Production Document: A formatted document prepared by the user, and refined from the CDD, to identify production attributes specific to a single increment of capability. The CPD supports the Milestone C decision.
CR: Combination Radio
CRC: Communications Relay Center
CRD: Capstone Requirements Document: A document that contains performance-based requirements to facilitate development of individual operational requirements documents by providing a common framework and operational concept to guide their development.
CREW: Counter Remote Control Improvised Explosive Device (RCIED) Electronic Warfare
CS: Conducted Susceptibility
CSDA: Connecting Soldiers to Digital Applications
CSEA: Commercial Spectrum Enhancement Act
CSMAC: Commerce Spectrum Management Advisory Committee
CTTA: Certified TEMPEST Technical Authority
CW: Continuous Wave
 
D.C.: District of Columbia
DAB: Defense Acquisition Board
DARPA: Defense Advanced Research Projects Agency
DAS: Defense Acquisition System
DASD(SE): Deputy Assistant Secretary of Defense (Systems Engineering)
DAU: Defense Acquisition University
dB: A dimensionless unit equal to ten times the logarithm (to the base 10) of the ratio of two power levels.
dBi: A unit of antenna gain. The number of decibels referenced to the 0 dB directivity of a free-space isotopic radiator.
dBW: Power, expressed in decibels referenced to one Watt.
DC: Direct Current
DCA: Defense Communication Agency
DCGS: Defense Common Ground System; Distributed Common Ground System
DCIO: Deputy Chief Information Officer
DCP: Datalink Control Processor
DCS: Defense Communication System
DD: Department of Defense (as in DD FORM 1494)
DDR&E: Director of Defense Research and Engineering
DECC: Defense Enterprise Computing Centers
Degradation: A decrease in the detection capability of a receiver as the result of interference, noise, or distortion.
Demodulation: The process of recovering the intelligence signal from the carrier signal on which it was superimposed.
DEPSO: Departmental Standardization Office
Desensitization: The reduction of desired signal gain as the result of receiver reaction to an undesired signal. The gain reduction is generally due to overload of some portion of the receiver, resulting in desired signal suppression because the receiver will no longer respond linearly to incremental changes in input voltage.
Deviation Ratio: Ratio of the maximum frequency deviation to the maximum modulating frequency of a frequency modulation system, under specified conditions.
DFARS: Defense Federal Acquisition Regulation; DoD Federal Acquisition Regulation
DI: Design Instruction
DIA: Defense Intelligence Agency; Director of Intelligence Agency
DID(s): Data Item Description(s)
DIESC: DoD/Industry Electromagnetic Effects Standards Committee
Differential Phase Shift: A change in phase of a field quantity, at the output port of a network, produced by an adjustment of the electrical properties or characteristics of the network.
DII: Defense Information Infrastructure
DISA: Defense Information Systems Agency: DOD agency responsible for information technology and is the central manager of major portions of the Defense Information Infrastructure (DII).
Discriminator: An electronic device that converts variations in frequency or phase to corresponding variations in amplitude.
Distortion: An undesired change in a waveform, usually the result of a nonlinear relationship between input and output, or non uniform transmission at different frequencies, or a phase shift non-proportional to frequency.
DKO: Defense Knowledge Online
DM: Differential Modulation (Current)
DMSP: Defense Meteorological Satellite Program
DoC: Department of Commerce
DoD: Department of the Defense
DoDD: Department of Defense Directive
DoDI: Department of Defense Instruction
DON: Department of the Navy
DOT: Department of Transportation
DOT&E: Director, Operational Test and Evaluation: Oversees programs by preparing system vulnerability and limitation reports for the Warfighter.
Double-conversion receivers: These receivers resolve the conflict between image rejection and sensitivity. A double-conversion receiver has two mixers, two local oscillators, and two intermediate frequencies. The first intermediate frequency is at a high frequency, providing a great separation between the signal/image. The second intermediate frequency is at a low frequency, allowing practical construction of selective filters and amplifiers.
DSA: Dynamic Spectrum Access
DSCS: Defense Satellite Communication System
DSMA: Defense Spectrum Management Architecture
DSMAC: Digital Scene Matching Area Correlation
DSO: Defense Spectrum Organization
DSP: Defense Standardization Program
DSSG: Data Standard Study Group
DT&E: Developmental Test & Evaluation
DTM: Directive Type Memorandum
DTN: Disruption Tolerant Networking
DTRA: Defense Threat Reduction Agency
Ducting: Trapping of an electromagnetic wave between two layers of the troposphere, or between a layer of the troposphere and the earths surface.
Duplexer: A device that uses the finite delay between the transmission of a pulse and the receipt of an echo to permit the use of the same antenna for both transmitting and receiving. Duplexes are commonly used in radar systems.
Duty Cycle: In a pulsed electronic device, the ratio of the average pulse duration to the average pulse spacing. This is numerically equivalent to the ratio of the average power to peak pulse power, and also to the product of the average pulse duration and the pulse repetition rate. The value is usually expressed in percent.
Dynamic Range: The difference, is dB, between the overload level and the minimum acceptable signal level in a system. The minimum acceptable signal level of a system is normally fixed by: noise level, low-level distortion, interference level, or resolution level.)
 
E-Field: Electric Field
E-O: Electro-Optical
E2E: End-to-End
E2ESS: End-to-End Spectrum Supportability
E3: Electromagnetic Environmental Effects: The impact of the electromagnetic environment upon the operational capability of military forces, equipment, systems and platforms. It encompasses all electromagnetic disciplines, including electromagnetic compatibility and electromagnetic interference; electromagnetic vulnerability; electromagnetic pulse; electronic protection, hazards of electromagnetic radiation to personnel, ordnance, and volatile materials; and natural phenomena effects of lightning and precipitation static.
E3IAR: E3 Integration and Analysis Report
E3 IPT: E3 Integrated Product Team
E3VP: E3 Verification Procedures
E3VR: E3 Verification Report
EA: Electronic Attack
EAS: Electronic Article Surveillance
EC: European Community: The European Union (EU) is a union of fifteen independent states based on the European Communities and founded to enhance political, economic and social co-operation. Formerly known as EC or European Economic Community (EEC).
ECAC: Electromagnetic Compatibility Analysis Center - see Joint Spectrum Center
ECCM: Electronic Counter Countermeasures
ECM: Electronic Countermeasures
ECP: Engineering Change Proposal
EEC: European Economic Community
EED: Electro-Explosive Device; Electronic Explosive Device
Effective Earth Radius: The value used in place of the geometric radius of the earth to correct for atmospheric refraction when the index of refraction in the atmosphere changes linearly with height.
EHF: Extremely High Frequency: 30-300 GHz
EID: Electrically Initiated Device
EIRP: Effective Isotropic Radiated Power: the amount of power that would have to be emitted by an isotropic antenna to produce the peak power density observed in the direction of maximum antenna gain. EIRP is often stated in terms of decibels over a reference power level, that would be the power emitted by an isotropic radiator with an equivalent signal strength.
EL-CID: Equipment Location-Certification Information Database
ELF: Extremely Low Frequency
EM: Electromagnetic
EMAC: Electromagnetic Mission Assurance Center
EMC: Electromagnetic Compatibility
EMCAB: Electromagnetic Compatibility Advisory Board
EMCAS: Electromagnetic Compatibility Assurance Software
EMCIP: Electromagnetic Interference Control Plan
EMCON: Emission Controls
EMCPP: Electromagnetic Compatibility Program Plan
EMCS: Electromagnetic Compatibility Standardization; Electromagnetic Compatibility Study
EMD: Engineering and Manufacturing Development
EME: Electromagnetic Environment: The resulting product of the power and time distribution, in various frequency ranges, of the radiated or conducted electromagnetic emission levels that may be encountered by a military force, system, or platform when performing its assigned mission in its intended operational environment. It is the sum of electromagnetic interference; electromagnetic pulse; hazards of electromagnetic radiation to personnel, ordnance, and volatile materials; and natural phenomena effects of lightning and precipitation static.
EMI: Electromagnetic Interference
EMICP: Electromagnetic Interference Control Procedures
EMITP: Electromagnetic Interference Test Plan
EMP: Electromagnetic Pulse: The electromagnetic radiation from a strong electronic pulse, most commonly caused by a nuclear explosion that may couple with electrical or electronic systems to produce damaging current and voltage surges.
EMPRESS: Environmental Pulse Radiation Environment Simulator for Ships
EMR: Electromagnetic Radiation
EMS: Electromagnetic Spectrum: The range of frequencies of electromagnetic radiation from zero to infinity. It is divided into 26 alphabetically designated bands.
EMS SSG: Electromagnetic Spectrum Strategy Senior Steering Group
EMV: Electromagnetic Vulnerability: Can be considered a special subset of the susceptibility side of EMI when the susceptibility causes unacceptable performance problems. A system is said to be vulnerable if its performance is degraded below a satisfactory level as a result of exposure to the stress of an operational electromagnetic field or transient. Typically, it refers to more serious problems that might affect personnel or system safety or might be exploitable by enemy forces.
Encl: Enclosed
Environment, Electromagnetic: The signal and noise complex within which communications-electronics devices, including weapons systems are operated.
EO: Executive Order
EOB: End of Buffer
EPC: Electronic Product Code: A 96-bit standard format code.
EPCglobal: A joint venture between GS1 (formerly EAN International) and GS1 US (American GS1 member - formerly the Uniform Code Counsil). EPCglobal has been set up to achieve worldwide adoption of Electronic Product Code (EPC) technology. One of EPCglobal's goals is to create a worldwide standard for RFID usage. http://www.epcglobalinc.org/home/
EPFCG: Explosively Pumped Flux Compression Generator
EPS: Engineering Practice Study; Engineering Performance Standards; Emergency Planning Subcommittee
ERMP: Extended Range Multi-Purpose
ESAD: Electronic Safe and Arm Device
ESC: Equipment Spectrum Certification
ESD: Electrostatic Discharge: The transfer of an electrostatic charge between bodies at different electrostatic potentials (voltages), caused by direct contact or induced by an electrostatic field.
ESG: Equipment Spectrum Guidance
ESG PWG: Equipment Spectrum Guidance Permanent Working Group
EU: European Union
EUT: Equipment Under Test
eV: Electron Volts
EW: Electronic Warfare
 
F-D: Frequency-Distance
F/E: Frequency/Environmental
FAA: Federal Aviation Administration
Fading: The variation of signal field intensity caused by changes in the transmission medium, and the transmission path, with time.
Far Field: The region of the field of an antenna where the angular field distribution is essentially independent of the distance from the antenna.
Far-Field Communication (RFID): Where the RFID reader and tag are separated by a distance of one full wavelength.
FARS: Frequency Assignment Retrieval System
FAS: Frequency Assignment Subcommittee; Federation of American Scientists
FCC: Federal Communications Commission
FCG: Flux Compression Generator
FD: Functional Design
FDA: Food and Drug Administration
FDDR: Full Deployment Decision Review
FDR: Fielding Decision Review
FEDLOG: Federal Logistics
FEMA: Federal Emergency Management Agency
FFAR: Folding Fin Aerial Rockets
FFT: Fast Fourier Transform
Filter: An electrical filter offers little opposition to the passage of certain frequencies while blocking the passage of other frequencies. Filters reduce conducted interference that differs from the desired signals. A filter may be reflective or lossy. Reflective filters present an impedance mismatch to unwanted frequencies, returning them to the input. A lossy filter filter absorbs unwanted frequencies. A filter can be designed on a time-domain basis as well as a frequency-domain basis.
FM: Frequency Modulation
FMO: Frequency Management Office
FNPRM: Further Notice of Proposed Rulemaking
FO: Fiber Optic
FOC: Full Operational Capability
FoS: Family of Systems
Fourier Transform: A mathematical operation for transforming a signal described in time domain parameters to its associated spectrum in the frequency domain.
FP: Frequency Panel
FR: Frequency Reuse
Frequency Division Multiplex (FDM): The process or device in which each modulating wave modulates a separate subcarriers and the subcarriers are spaced in frequency. Frequency division permits the transmission of two or more signals over a common path by using different frequency bands for the transmission of the intelligence of each message signal.
Frequency Dependent Rejection (FDR): The attenuation of a signal by an electronic circuit, normally a filter, caused by the combination of bandwidth mismatch and off-tuning. It is the sum of the on-tune rejection and the off-frequency rejection.
Frequency Modulation: FM is angle modulation where the the instantaneous frequency of a sine-wave carrier is caused to depart from the carrier frequency by an amount proportional to the instantaneous value of the modulating wave. The frequency of the carrier is made to fluctuate around an average axis, to correspond to the fluctuations of the modulating wave.
Frequency-Shift Transmission: The carrier frequency is shifted a fixed amount to correspond with combinations of pulse signals.
FRP: Federal Response Plan; Full Rate Production
FRRS: Frequency Resource Record System
FRS: Family Radio Service (U.S. citizen’s band personal radio service)
FSMS: Federal Spectrum Management System
FRP: Full Rate Production
FRS: Family Radio Service
FSMS: Federal Spectrum Management System
Fundamental Frequency: The reciprocal of the period of the wave, the lowest frequency component in the Fourier representation of a periodic quantity, or normally, the assigned frequency of an electromagnetic emission.
FW: Forward; Fixed-Wing
FY: Fiscal Year
 
Gen 2: (G2): Generation 2: Beginning in 2006, a second generation protocol. RFIDs operate in the UHF frequency range (860-960 MHz). Gen 2 conforms to FCC, European, and Asian UHF radio regs. Gen 2 protocol permits large amounts of data to be stored on a tag and allows customization of the content.
Gamma Rays: Electromagnetic radiation emitted by radioactive decay and having energies in a range from ten thousand (104) to ten million (107) electron volts.
GAO: Government Accountability Office; Governmental Affairs Office
GATE: Graphic Analysis Tool for EMEs : GATE is a PC-based intersite electromagnetic compatibility (EMC) analysis capability designed as a cull model to analyze the effect of introducing a new transmitter(s) and/or receiver(s) into an existing environment of RF equipment. GATE uses Frequency/Environmental (F/E) data provided by the Frequency Assignment Retrieval System (FARS) program whose output file is a Standard Frequency Action Format (SFAF) text file, the same file format used by programs like SPECTRUM XXI. GATE can perform a signal-to-interference (S/I) ratio, interference-to-noise (I/N) ratio, or power density analysis and generate line-of-sight contours and frequency distance curves.
GBU: Guided Bomb Unit
GEMSIS: Global Electromagnetic Spectrum Information System
GES: Government Information Systems
GSORTS: Global Status of Resource and Training System
GEU: Guidance Electronics Unit
GFE: Government Furnished Equipment
GHCC: Global Hydrology and Climate Center
GHz: Gigahertz
GIG: Global Information Grid
GMF: Government Master File
GPR: Ground Penetrating Radar
GPS: Global Positioning System
Grounds: Grounding is the establishment of an electrically conductive path between an electronic or electrical system element and a reference point or plane known as ground. Grounding is a circuit concept, bonding refers to the physical implementation of grounding. Grounding also refers to an electrical connection made to earth. Grounds for long wavelengths compared to the circuit dimensions are best connected directly to a single point in the system. For shorter wavelengths compared to the circuit dimensions, a multi point ground should be used to avoid the possibility of the ground lead becoming a fraction of a quarter-wavelength, and thus become a low impedance conductor.
GS1: global organization created to design and implement global standards and solutions to improve supply and demand chains globally. The GS1 system has four main areas: Barcodes, eCom, Global Data Synchronisation Network, and EPCglobal.
GSORTS: Global Status of Resource and Training System
HA: Hardness Assurance
Half Duplex: A circuit that permits communication between stations in only one direction at a time.
HAMS: Compellation of HA, HM and HS
Harmonic: A sinus ideal component of a periodic wave having a frequency that is an integral multiple of the fundamental frequency (e.g., harmonics of 60 Hz are 120 Hz, 180 Hz, 240 Hz etc).
HDBK: Handbook
HDTV: High-Definition Television
HEMP: High-Altitude Electromagnetic Pulse
HERF: Hazards of Electromagnetic Radiation to Fuel: The danger of creating sparks of sufficient magnitude to ignite flammable mixtures because of radio frequency electromagnetic fields.
HERO: Hazards of Electromagnetic Radiation to Ordnance: The danger of accidental actuation of electro-explosive devices or otherwise electrically activating ordnance because of radio frequency electromagnetic fields. This unintended actuation could have safety (premature firing) or reliability (dudding) consequences.
HERP: Hazards of Electromagnetic Radiation to Personnel: The danger of and the result of exposing personnel to unsafe levels of radio frequency electromagnetic fields.
Hertz: Unit of frequency equal to one cycle per second.
Heterodyne: The combing of two signal frequencies in a non-linear device, with the result that frequencies equal to the sum and difference of the input frequencies are produced.
HF: High Frequency: In communications, the nominal HF band extends from 2 MHz to 30 MHz.
High-Frequency (HF) RFID: RFID uses 13.56 MHz. This frequency allows a read distance of 3 to 4 inches for handheld readers and roughly up to 6 feet with a portal reader.
HIRF: High Intensity Radiated Field; High Intensity Radio Frequency
HM: Hardness Maintenance
HMS: Handheld, Manpack and Small Form Fit
HN: Host Nation
HNA: Host Nation Approval
HNC: Host Nation Coordination
HNSWDO: Host Nation Spectrum Worldwide Database Online
HOB: Height of Burst
HPM: High Power Microwave
HPRF: High-Power Radio Frequency (Weapons)
HS: Hardness Surveillance
HW: Hardware
Hz: Hertz: A unit of frequency equivalent to one cycle per second
 
I: Current
I/N: Interference-to-noise ratio
I/O: Input/Output
I&S: Integration and Support
IAR: Integration and Analysis Program
IAW: In Accordance With
IC: Individual Combatant
ICBM: Intercontinental Ballistic Missile
ICD: Initial Capabilities Document : A formatted document prepared by the user to articulate a capability gap that requires a materiel solution. The ICD identifies capability gap in terms of a particular functional area, describes the evaluation of different materiel approaches, and proposes a recommended materiel approach to be pursued. The ICD supports the Analysis of Alternatives (AoA), the Technology Development Strategy, and the Milestone A decision. The ICD is prepared and staffed in accordance with the CJCSI 3170.01.
ICIC: Inter-cell Interference Coordination
ID: Identify
IEC: International Electro-technical Commission
IEEE: Institute of Electrical and Electronics Engineers
IEMP: Internal Electromagnetic Pulse
IEW: Intelligence and Electronic Warfare
IF: Intermediate Frequency
IIC: Independent Inquiry Committee; Investigator-In-Charge
IMI: Intermodulation Interference
IMT-2000: International Mobile Telecommunications
IMU: Inertial Measurement Unit
INMARSAT: International Maritime Satellite
INST: Instruction
Interrogator: Another name for RFID reader.
IOC: Initial Operational Capability
IOT&E: Initial Operational Test and Evaluation
IPR: In-Progress Review
IPT: Initial Production Test; Integrated Planning Team
IR: Infrared
IRAC: Inter-department Radio Advisory Committee
IRFNA: Inhibited Red Fuming Nitric Acid
ISD: Integrated Systems Development
ISM: Industrial, Science and Medicine (Medical)
ISO: International Standards Organization
ISP: Information Support Plan
ISR: Intelligence, Surveillance and Reconnaissance
IT: Information Technology
ITS: Information Technology Systems: Any equipment, or interconnected system or subsystem of equipment, that is used in the automatic acquisition, storage, manipulation, management, movement, control, display, switching, interchange, transmission, or reception of data or information. IT includes computers, ancillary equipment, software, firmware, and similar procedures, services, and related resources.
ITU: International Telecommunications Union
 
J-5: Plans directorate of a joint staff.
J/S: Jamming-to-Signal (Ratio)
JCIDS: Joint Capabilities Integration and Development System
JCIE: Joint Collaborative Information Environment
JDAWS: Joint Spectrum Center Data Access Web Server
JEET: Joint E3 Evaluation Tool: JEET is a PC-based intersite EMC analysis capability that examines the potential for electromagnetic interference (EMI) between a system of interest and its operational electromagnetic environment. It quickly identifies other equipment capable of producing EMI interactions with the system of interest and the conditions under which EMI is likely to occur. JEET uses electronic and design parameters for the system under test and performs an analysis using an electromagnetic environment composed of nearly 40,000 DoD, government, civilian, and foreign systems. In addition, JEET allows the user to import or design a generic or operationally based laydown. JEET can perform an I/N ratio or power density analysis and generate frequency distance curves.
JEMSO: Joint Electromagnetic Spectrum Operations
JETS: Joint Equipment, Tactical and Space
JFACC: Joint Force Air Component Commander
JFMCC: Joint Force Marine Component Commander
JFMO: Joint Frequency Management Office
JFP: Joint Frequency Panel
JITC: Joint Interoperability Test Certification
JMTGM: Joint Military Terminology Group Memorandum
JOC: Joint Operations Concepts (Also JOpsC)
JOERAD: JSC Ordnance E3 Risk Assessment Database: A tool used by the Warfighter to make critical decisions. JOERAD gives the Warfighter the ability to compare the maximum allowable environment (MAE) (the environment that an ordnance item can be exposed without creating a safety or operational problem) with the output from the RF emitter systems located on various operational platforms. The process have been automated and will assist in mission planning and impact assessments.
JOCG: Joint Ordnance Commander's Group
JP: Jet Propellant
JRFL: Joint Restricted Frequency List
JROC: Joint Requirements Oversight Council: Assists the Chairman, Joint Chiefs of Staff in identifying and assessing the priority of joint military requirements (including existing systems and equipment) to meet the national military strategy. The Vice Chairman of the Joint Chiefs of Staff (VCJCS) chairs the Council and decides all matters before the Council. The Council directly supports the Defense Acquisition Board (DAB) through the review, validation, and approval of key cost, schedule, and performance parameters at the start of the acquisition process, prior to each milestone review, or as requested by the Under Secretary of Defense for Acquisition, Technology, & Logistics (USD(AT&L)).
JS: Joint Staff: 1.The staff of a commander of a unified or specified command, subordinate unified command, joint task force, or subordinate functional component (when a functional component command will employ forces from more than one Military Department), that includes members from the several Services comprising the force. These members should be assigned in such a manner as to ensure that the commander understands the tactics, techniques, capabilities, needs, and limitations of the component parts of the force. Positions on the staff should be divided so that Service representation and influence generally reflect the Service composition of the force. 2. (capitalized as Joint Staff) The staff under the Chairman of the Joint Chiefs of Staff as provided for in the National Security Act of 1947, as amended by the Goldwater-Nichols Department of Defense Reorganization Act of 1986. The Joint Staff assists the Chairman and, subject to the authority, direction, and control of the Chairman and the other members of the Joint Chiefs of Staff in carrying out their responsibilities.
JSC: Joint Spectrum Center: Joint Organization whose mission is to ensure the DoD's effective use of the electromagnetic spectrum. Now part of the Defense Spectrum Organization (DSO).
JSDR: Joint Spectrum Data Repository: the joint authoritative data source for all spectrum-related data
JSHIP: Joint Shipboard Helicopter Integration Process: Tests and evaluates joint service shipboard and helicopter interoperability.
JSIRMO: Joint Staff Information Resource Management Office
JSWORD: Joint Shipboard Weapons and Ordnance: An effort to assess the risks associated with the use of 2.75" Folding Fin Aerial Rockets (FFARs) in a joint training and contingency environment.
JTF: Joint Task Force
JTRS: Joint Tactical Radio System
JUONS: Joint Urgent Operational Needs Statement
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K: Kilo (e.g., Ktons); Kelvin (Temperature)
Kbps: Kilobits-per-second
kHz: Kilohertz
km (or KM): Kilometers
KPP: Key Performance Parameters
KSA: Key System Attribute
KV: Kilovolt
 
LAN: Local Area Network
LAS: League of Arab States
LCC: Landing Craft; Amphibious Command Ship
LF: Low Frequency: 30-300 KHz
LFD: Limited Fielding Decision
LFT&E: Live Fire Test & Evaluation
LISN: Line Impedance Stabilization
Log: Logarithm
LOGDET: Logistics Detail (Air Force)
Line-of-sight (LOS): Unlike some devices that require unobstructed line of sight to the object being read, RFID devices usually do not require LOS. Most RFID tags can be read through boxes, crates, packaging or dirt.
LRIP: Low-Rate Initial Production
LRU: Line Replaceable Unit
LTE: Long-Term Evolution
 
µ: Micro (e.g., µs microsecond etc)
M&S: Modeling and Simulation
m (M): meters
mA: milliampere; milliamp
MAD: Magnetic Anomaly Detector
MAE: Maximum Allowable Environment: The highest radiated field-strength levels to which ordnance can be exposed without exceeding EED HERO margins
MAF: Mobility Air Force(s) or Marine Amphibious Forces
MAG: Military Assignment Guide
MAIS: Major Automated Information Systems: An AIS acquisition program that is designated by Assistant Secretary of Defense (Command, Control, Communications, and Intelligence) (ASD(C3I)) as a MAIS, or estimated to require program costs in any single year in excess of 32 million in fiscal year(FY)2000 constant dollars, total program costs in excess of 126 million in FY2000 constant dollars, or total life cycle costs in excess of 378 million in FY2000 constant dollars. MAISs do not include highly sensitive classified programs (as determined by the Secretary of Defense), or tactical communication systems. For the purpose of determining whether an AIS is a MAIS, the following shall be aggregated and considered a single AIS: the separate AISs that constitute a multi-element program; the separate AISs that make up an evolutionary or incrementally developed program; or the separate AISs that make up a multi-DoD component ASI program (DoDI 5000.2).
MATDEV: Material Developer
Max: Maximum
Mbps: Megabits Per Second; Million Bits-per-Second
MCEB: Military Communications Electronics Board
MCP: Master Control Program; Maximum Continuous Power; Motor Control Panel
MCS: Mission Critical System
MDAP: Major Defense Acquisition Program: An acquisition program that is not a highly sensitive classified program (as determined by the Secretary of Defense) and that is designated by the Under Secretary of Defense (Acquisition, Technology and Logistics) (USD(AT&L)) as an MDAP, or estimated by the USD(AT&L) to require an eventual total expenditure for research, development, test and evaluation (RDT&E) of more than 365 million in fiscal year(FY)2000 constant dollars or, for procurement, of more than 2.19 billion in FY2000 constant dollars.
MDA: Milestone Decision Authority
MDAP: Milestone Decision Authority Program
MDD: Maintenance Data Documentation; Materiel Development Decision
MF: Medium Frequency: 300 KHz - 3 MHz
MFG (Mfg or mfg): Manufacturer
MH: Medium Helicopter; Multirole Helicopter
MHD: Magneto-Hydrodynamic (Generator)
MHz: Megahertz
MIL: Military
MIL-HDBK: Military Handbook
MIL-STD: Military Standard
MILDEP: Military Department
MILSTAR: Military Strategic/Tactical and Relay Satellite
MIMO: Multi-Input Multi-Output
MIO: Maritime Interception Operation
MMW: Millimeter Wave
MNFC: Maximum No Fire Current
MNFS: Manufacturer Supplied
MNS: Mission Needs Statement: A formatted non-system-specific statement containing operational capability needs and written in broad operational terms. It describes required operational capabilities and constraints to be studied during the Concept Exploration and Definition Phase of the Requirements Generation Process.
MODEM: Modulation - Demodulation
MOE: Measure of Effectiveness
MOGAS: Motor Gas
MOP: Measures of Performance
MPE: Maximum Permissible Exposure
MPG: Multipoint Ground
MPIO: Multipath Input/Output
MRI: Magnetic Resonance Imaging
MRL: Materiel Readiness Level
MS: Milestone
MSC: Military Sealift Command
MUD: Multiuser Detection
MW: Microwave
N: Nuclear
NARTE: National Association of Radio and Telecommunications Engineers
NASA: National Aeronautics and Space Administration
NASCTN: National Advanced Spectrum and Communications Test Network
NATO: North Atlantic Treaty Organization
NATOPS: Naval Aviation Training and Operating Procedures Standardization
NAVAIR: Naval Air Systems Command
NAVSEA: Naval Sea Systems Command
NAWCAD: Naval Air Warfare Center - Aircraft Division
NB: Narrowband
NC2: Nuclear Command and Control
NCSL: National Conference of Standards Laboratory
NDI: Non-Development Items: Any previously developed item of supply used exclusively for government purposes by a Federal Agency, a State or local government, or a foreign government with which the US has mutual defense cooperation agreement; any item described above that requires only minor modifications (or modifications of the type customarily available in the commercial marketplace) in order to meet the requirements of the processing department or agency.
Near-field Communication (RFID): Where the RFID reader and tag are separated by a distance of less than one full wavelength
NEC: National Electric Code
NEMA: National Electrical Manufacturer's Association
Net: Network
NETWARS: Network Warfare Simulation
NFPA: National Fire Protection Act/Association
NGA: Non-Governmental Agency; Next Generation Access
NGO: Non-Governmental Organization
NIB: Non-Interference Basis
NIFC-CA: Naval Integrated Fire Control – Counter Air
NM (nm): Nautical Miles
NMSC: Navy/Marine Corp Center
NOAA: National Oceanic and Atmospheric Administration
Noise: Increasing amplification in a transmitter does not necessarily increase receiver sensitivity. Each amplifier in the receiver adds some noise to the signal. Although noise can be reduced through proper circuit design, it can never be eliminated. The noise generated in a receiver can actually mask a weak signal. An important measure of receiver sensitivity is the weakest signal from the antenna will override noise generated in the receiver.
Nonlinear Effects: Phenomena occurring in a device whose output is neither directly nor inversely proportional to the input.
NPRM: Further Notice of Proposed Rulemaking
NPT: Non-Proliferation Treaty
NR-KPP: Neat Ready Key Performance Parameter
NSA: National Security Agency
NSS: National Security System: Any telecommunications or information system operated by the United States Government, the function, operation, or use of which involves intelligence activities, crypto logic activities related to national security, command and control of military forces, equipment that is an integral part of a weapons system, or is critical to the direct fulfillment of military or intelligence missions. Such a system is not NSS if it is to be used for routine administrative and business applications (including payroll, finance, logistics and personnel management applications).
NSTISSAM: National Security Telecommunications and Information Systems Security Advisory
NSWCDD: Naval Surface Warfare Center - Dahlgren Division
NTC: National Transitional Council
NTH: Note-to-Holder
NTIA: National Telecommunications and Information Administration
Ω: Ohms
OA: Operational Assessment
OASD(C3I): Office of the Assistant Secretary of Defense for Network & Information Integration, OASD (NII).
OBRA: Omnibus Budget Reconcilliation Act
OC: Optical Coverage
OCC BW: Occupied Bandwidth
OCEUS: 4G Cellular System installed on some Navy ships
OCONUS: Outside Continental United States
Octave: The interval between two frequencies having a ratio of 2:1.
OFDM: Orthogonal Frequency Division Multiplexing
Off-Frequency Rejection (OFR): In a receiver, the amount of attenuation of a signal at a frequency other than the tuned frequency as a result of the selectivity characteristic of the receiver and the power-versus-frequency characteristic of the signal.
OMB: Office of Management and Budget
ONS: Operational Needs Statement
On-Tune Rejection (OTR): In a receiver, the amount of attenuation of a signal in a receiver resulting from the mismatch between the emission spectrum of the signal and the Bandpass characteristics of the receiver.
Ops: Operations
OPSDEP: Operations Deputy
ORD: Operational Requirements Document: A formatted statement containing performance and related operational parameters for the proposed concept or system. Prepared by the user or user's representative at each milestone beginning with Milestone I, Concept Demonstration Approval of the Requirements Generation Process.
OSD: Office of the Secretary of Defense
OSM: Office of Spectrum Management
OSMDD: Office of Spectrum Management Data Dictionary
OT: Operation Test
OT&E: Operational Test and Evaluation: The field test, under realistic conditions, of any item (or key component) of weapons, equipment, or munitions for the purposed of determining the effectiveness and suitability of the weapons, equipment, or munitions for use in combat by typical military users; and the evaluation of the results of such tests.
OTP: Office of Telecommunications Policy
Out-of-Band: Signals at frequencies outside of the RF pass and of a receiver.
P-Static (Precipitation-Static): P-static is caused by aircraft in flight coming in contact with uncharged particles such as rain, snow, fog, sleet, hail, volcanic ash, or dust. When the aircraft strikes these neutral particles, the positive element of the particle is reflected away from the aircraft and the negative particles adhere to the aircraft skin. Very quickly, a substantial negative charge develops on the aircraft skin. If the aircraft does not have an ineffective static discharger system, when a sufficient negative voltage level is reached, the aircraft may go into "CORONA." That is, it will discharge the static electricity from the extremities of the aircraft, such as the wing tips, horizontal stabilizer, vertical stabilizer, antenna, propeller tips, etc.
P3I: Planning, Performance, Process and Innovative Solutions
Para: Paragraph
Parametric Amplifier: An inverting parametric device used to amplify a signal without frequency translation from input to output.
Pass Band: In a receiver or a filter, the frequency band between the upper and lower frequencies at which a given fraction of the maximum output is obtained.
Passive RFID Tag: The passive RFID tags do not contain a battery and use the reader for their power. The reader transmits a low-power signal to the tag. The tag microchip is powered by the low power signal received by the tag antenna. The passive tag usually transmits up to distances of 10 feet.
Path Loss: The power attenuation of a signal over the path between a transmitting antenna and a receiving antenna by a causes.
pbw: Percentage Bandwidth
PC: Personal Computer; Patrol Coastal Class (e.g., PC 1)
PCAST: President’s Council of Advisors on Science and Technology
PCB: Printed Circuit Board
PCS: Personal Communication Services
PCU: Power Control Unit
PDF: Program Data File
PDR: Preliminary Design Review
PDUSD: Principle Deputy Under Secretary of Defense
Peak Power: 1) In a modulation carrier system, the power, averaged over a carrier cycle, at the maximum amplitude that can occur with any combination of signals to be transmitted 2) In a pulse radar system, the maximum value of the transmitted pulse.
PEL: Permissible Exposure Limits
PFU: Programmable Function Unit
PGM: Precision Guided Munitions
Phased-Array Antenna: An array antenna whose beam direction or radiation pattern is controlled primarily by the relative phases of the excitation coefficients of the radiating elements.
Phased Modulation (PM): Angle modulation in which the instantaneous phase angle of the modulated wave differs from the phase of the original sine-wave carrier by an amount proportional to the instantaneous value of the modulating wave.
PL: Public Law
PM: Program Manager: The individual designated in accordance with criteria established by the appropriate Component Acquisition Executive to manage an acquisition program, and appropriately certified under the provisions of the Defense Acquisition Workforce Improvement Act. A PM has no other command or staff responsibilities within the Component
PM: Personnel Mounted
PO&A: Plans, Operations and Analysis
POA&M: Plan of Action and Milestones
POC: Point Of Contact
POM: Program Objective Memorandum; Preparation for Overseas Movement
POTUS: President of the United States
PPBE: Planning,Programming, Budget and Execution
PRF: Pulse Repetition Frequency
PSTN: Public Switched Telephone Network
Pub: Publication
PW (also Pwr for power): Power; Pulsewidth
PWG: Permanent Working Group
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QoS: Quality of Service
R&D: Research and Development
RA: Risk Assessment
RADHAZ: Radiation Hazards
R/C: Radio Control
RCS: Radio Conference Subcommittee
RD&A: Research, Development and Acquisition
RDP: Requirements Definition Package
Reader: Also referred to as the interrogator. The reader's function is to read or interrogate the RFID tag using radio waves to read the microchip contents and pass this information (in digital format) to a computer for processing. The RFID reader can be handheld, portal, or convey or mounted.
Read-only Microchip: Unique data is written to the microchip by the manufacturer at the time it is produced. This data cannot be changed once it is written to the chip.
Read-write Microchip: Allows the microchip data to be overwritten when the chip is close to a reader. The read-write chip is more expensive then the read-only chip.
Ref: Reference
RES: Resolution; Resistance; Receiver End System
RF: Radio Frequency: Is defined as extending from 3 kHz to 300 GHz.
RFD: Request for Documentation
RFID: Radio Frequency Identification: RFID systems use RF energy to automatically recognize people, pets, or objects such as car tags and passports. Most RFIDs operate by storing data on a microchip which is normally attached to an antenna and referred to as an RFID transponder or RFID tag. The antenna allows the microchip to transmit the identification information to an RFID "reader" which is also equipped with an antenna. The reader converts the reflected RF waves from the RFID tag into digital format.
RFP: Request for Proposal
RPV: Remotely Piloted Vehicle
RSS: Radio Sub System; Regional Surveillance System; Remote Switch Subsystem
RTCA: Radio Technical Commission for Aeronautics
S/I: Signal-to-Interference (Ratio)
S-D: Spectrum Dependent
S4: Stockpile-to-Safe Separation Sequence
SA: Stand Alone; Situational Awareness
SADL: Situation Awareness Data Link
SAE: Society of Automotive Engineers
SAR: Specific Absorption Rate
SAT: System Acceptance Test
SATCOM: Satellite Communication
SBIR: Small Business Innovation Research; Space-Based Infrared
SC: Spectrum Certification: DoD system acquisition process.
SCS: Spectrum Certification System (Database)
SDG:Spectrum Management Allied Data Exchange Format Drafting Group
SDL: Satellite Data Link
SDLT: Serial Data Link Translator
SDR: Software Defined Radios
SEAL: Sea, Air, Land (US Navy military special forces team)
SFAF: Standard Frequency Action Format
SEC: Section
SECDEF: Secretary of Defense
Semi-passive Tags: The RFID tag is uses a battery to run the RFID chip only - the battery is not used for transmitting information back to the reader.
SEP: Systems Engineering Plan
SERE: Survival, Evasion, Resistance and Escape
SFAF: Standard Frequency Action Format
SGLS: Space Ground Link Sub-system
SHF: Super High Frequency: 3-30 GHz
Shields: Confines radiated energy to a specific location, or prevents radiated energy from entering a specific location. Shields can be a solid metal enclosure, metal screens, braids, and honeycomb shields, and conductive glass.
SIPRNET: Secure Internet Protocol Router Network
SIT: System Integration Test
SLAM-ER: Standoff Land-Attack Missile Expanded Response
SLEP: Service Life Extension Program
SMA: Standardization Management Activity
Smart Label: A label with an RFID microchip and antenna attached.
SM: Spectrum Management (Manager): Planning, coordinating, and managing joint use of the electromagnetic spectrum through operational, engineering, and administrative procedures. The objective of spectrum management is to enable electronic systems to perform their functions in the intended environment without causing or suffering unacceptable interference. See also electromagnetic spectrum.
SMADEF: Spectrum Management Allied Data Exchange Format
SMTI: Spectrum Management Transition Initiative
SMO: Service Management Office
SOF: Special Operations Forces
SOPWG: Spectrum Operations Permanent Working Group
SoS: System-of-Systems
SOW: Statement of Work
Spec(s): Specifications
SPAWAR: Space and Naval Warfare Systems Command
SPS: Spectrum Planning Subcommittee
SPU: Subsystem Power Unit; Special Purpose Unit
SQ: Signal Quality
SRR: System Requirement Review
SS: Spectrum Supportability: The determination as to whether the electromagnetic spectrum necessary to support the operation of spectrum-dependent equipment or system during its expected life cycle is, or will be, available (that is, from system development, through developmental and operation testing, to actual operation in the electromagnetic environment). The assessment of an equipment or system as having "spectrum supportability" is based upon, at a minimum, receipt of equipment certification, reasonable assurance of the availability of sufficient frequencies for operation, and consideration of the electromagnetic compatibility (EMC).
SSD: Safe Separation Distance: Distance ordnance is safe from a transmitter; Spectrum Supportability Determination
SSRA: Spectrum Supportability Risk Assessment: SSRAs are required to determine and document if adequate spectrum is available to support system operation in DoD, Allied, and Coalition operations. Spectrum supportability (SS) and E3 risks and the steps that need to be taken to mitigate the risks are to be identified in the SSRA and provided to the Military Department (MILDEP) Spectrum Management Office (SMO) who will review the SSRA and forward their recommendations to the Service Chief Information Officer (CIO) for approval. A statement on the SS of an acquisition is then forwarded to the milestone decision authority (MDA). PM/MATDEVs should consult, as early as possible, with their respective MILDEP SMO regarding the application and tailoring of the SSRA, and to ensure that all user requirements are met.
SSRF: Standard Spectrum Resource Format
SSG: Strategic Studies Group
SSS: Space Systems Subcommittee
STAR: System Threat Assessment Report
STAT: Static
STRATCOM: Strategic Communications; U.S. Strategic Command
STTI: Spectrum Technology Test-Bed Initiative
STTR: Small business Technology Transfer
SUAS: Small Unmanned Aerial System
SUT: System Under Test
SXXIO: Spectrum XXI (21) Online
 
T&E: Test and Evaluation
TAADS: The Army Authorization Documents System
TACDB: Tactical Database
Tag: Part of an RFID system that contains a microchip and antenna assembly. Also referred to as a smart label.
TBM: Tactical Ballistic Missile
TDL: Tactical Data Link
TEMP: Test & Evaluation Master Plan: Documents the overall structure and objectives of the Test & Evaluation (T&E) program. It provides a framework within which to generate detailed T&E plans and it documents schedule and resource implications associated with the T&E program. The TEMP identifies the necessary Developmental Test & Evaluation (DT&E), Operational Test & Evaluation (OT&E), and Live Fire Test & Evaluation (LFT&E) activities. It relates program schedule, test management strategy & structure, and required resources to: critical operational issues; critical technical parameters; objectives & thresholds documented in the Operational Requirements Document (ORD), Capability Development Document (CDD) and Capability Production Document (CPD); evaluation criteria; and milestone decision points.
TEMPEST: Transient Electromagnetic Pulse Emanations
TFSMS: Total Force Structure Management System
TOA: Table of Allocation
TOC: Tactical Operation Center
Transponder: A combination transmitter and receiver in one unit. RFIDs are commonly referred to as a transponder since they can both transmit and receive radio waves.
Tropospheric Scatter: Propagation of radio waves caused by irregularities in the refractive index of air. It is predominant in the lower atmosphere; little or no scattering scattering of importance occurs above the troposphere. This type of communication is very useful but also is capable of causing harmfully interference. It is used for long-distance point-to-point services, especially where high information capacity and high reliability are required.
TRR: Tactical Radio Relay; Test Readiness Review
TSC: Technical Subcommittee
TTP: Tactics, training and procedures
TV: Television
TY: Total Year
 
UAS: Unmanned Aerial Systems
UAV: Unmanned Aerial Vehicle
UHF: Ultra-high Frequency: Operates in the 860-960 MHz frequency range. The read range for a UHF RFID is typically up to 20 feet. However, the cons of UHF are absorption by liquids and unpredictability near metal containers or surfaces. Because congestion in this frequency range, many countries have or will experience interference problems.
US&P: United States and Possessions
US: United State
USA: United States of America; United States Army
USAF: United States Air Force
USAFRICOM: United States African Command
USC: United States Code
USCENTCOM: United States Central Command
USD: Under Secretaries of Defense
USEUCOM: United States European Command
USG: United States Government
USMC: United States Marine Corp
USMCEB: United States Military Communications-Electronics Board
USNORTHCOM: United States Northern Command
USPACOM: United States Pacific Command
USS: United States Ship
USSOUTHCOM: United States Southern Command
UV: Ultraviolet
 
V: Volt(s)
VCJCS: Vice Chairman of the Joint Chiefs of Staff
VHF: Very High Frequency: 30-300 MHz
VLF: Very Low Frequency: 3-30 KHz
VM: Vehicle Mounted
VMF: Marine Fighter Squadron; Variable Message Format
 
W: Watts
WDU: Weapons Detonation Unit
WNAN: Wireless Network After Next
WiFi: Wireless Fidelity
WiMAX: Worldwide Interoperability Microwave Access
WIN-T: Warfighter Information Network - Tactical
WIPT: Working Integrated Product Team
WRC: World Radiocommunications Conference
Write Once Read Many Times (WORM) Microchip: A microchip that can be written to only once (then becomes Read Only), but can be read by an RFID reader many times.
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XG: Next Generation
XML: Extensible Mark-up Language
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