Electronic Warfare and Radar Systems Engineering Handbook - Abbreviations & Acronyms

ABBREVIATIONS and ACRONYMS

a	Acceleration or atto (10-18 multiplier)	AFIPS	Automated Financial Information
A	Ampere, Area, Altitude, Angstrom (Å),		Processing System
	Antenna Aperture, or Aerial (U.K.)	AFOTEC	Air Force Operational T&E Center
A-799	No evidence of failure report	A/G	Air-to-Ground
A/A, A-A, AA	Air-to-Air or Anti-Aircraft	AGB	Autonomous Guided Bomb
AA-()	Air-to-Air missile number ()	AGC	Automatic Gain Control
AAA	Anti-Aircraft Artillery	AGI	Auxiliary General Intelligence AAAA
	Army Aviation Association of America		(Intelligence-gathering Ship) AAED
	Advanced Airborne Expendable Decoy	AGL	Above Ground Level
AAM	Air-to-Air Missile	AGM	Air-to-Ground Missile
AARGM	Advanced Anti-Radiation Guided	AGS	Angle Gate Stealer
	Missile (concept)	AHWS	Advanced Helicopter Weapons System AAW
	Anti-Air Warfare	AI	Artificial Intelligence, Air Intercept, or A-BIT
	Automatic Built-in-Test		Airborne Interceptor
ABM	Air Breathing Missile or	AIAA	American Institute of Aeronautics and
	Anti-ballistic Missile		Astronautics
A/C	Aircraft (also acft.)	AIC	Air Intercept Control
AC	Alternating Current	AIM	Air Intercept Missile
ACA	Associate Contractor Agreement or	AIRLANT	Commander, U.S. Naval Air Forces,
	Airspace Coordination Area		Atlantic Fleet
ACAT	Acquisition Category	AIRPAC	Commander, U.S. Naval Air Forces,
ACCB	Aircraft Configuration Control Board		Pacific Fleet
Acft	Aircraft (also A/C)	AJ	Anti-jamming or Anti-Jam
ACLS	Aircraft Carrier Landing System	A-Kit	Aircraft wiring kit for a system
ACM	Advanced Cruise Missile or Air		(includes cabling, racks, etc. excluding
	Combat Maneuvering		WRAs)
ACQ	Acquisition	AM	Amplitude Modulation
ACS	Antenna Coupler Set	AMD	Aircraft Maintenance Department
ACTD	Advanced Concept Technology	AMES	Advanced Multiple Environment
	Demonstration		Simulator
A/D	Analog to Digital	AMLV	Advanced Memory Loader/Verifier
Ada	Not an acronym. Ada is the DoD	Amp	Amplifier
	standard programming language.	AMRAAM	Advanced, Medium-Range, Air-to-Air
ADM	Advanced Development Model		Missile
ADP	Automatic Data Processing or	ANSI	American National Standards Institute
	Advanced Development Program	ANT	Antenna
ADVCAP	Advanced Capability	A0	Operational Availability
AEC	Aviation Electronic Combat (Army)	AO	Acousto-Optical
AEGIS	Automatic Electronic Guided Intercept	AOA	Angle of Arrival, Angle of Attack, or
	System		Analysis of Alternatives (similar to
AEL	Accessible Emission Limit		COEA)
AEW	Airborne Early Warning	AOC	Association of Old Crows (Professional
AF	Antenna Factor, Air Force, or Audio		EW Society) or Award of Contract
	Frequency	AOT	Angle Only Track, Angle Off Tail, or
AFB	Air Force Base or Airframe Bulletin		Acquisition-on-Target
AFC	Automatic Frequency Control or	APC	Amphenol Precision Connector or
	Airframe Change		Armored Personnel Carrier
APN	Aircraft Procurement, Navy	Avg	Average
APO	Armed Forces (or Army or Air) Post	AWACS	Airborne Warning and Control System
	Office, Acquisition Program Office	AZ	Azimuth (also Az)
APU	Auxiliary Power Unit
AR	Anti-reflection or Aspect Ratio
ARM	Anti-radiation Missile	B	Bandwidth (also BW) or Magnetic
ARO	After Receipt of Order		inductance
A/S, A-S, AS	Air-to-Surface	BAFO	Best and Final Offer
ASCM	Anti-ship Cruise Missile	BATBULL	Bat Bulletin - former VX-9 tactics
ASE	Aircraft Survivability (or Survival)		newsletter now called "On Target" Equipment,
	Allowable Steering Error,	BAU	Bus Adapter Unit
	or Automatic Support Equipment	BC	Bus Controller
ASIC	Application Specific Integrated Circuit	BDA	Battle Damage Assessment
ASK	Amplitude Shift Keying	BDI	Battle Damage Indication
ASM	Air-to-Surface Missile	BFO	Beat Frequency Oscillator
ASO	Aviation Supply Office	BI	Background Investigation
A-Spec	System Specification	BIFF	Battlefield Identification, Friend, or Foe
ASPJ	Airborne Self-Protection Jammer	BIT	Built-in-Test, Binary Digit or
ASPO	Avionics Support (also Systems)		Battlefield Information Technology
	Project Office (also Officer)	BITE	Built-in-Test Equipment
ASR	Advanced Special Receiver or	BIU	Bus Interface Unit
	Airport/Airborne Surveillance Radar	B-Kit	Avionics "Black Box" WRAs
ASRAAM	Advanced Short Range Air-to-Air	B/N	Bombardier/Navigator
	Missile	BNC	Bayonet Navy Connector
ASTE	Advanced Strategic and Tactical	BOA	Basic Ordering Agreement
	Expendables	BOL	Swedish chaff dispenser in a launcher
ASW	Anti-submarine Warfare	BPF	Band Pass Filter
ATA	Advanced Tactical Aircraft	BPS	Bits Per Second
ATARS	Advanced Tactical Air Reconnaissance	BUMED	Bureau of Medicine (Navy)
	System	BUNO	Bureau Number (aircraft)
ATC	Air Traffic Control	BUR	Bottom Up Review
ATD	Advanced Technology Demonstration	BVR	Beyond Visual Range
ATE	Automatic Test Equipment	BW	Beamwidth (referring to an antenna) or
ATEDS	Advanced Technology Expendables		sometimes Bandwidth
	and Dispenser Systems	BWA	Backward Wave Amplifier
ATF	Advanced Tactical Fighter	BWO	Backward Wave Oscillator
ATIMS	Airborne Turret Infrared Measurement
	System or Airborne Tactical
	Information Management System
ATIRCM	Advanced Threat Infrared	c	Speed of Light = 3x108 meters/sec =
	Countermeasures		1.8x1012 furlongs per fortnight or 1.8
ATP	Acceptance Test Procedure		terafurlongs per fortnight, or centi
ATR	Autonomous Target Recognition,		(10-2) multiplier
	Airborne Transportable Rack	C	Electron Charge, Coulomb,
ATRJ	Advanced Threat Radar Jammer		Capacitance, Celsius, Centigrade,
AUTODIN	Automatic Digital Network		Confidential, Roman numeral for 100,
AUTOVON	Automatic Voice Network (now DSN)		or a programming language (also C+
AUX	Auxiliary		and C++)
avdp.	Avoirdupois (system of measures)	C2	Command and Control
C3	Command, Control, and	CIA	Central Intelligence Agency
	Communications	CIC	Combat Information Center (now called
C3CM	C3-Countermeasures		CDC)
C3I	Command, Control, Communications,	CID	Combat Identification or Charge and Intelligence
			Injection Device
CAD	Computer-Aided Design	CILOP	Conversion in Lieu of Procurement
CAE	Computer-Aided Engineering	CINC	Commander in Chief
CAG	Carrier Air Group	CIS	Commonwealth of Independent States
CAGE	Commercial and Government Entry		(11 of 15 former Soviet Union
CAIV	Cost as an Independent Variable		territories except Estonia, Georgia,
CAL	Calibration		Latvia, and Lithuania)
CAM	Computer-Aided Manufacturing or	CIWS	Close-In Weapon System
	Constant Addressable Memory	CJ	Coherent Jamming
CAO	Competency Aligned Organization or	CLC	Command Launch Computer
	Contract Administrative Officer	cm	Centimeter
CAP	Combat Air Patrol	CM	Countermeasures or Configuration
CAS	Close Air Support or Calibrated		Management
	Airspeed	CMC	Command Mission Computer or
CASS	Consolidated Automated Support		Commandant Marine Corps
	System	CMDS	Countermeasure Dispensing System
CAT	Catapult or Cockpit Automation	CMOS	Complementary Metal-Oxide
	Technology		Semiconductor
CB	Citizens Band (also see Seabee)	CMP	Configuration Management Plan
CBD	Commerce Business Daily	CMWS	Common Missile Warning System
CBIT	Continuous Built-in-Test	CNAL	Commander, Naval Air Forces Atlantic
CBO	Congressional Budget Office		(COMNAVAIRLANT)
CCA	Circuit Card Assembly	CNAP	Commander, Naval Air Forces Pacific
CCB	Configuration Control Board		(COMNAVAIRPAC)
CCD	Charge Coupled Device	CNI	Communications, Navigation, and
CCM	Counter-Countermeasures		Identification
CCN	Contract Change Number or	CO	Commanding Officer, Contracting
	Configuration Change Notice		Officer, Change Order, or Carbon
CCU	Cockpit Control Unit		Monoxide
cd	Candela (SI unit of luminous intensity)	COB	Close of Business
CD	Compact Disk or Control and Display	COEA	Cost and Operational Effectiveness
CDC	Combat Direction Center		Analysis
CDR	Critical Design Review	COG	Center of Gravity or Cognizant
CDRL	Contract Data Requirements List	COMM	Communications
CE	Conducted Emission	COMSEC	Communications Security
CECOM	Communications and Electronics	CONSCAN	Conical Scanning Radar
	Command (Army)	CONUS	Continental United States
CEP	Circular Error Probability	CO-OP	Cooperative (countermeasures)
CFA	Cognizant Field Activity	Cos	Cosine
CFAR	Constant False Alarm Rate	COSRO	Conical-Scan on Receive Only
CFE	Contractor Furnished Equipment	COTS	Commercial Off-The-Shelf
CG	Center of Gravity, Commanding		(hardware/software)
	General, Command Guidance, or	CP	Circularly Polarized (antenna), Central
Cruiser	Processor, or Command Post
CI	Configuration Item	CPS	Computer or Control Power Supply
CPU	Central Processing Unit	DBOF	Defense Business Operations Fund
CRC	Originally Chemical Rubber Company,	dBsm	Decibel value of radar cross section
	now published reference books by CRC		referenced to a square meter
	Press	dBW	Decibel referenced to the power of one
CRFM	Coherent RF Memory		watt
CRISD	Computer Resources Integrated	DC	Direct Current, Discrete Circuit, or
	Support Document	District of Columbia
CRLCMP	Computer Resources Life Cycle	DCE	Data Communication Equipment
	Management Plan	DDI	Digital Display Indicator
CRO	Countermeasures Response	DDS	Direct Digital Synthesizers
	Optimization	DECM	Deceptive Electronic Countermeasures
CRT	Cathode Ray Tube or Combat Rated		(also Defensive ECM) Thrust (afterburner)
		deg	Degree
Crypto	Cryptographic	DEMVAL	Demonstration Validation (also
CS	Conducted Susceptibility		DEM/VAL)
CSC	Commodity Software Change	DET	Detachment
CSCI	Computer Software Configuration Item	DF	Direction Finding
C-Spec	Product Specification	DFT	Discrete Fourier Transform
CSS	Contractor Support Services	DI	Data Item
CV	Aircraft Carrier	DIA	Defense Intelligence Agency or
CVA	Older designation for Attack Carrier		Diameter
CVN	Nuclear Powered Aircraft Carrier	DID	Data Item Description
CVR	Crystal Video Receiver	DIRCM	Directed Infrared Countermeasures
CW	Continuous Wave or Chemical Warfare	DJ	Deceptive Jamming
CWBS	Contract Work Breakdown Structure	D-Level	Depot Level Maintenance
CWI	Continuous Wave Illuminator	DM	Data Management (also manager)
CY	Calendar Year	DMA	Direct Memory Address or Defense
			Mapping Agency
		DME	Distance Measuring Equipment
d	Distance, Diameter, or deci (10-1	DNA	Defense Nuclear Agency, Does Not
	multiplier)		Apply, or Deoxyribonucleic Acid
D	Distance, Diameter, Electron	DOA	Direction of Arrival
	displacement, Detectivity, Doppler,	DOD or DoD	Department of Defense
	Density, or Roman numeral for 500	DoDISS	DoD Index of Specifications and
da	deca (100 multiplier)		Standards
D/A	Digital-to-Analog	DOM	Depth of Modulation
DAB	Defense Acquisition Board	DON	Department of the Navy
DAC	Digital to Analog Converter or Dept of	DOS	Disk Operating System
	Army Civilian	DPRO	Defense Plant Representative Office
DAR	Defense Acquisition Regulation	DRB	Defense Review Board
DARPA	Defense Advanced Research Projects	DRFM	Digital RF Memory
Agency	DSARC	Defense Systems Acquisition (and)
DB	Database		Review Council
dB	Decibel	DSN	Defense Switching Network
dBc	dB referenced to the Carrier Signal	DSO	Dielectrically Stabilized Oscillator
dBi	Decibel antenna gain referenced to an	DSP	Digital Signal Processor
	isotropic antenna	D-Spec	Process Specification
dBm	Decibel referenced to the power of one	DT (&E)	Development or Developmental Test
	milliwatt		(and Evaluation)
DTC	Design to Cost	EMCAB	EMC Advisory Board
DTE	Data Terminal Equipment	EMCON	Emission Control
DTO	Digitally Tuned Oscillator or Defense	EMD	Engineering and Manufacturing
	Technology Objectives		Development
		EME	Electromagnetic Environment
e	Electron charge or base of natural	EMI	Electromagnetic Interference
	logarithms (2.71828...)	EMP	Electromagnetic Pulse
E	Electric Field Intensity or Strength,	EMR	Electromagnetic Radiation
	Energy, East, or Exa (1018 multiplier)	EMS	Electromagnetic Susceptibility
E3	Electromagnetic Environmental Effects	EMV	Electromagnetic Vulnerability
EA	Electronic Attack	EO	Electro-Optic, Electro-Optical, or
	(similar to older term of ECM)		Engineering Order
EC	Electronic Combat	EOB	Electronic Order of Battle or Expense
ECAC	Electromagnetic Compatibility		Operating Budget
	Analysis Center (DOD), now Joint	EOCM	Electro-Optic Countermeasures
	Spectrum Center	EOF	Electro-Optical Frequency
ECCM	Electronic Counter-Countermeasures		(300 to 3 x 107 GHz)
	(similar to newer term of EP)	EP	Electronic Protection (similar to older
ECL	Emitter Coupled Logic		terms of DECM or ECCM)
ECM	Electronic Countermeasures	EPA	Environmental Protection Agency
	(similar to newer term of EA)	EPROM	Electrically Programmable Read-only
ECN	Engineering Change Notice		Memory
ECO	Engineering Change Order	ERAM	Electronic Counter-Countermeasures
ECP	Engineering Change Proposal or Egress		(also Protection) Requirements and
	Control Point		Assessment Manual
ECR	Electronic Combat Range (China Lake)	ERP	Effective Radiated Power
	or Electronic Combat &	ES	Electronic Surveillance (similar to older
	Reconnaissance		term of ESM)
ECS	Environmental Control System	ESD	Electrostatic Discharge
ECSEL	Electronic Combat Simulation and	ESM	Electronic Support Measures (similar to
	Evaluation Laboratory (NAWCWPNS)		newer term of ES)
ECU	Electronic Control Unit	ESSM	Evolved Sea Sparrow Missile
EDM	Engineering Development Model	ET	Electronics Technician
EED	Electro-Explosive Device	ETI	Elapsed Time Indicator
EEPROM	Electrically Erasable/Programmable	ETR	Estimated Time to Repair
	Read-only Memory	EW	Electronic Warfare or Early Warning
EHF	Extremely High Frequency	EWAT	Electronic Warfare Advanced
	(30 to 300 GHz)		Technology
EIA	Electronic Industries Associates	EWIR	Electronic Warfare Integrated
EID	Emitter Identification Data		Reprogramming (USAF database)
EIRP	Effective Isotropic Radiated power	EWMP	Electronic Warfare Master Plan
EL	Elevation (also El)	EWO	Electronic Warfare Officer
ELF	Extremely Low Frequency	EWOPFAC	Electronic Warfare Operational
	(3 Hz to 3 kHz)		Reprogramming Facility
ELINT	Electronics Intelligence	EWRL	Electronic Warfare Reprogrammable
ELNOT	Emitter Library Notation		Library (USN)
EM	Electromagnetic	EWSI	EW Systems Integration
E-Mail	Electronic Mail	EWSSA	EW Software Support Activity
EMC	Electromagnetic Compatibility	EXP	Expendable Countermeasure
f	femto (10-15 multiplier), Frequency	FSED	Full Scale Engineering Development
	(also F), or lens f number	FSK	Frequency Shift Keying
F	Frequency (also f), Force, Farad,	FSU	Former Soviet Union
	Faraday Constant, Female, Fahrenheit,	ft	Feet or Foot
	Noise Figure, Noise Factor or	FTC	Fast Time Constant
	"Friendly" on RWR display	FTD	Foreign Technology Division (USAF)
F/A	Fighter/Attack	FWD	Forward
FAA	Federal Aviation Administration	FY	Fiscal Year
FAC	Forward Air Controller
FAR	Federal Acquisition Regulations or
	False Alarm Rate	g	Gravity (also G)
FAX	Facsimile	G	Universal Gravitational Constant (also
fc	Footcandle (unit of illuminance)		K), Giga (109 multiplier), Conductance,
FCA	Functional Configuration Audit		or Gain
FCR	Fire Control Radar	G&A	General and Administrative (expense)
FDR	Frequency Domain Reflectometry	GaAs	Gallium Arsenide
FEBA	Forward Edge of the Battle Area	GACIAC	Guidance and Control Information
FET	Field-Effect Transistor		Analysis Center (DoD)
FEWSG	Fleet Electronic Warfare Support	gal	Gallon
Group	GAO	General Accounting Office
FFT	Fast Fourier Transform	GBU	Guided Bomb Unit
FIFO	First In / First Out	GCA	Ground Controlled Approach
FIPR	Federal Information Processing	GCI	Ground Control Intercept
	Resources	GENSER	General Service
fl	fluid	GEN-X	Generic Expendable
FLAK	AAA Shrapnel, from the German	GFE	Government Furnished Equipment
	"Flieger Abwher Kanone" (AAA gun	GHz	GigaHertz
	that fires fast and furiously)	GI	Government Issue
FLIR	Forward Looking Infrared	GIDEP	Government Industry Data Exchange
FLPS	Flightline Payload Simulator	Program
FLT	Flight	GIGO	Garbage In / Garbage Out
FM	Frequency Modulation or Failure Mode	GOCO	Government Owned Contract Operated
FME	Foreign Material Exploitation	GP	General Purpose
FMEA	Failure Mode and Effects Analysis	GPI	Ground Plane Interference
FMS	Foreign Military Sale(s)	GPIB	General Purpose Interface Bus
FOC	Full Operational Capability	GPS	Global Positioning System
FOD	Foreign Object Damage	GSE	Ground Support Equipment
FORCECAP	Force Combat Air Patrol
FOT&E	Follow-On Test and Evaluation
FOTD	Fiber Optic Towed Device
FOUO	For Official Use Only	h	hours, hecto (102 multiplier), Plank's
FOV	Field of View		constant, or height (also H)
FPA	Focal Plane Array	H	Height (also h), Henry (Inductance), or
fps	feet per second		Irradiance
FRACAS	Failure, Reporting, Analysis, and	HARM	High-speed Anti-Radiation Missile
	Corrective Actions System	HAWK	Homing All the Way Killer
FRB	Failure Review Board	HDBK	Handbook
FRD	Functional Requirements Document	HDF	High Duty Factor
FSD	Full Scale Development	HE	High Explosive
HEF	High Energy Frequency	IDECM	Integrated Defensive Electronic
	(3x107 to 3x1014 GHz)		Countermeasures
HEL	High Energy Laser	IEEE	Institute of Electrical and Electronic
HELO	Helicopter		Engineers
HERF	Hazards of Electromagnetic Radiation	IF	Intermediate Frequency
	to Fuel	IFF	Identification Friend-or-Foe
HERO	Hazards of Electromagnetic Radiation	IFM	Instantaneous Frequency Measurement
	to Ordnance	IFR	Instrument Flight Rules
HERP	Hazards of Electromagnetic Radiation	IG	Inspector General
	to Personnel	IIR	Imaging Infrared
HF	High Frequency (3 - 30 MHz)	I-Level	Intermediate Level of Repair (also "I"
HIL	Hardware-in-the-Loop		Level)
HOJ	Home-On-Jam	ILS	Integrated Logistic Support, Instrument
HOL	Higher Order Language		Landing System, or Inertial Locator
HP-IB	Hewlett-Packard Interface Bus		System
HP-IL	Hewlett-Packard Interface Loop	ILSMT	Integrated Logistic Support
HPM	High Powered Microwave		Management Team
HPRF	High Pulse Repetition Frequency	IM	Intermodulation or Item Manager
hr	hour	IMA	Intermediate Maintenance Activity
HSDB	High Speed Data Bus	in	Inch
HUD	Heads-Up Display	INEWS	Integrated Electronic Warfare System
HV	High Voltage	INS	Inertial Navigation System
H/W	Hardware	INT	Intensity
HWIL	Hardware-in-the-loop	I/O	Input/Output
Hz	Hertz (Cycles per second)	IOC	Initial Operational (also Operating)
			Capability
		IOT&E	Initial Operational Test and Evaluation
		IPO	International Projects (Program) Office
i	current (also I)	IPR	In-Progress/Process Review
I	Current (also i), Intensity, Irradiance,	IPT	Integrated Product (also Program)
	Intermediate, or Roman Numeral for		Team
	One	IR	Infrared
IADS	Integrated Air Defense System	IR&D	Independent Research and
I&Q	In-Phase and Quadrature		Development
IAS	Indicated Airspeed	IRCM	Infrared Countermeasures
IAW	In Accordance With	IRDS	Infrared Detecting System
IBIT	Initiated Built-in-Test	IREXP	IR Expendables
IBU	Interference Blanker Unit	IRIG-B	Inter-range Instrumentation Group B
IC	Integrated Circuit	IRLS	Infrared Line Scanner
ICD	Interface Control Document	IRS	Interface Requirements Specification,
ICMD	Improved Countermeasure Dispenser		IR Suppression or Internal Revenue
ICNIA	Integrated Communication, Navigation,		Service
	Identification Avionics	IRST	Infrared Search and Track
ICS	Inverse Conical Scan or	ISAR	Inverse Synthetic Aperture Radar
	Intercommunications System (aircraft)	ISO	Derived from the Greek "isos" meaning
ICW	In Compliance With		"equal", the official title is International
ID	Identification		Organization for Standardization
IDA	Institute For Defense Analysis	ISP	Integrated Support Plan
IDAP	Integrated Defensive Avionics Program	ISR	Interference to Signal Ratio (also I/S)
ITU	International Telecommunications	k	kilo (103 multiplier) or Boltzmann
	Union		Constant
IV&V	Independent Validation and	K	Kelvin, Cathode, Universal
	Verification		gravitational constant (also G), or
IW	Information Warfare		Luminous efficacy
		KCAS	Knots Calibrated Airspeed
J	Jamming, Radiance, Current Density,	kg	kilogram
	or Joules	kHz	KiloHertz
JAAS	Joint Architecture for Aircraft	KIA	Killed in Action
	Survivability	KIAS	Knots Indicated Air Speed
JAFF	Jammer (illuminating) Chaff	km	Kilometer
JAG	Judge Advocate General	KSLOC	Thousand Source Lines of Code
JAMS	Jamming Analysis Measurement		(software)
	System	kt	Knot (nautical miles per hour)
JASSM	Joint Air-to-Surface Standoff Missile	kW	Kilowatt
JAST	Joint Advanced Strike Technology
JATO	Jet Assisted Takeoff or Jammer
	Technique Optimization	l	length (also L) or liter
JC2WC	Joint Command and Control Warfare	L	Length (also l), Loss, inductance,
	Center		Luminance, or Roman Numeral for fifty
JCS	Joint Chiefs of Staff or Joint Spectrum	LADAR	Laser Detection and Ranging (i.e., laser
	Center (formerly ECAC)		radar)
JDAM	Joint Direct Attack Munition	LAN	Local Area Network
JED	Journal of Electronic Defense	LANTIRN	Low Altitude Navigation & Targeting
	(Published by the Association of Old		Infrared for Night
	Crows)	LASER	Light Amplification by Stimulated
JEM	Jet Engine Modulation		Emission of Radiation
JETS	Joint Emitter Targeting System	LAT	Latitude (0-90E N or S from equator)
JEWC	Joint EW Conference or Joint EW	lbs	pounds
	Center (now JC2WC)	LCC	Life Cycle Cost(s)
JMR	Jammer	LCD	Liquid Crystal Display or Lowest
JOVIAL	Julius' Own Version of International		Common Denominator
	Algorithmic Language (Air Force	LCP	Left-hand Circular Polarization
	computer programming language)	LDF	Low Duty Factor
JPATS	Joint Primary Aircraft Training System	LDS	Laser Detecting Set
J/S	Jamming to Signal Ratio	LED	Light-Emitting Diode
JSF	Joint Strike Fighter	LEX	Leading Edge Extension
JSGCC	Joint Services Guidance and Control	LGB	Laser Guided Bomb
	Committee	LF	Low Frequency (30 - 300 kHz)
JSIR	Joint Spectrum Interference Resolution	LIC	Low Intensity Combat or Laser
	(signal interference portion of MIJI)		Intercept Capability
JSOW	Joint Stand-Off Weapon (AGM-154A)	LISP	List Processing (A programming
JSTARS	Joint Surveillance Target Attack Radar		language used in artificial intelligence)
	System	LLL	Low Light Level (as in LLL TV)
JTCG/AS	Joint Technical Coordinating Group for	lm	lumen (SI unit of luminous flux)
	Aircraft Survivability	ln	Natural Logarithm
JTIDS	Joint Tactical Information Distribution	LO	Local Oscillator or Low Observable
	System	LOA	Letter of Agreement (or Acceptance)
JV or J/V	Joint Venture	LOB	Line of Bearing (see also AOA)
LOG	Logarithm to the base 10 (also log) or	MAX	Maximum or Maximum aircraft power
	Logistician		(afterburner)
LONG	Longitude (0-180E E or W from	MBFN	Multiple Beam Forming Network
	Greenwich, U.K.)	MC	Mission Computer
LOR	Level of Repair	MCP	Micro-Channel Plate
LORA	Level of Repair Analysis	MDF	Mission Data File
LORAN	Long Range Navigation	MDI	Multiple Display Indicator or Miss
LORO	Lobe on Receive Only		Distance Indicator
LOS	Line-of-Sight	MDG	Mission Data Generator
LPAR	Large Phased-Array Radar	MDS	Minimum Discernible Signal or
LPD	Low Probability of Detection		Minimum Detectable Signal
LPI or LPOI	Low Probability of Intercept	MDU	Multipurpose Display Unit
LPRF	Low Pulse Repetition Frequency	MF	Medium Frequency
LR	Lethal Range		(300 kHz to 3 MHz)
LRA	Line Replaceable Assembly	MFD	Multifunction (video) Display
LRF	Laser Rangefinder	MG	Missile Guidance
LRIP	Low Rate Initial Production	MHz	MegaHertz (106 Hz)
LRU	Line Replaceable Unit	MIA	Missing in Action
LSA	Logistic Support Analysis	MIC	Microwave Integrated Circuit or
LSAR	Logistic Support Analysis Record		Management Information Center
LSB	Least Significant Bit	MICRON	10-6 meter
LSI	Large Scale Integration	MiG	Mikoyan-Gurevich (Soviet aircraft
LSO	Landing Signal Officer		manufacturer)
LSSO	Laser System Safety Officer	MIGCAP	MiG Combat Air Patrol
LTBB	Look Through Blanking Bus	MIJI	Meaconing, Intrusion, Jamming, &
LWIR	Long Wave Infrared		Interference (also see JSIR)
LWR	Laser Warning Receiver	mil	One-thousandth of an inch
lx	Lux (SI unit of illuminance)	MIL	Military power (100%, no afterburner)
LZ	Landing Zone		or Military
		MILCON	Military Construction
		MILSPEC	Military Specification
		MILSTRIP	Military Standard Requisitioning and
m	milli (10-3 multiplier), meter, or		Issue Procedure(s)
	electron mass	MIMIC	Microwave Monolithic Integrated
M	Mega (106 multiplier), Male, Mach		Circuit (also MMIC)
	number, or Roman numeral for 1,000	MIN	Minimum
MA	Missile Alert or Missile Active	MIPPLE	RWR display switching between
MAD	Magnetic Anomaly Detection (also		ambiguous emitters
	Detector)	MIPS	Millions of (Mega) Instructions Per
MADD	Microwave Acoustic Delay Device		Second
MAF	Maintenance Action Form	ML	Missile Launch
MAG	Marine Aircraft Group or Magnetic	MLC	Main Lobe Clutter
MANPADS	Man-portable Air Defense System	MLV	Memory Loader Verifier
M&S	Modeling and Simulation	MLVS	Memory Loader Verifier Set
MASER	Microwave Amplification by Simulated	mm	Millimeter
	Emission of Radiation	MM	Man Month
MATE	Modular Automatic Test Equipment	MMIC	Microwave Monolithic Integrated
MAW	Missile Approach Warning system		Circuit (also MIMIC)
	(also MAWS) or Marine Aircraft Wing
MMW	Millimeter Wave (40 GHz or higher per	n	nano (10-9 multiplier) or number of
	IEEE, but commonly used down to 30		elements
	GHz)	N	Noise, Newton (force), Radiance,
MOA	Memorandum of Agreement		North, or No
MOAT	Missile on Aircraft Test (Phoenix test	n/a	Not Applicable (also N/A)
	on F-14)	NA	Numerical Aperture
MOE	Measure of Effectiveness	NAC	Naval Avionics Center (now part of
MOM	Methods of Moments (also MoM) or		NAWCAD)
	Metal-Oxide-Metal	NADC	Naval Air Development Center (now
MOP	Modulation on Pulse or Measure of		part of NAWCAD)
	Performance	NADEP	Naval Aviation Depot
MOPS	Million Operations Per Second	NASA	National Aeronautics and Space
MOS	Minimum Operational Sensitivity,		Administration
	Military Occupational Specialty, Metal-	NATC	Naval Air Test Center (now part of
	Oxide Semiconductor, or Measure of		NAWCAD)
	Suitability	NATO	North Atlantic Treaty Organization
MOSAIC	Modeling System for Advanced	NATOPS	Naval Air Training and Operating
	Investigation of Countermeasures		Procedures Standardization
MOU	Memorandum of Understanding	NAV	Navigation
MPD	Multi-Purpose Display or Microwave	NAVAIR	Naval Air Systems Command (also
	Power Device		NAVAIRSYSCOM)
MPE	Maximum Permissible Exposure	NAVSEA	Naval Sea Systems Command (also
mph	Miles per Hour		NAVSEASYSCOM)
MPLC	Multi-Platform Launch Controller	NAWCAD	Naval Air Warfare Center Aircraft
MPM	Microwave Power Module		Division (formerly Trenton, NADC,
MPPS	Million Pulses Per Second		NAC, and NATC)
MPRF	Medium Pulse Repetition Frequency	NAWCWPNS	Naval Air Warfare Center Weapons
mr or mrad	Milliradian		Division (formerly PMTC, NWC,
MRC	Maintenance Requirement Card or		NWEF, and NOMTS)
	Medium Range CAP	NBC	Nuclear, Biological, Chemical
MRE's	Meals Ready to Eat	NCTR	Non-Cooperative Target Recognition
ms	Milliseconds	NDI	Non-Developmental Item or Non
MSB	Most Significant Bit		Destructive Inspection
MSI	Multi-Sensor (also Source) Integration,	NEI	Noise Equivalent Power
	Management Support Issues, or	NEMP	Nuclear Electromagnetic Pulse
	Medium Scale Integration	NEOF	No Evidence of Failure
MSIC	Missile and Space Intelligence Center	NEP	Noise Equivalent Power
MSL	Mean Sea Level (altitude) or Missile	NF	Noise Figure or Noise Factor (also F)
MTBF	Mean Time Between Failures	NFO	Naval Flight Officer
MTI	Moving Target Indicator (or Indication)	NIPO	Navy International Program Office
MTTR	Mean Time To Repair	NIR	Near Infrared
MUXBUS	Multiplex Bus	NISC	Naval Intelligence Support Center
MVS	Minimum Visible Signal	nm	nanometer or Nautical Mile (also NM
mw	Microwave		or NMI)
mW	Milliwatt	NM or NMI	Nautical Mile (also nm)
MWIR	Mid Wave Infrared	NOHD	Nominal Ocular Hazard Distance
MWS	Missile Warning Set	NOMTS	Naval Ordnance Missile Test Station,
MY	Man Year		White Sands, NM (now part of
			NAWCWPNS)
NORAD	North American Air Defense Command	OSHA	Occupational Safety and Health Act
NPG or NPGS	Naval Post Graduate School	OSIP	Operational Safety Improvement
NRE	Non-Recurring Engineering		Program
NRL	Naval Research Laboratory	OSM	Operating System Memory or SMA NRZ
	Non Return to Zero		connector made by Omni-Spectra NSA
	National Security Agency	OT (&E)	Operational Test (and Evaluation)
nsec or ns	Nanosecond	OTD	Operational Test Director
NSN	National Stock Number	OTH	Over the Horizon
NSWC	Naval Surface Weapons Center	OTH-B	Over-the-Horizon Backscatter
nt	Nit (SI unit of luminance)	OTH-R	Over-the-Horizon Radar
NVG	Night Vision Goggles	OTH-T	Over-the-Horizon Targeting
NWC	Naval Weapons Center (China Lake)	OTRR	Operational Test Readiness Review
	now part of NAWCWPNS	OUSD	Office of the Under Secretary of
NWEF	Naval Weapons Evaluation Facility,		Defense
	Albuquerque, NM (now part of	oz	ounce
	NAWCWPNS)
NWIP	Naval Warfare Information Publication
NWP	Naval Warfare Publication
		p	pico (10-12 multiplier) or page
		P	Power, Pressure, or Peta (1015
O	Optical		multiplier)
OADR	Originating Agency's Determination	P3I	Pre-Planned Product Improvement
	Required	Pa	Pascal (pressure)
OAG	Operational Advisory Group	PA	Public Address or Program Analyst
O&MN	Operations and Maintenance, Navy	PBIT	Periodic Built-in-Test
	(also O&M,N)	PC	Pulse Compression, Personal
OBE	Overtaken (Overcome) By Events		Computer, or Photoconductive
OCA	Offensive Counter Air	PCA	Physical Configuration Audit
OEWTPS	Organizational Electronic Warfare Test	PCM	Pulse Code Modulation
	Program Set	Pd	Probability of Detection
OFP	Operational Flight Program	PD	Pulse Doppler
OJT	On-the-Job Training	PDI	PD Illuminator or Post Detection
O-Level	Organizational Level of Repair (also		Integration
	"O" Level)	PDP	Plasma Display Panel
OMA	Organizational Maintenance Activity	PDQ	Pretty Darn (sic) Quick
OMB	Office of Management and Budget	PDR	Preliminary Design Review
OMEGA	Optimized Method for Estimating	PDW	Pulse Descriptor Word
	Guidance Accuracy (VLF Navigation	PEL	Personnel Exposure Limits
	System)	PEM	Photoelectromagnetic
ONR	Office of Naval Research	PEO	Program Executive Officer
OOK	On-Off Keying	pf	Power Factor or Pico Farads
OPEVAL	Operational Evaluation	PFA	Probability of False Alarm
OPM	Office of Personnel Management	PGM	Precision Guided Munition
OPSEC	Operational Security	ph	Phot (unit of illuminance)
OPTEVFOR	Operational Test and Evaluation Force	Ph	Probability of Hit
OR	Operational Requirement or	pi	Greek letter π
	Operationally Ready	Pi	Probability of Intercept (also POI)
ORD	Operational Requirements Document	PID	Positive Identification
OSD	Office of the Secretary of Defense	PIN	Personal Identification Number
PIP	Product Improvement Plan or Predicted	QC	Quality Control
	Intercept Point	QED	Quod Erat Demonstradum (end of
Pixel	Picture Element		proof)(Satirically "quite easily done")
Pk	Probability of Kill or Peak	QML	Qualified Manufacturer Listing
PLSS	Precision Location Strike System	QPL	Qualified Parts List
PM	Phase Modulation or Program Manager	QRC	Quick-Reaction Capability
PMA	Program (also Project) Manager, Air	QRD	Quick Reaction Demonstration
PMAWS	Passive Missile Approach Warning	QRT	Quick-Reaction test
	System
PMT	Photomultiplier Tube
PMTC	Pacific Missile Test Center
	(PACMISTESTCEN) - now part of	r or R	Radius or Range or Roentgen
	NAWCWPNS	R	Resistance or Reliability
P-N	Positive to Negative Junction (also p-n)	rad	Radian
PN or P/N	Part Number	R&D	Research and Development
POC	Point of Contact	RADAR	Radio Detection and Ranging
POET	Primed Oscillator Expendable	RADHAZ	Radiation Hazard
	Transponder	RAM	Random Access Memory, Radar
POI	Probability of Intercept (also PI)		Absorbing Material, Rolling Airframe
POL	Polarization		Missile, or Reliability, Availability, and
POM	Program Objective Memorandum		Maintainability
POP	Pulse-on-Pulse or Product Optimization	R&M	Reliability and Maintainability
Program	R&R	Rest and Recuperation (Relaxation)
POST	Passive Optical Seeker Technology	RAT	Ram Air Turbine
	(Stinger missile)	RBOC	Rapid Blooming Offboard Chaff
PPI	Plan Position Indicator	RCP	Right-hand Circular Polarization
PPS	Pulses Per Second	RCS	Radar Cross Section
PRF	Pulse Repetition Frequency	RCVR	Receiver
PRI	Priority or Pulse Repetition Interval	RDT&E	Research, Development, Test, &
PROM	Programmable Read-only Memory		Evaluation
PRR	Production Readiness Review or Pulse	RDY	Ready
	Repetition Rate	RE	Radiated Emissions
PRT	Pulse Repetition Time	REC	Receive
Ps	Probability of Survival	RET	Return
P's & Q's	Pints and Quarts (small details)	RF	Radio Frequency
PSK	Phase-shift Keying	RFEXP	RF Expendables
PUPS	Portable Universal Programming	RFI	Radio Frequency Interference, Ready-
	System		For-Issue, or Request for Information
PV	Photovoltaic	RFP	Request for Proposal pw or
PW	Pulse Width	RFQ	Request for Quotation
PWB	Printed Wiring Board	RFSS	Radio Frequency Simulation System
			(Army)
		RGPO	Range Gate Pull Off
		RGS	Range Gate Stealer
q	electron charge	RGWO	Range Gate Walk Off (see RGPO)
Q	Quantity Factor (figure of merit),	RHAW	Radar Homing and Warning Receiver
	Quadrature, or Charge (coulomb), or		or Radar Homing All the Way
	aerodynamic pressure	RHAWS	Radar Homing and Warning System
QA	Quality Assurance	RINT	Radiation Intelligence
RIO	Radar Intercept Officer	SAR	Synthetic Aperture Radar, Special
RM	Radar Mile		Access Required, Semi-Active Radar,
rms or RMS	Root Mean Square		Search and Rescue, or Specific
RNG	Range		Absorption Rate
ROC	Required Operational Capability	SATO	Scheduled Airline Traffic Office
ROE	Rules of Engagement	SATS	Semi-Active Test System
ROI	Return on Investment	SAW	Surface Acoustic Wave
ROM	Read-only Memory or Rough Order of	SBIR	Small Business Innovative Research
	Magnitude	SCI	Sensitive Compartmented Information
ROR	Range Only Radar or Rate of Return	SCIF	Sensitive Compartmented Information
	(financial)		Facility
ROT	Rate of Turn	SCN	Specification Change Notice
ROWG	Response Optimization Working	SCRB	Software Configuration Review Board
	Group	SCUBA	Self-Contained Underwater Breathing
RPG	Receiver Processor Group		Apparatus
RPM	Revolutions per Minute	SCUD	Soviet short-range surface-to-surface
RPT	Repeat		missile
RPV	Remotely Piloted Vehicle	SE	Support Equipment
RRT	Rapid Reprogramming Terminal (a	SDLM	Standard Depot Level Maintenance
	type of MLVS)	SDI	Strategic Defense Initiative
RS	Radiated Susceptibility or Remote	Seabee	Someone in the Navy Construction
	Station		Battalion ("CB")
RSDS	Radar Signal Detecting Set	SEAD	Suppression of Enemy Air Defense
RSO	Range Safety Officer or Receiver, Set-		(pronounced "seed" or "C add")
	on	SEAL	Sea-Air-Land (Navy special forces)
RST	Receiver Shadow Time	sec	seconds (also S or s)
RT	Remote Terminal, Termination	SECDEF	Secretary of Defense
	Resistance, or Receiver/Transmitter	SEI	Specific Emitter Identification
	(also R/T)	SEMA	Special Electronic Mission Aircraft
RUG	Radar Upgrade	SERD	Support Equipment Recommendation
RWR	Radar Warning Receiver		Data
Rx	Receive	SHAPE	Supreme Headquarters Allied Powers
			Europe (NATO military command)
		SHF	Super High Frequency (3 to 30 GHz)
		SI	Special Intelligence or System
			International (Units)
		SIF	Selective Identification Feature
s, S, or sec	seconds	SIGINT	Signals Intelligence
S	Signal Power, Surface Area, Secret,	SIJ	Stand-In Jamming (also S/J)
	Electrical conductance (siemens),	SIM	Simulation
	South, Scattering (as in S-parameters),	sin	Sine
	or Seconds	SINCGARS	Single Channel Ground and Airborne
SA	Situational Awareness, Semi-Active,		Radio System
	Spectrum Analyzer, or Surface-to-Air	SIRFC	Suite of Integrated RF
	(also S/A or S-A)		Countermeasures (includes ATRJ and
SA-()	Surface-to-Air missile number ()		ATIRCM)
SAE	Society of Automotive Engineers	SJ	Support Jamming
SAM	Surface-to-Air Missile	S/J	Stand-In Jamming or Signal to
SA-N-()	Naval Surface-to-Air missile number ()		Jamming Ratio
SL	Side lobe or Sea Level (also S.L.)	SSBN	Nuclear Ballistic Missile Submarine
SLAM	Standoff Land Attack Missile	SSGN	Nuclear Guided Missile Submarine
SLAR	Side-Looking Airborne Radar	SSI	Small Scale Integration
SLC	Side Lobe Clutter	SSJ	Self Screening Jamming
SLOC	Source Lines of Code or Sea Lines of	SSM	Surface-to-Surface Missile
	Communication	SSN	Nuclear Attack Submarine
SM	Statute Mile (also sm) or Standard	SSRO	Sector Scan Receive Only
	Missile	SSW	Swept Square Wave
SMA	Scheduled Maintenance Action or Sub-	S&T	Science and Technology
	Miniature A connector	STANAG	Standardization Agreement (NATO)
SMC	Sub-Miniature C connector	STAR	System Threat Assessment Report
SML	Support Material List	stat	Statute
SMS	Stores Management Set or Status	STBY	Standby
	Monitoring (sub-) System	STC	Sensitivity Time Control or Short Time
S/N or SNR	Signal-to-Noise Ratio		Constant or SHAPE Technical Center
SNORT	Supersonic Naval Ordnance Research	STD	Software Test Description, Standard, or
	Track		Sexually Transmitted Disease
SNTK	Special Need to Know	STOVL	Short Takeoff and Vertical Landing
SOF	Safety of Flight	STP	Software Test Plan, or Standard
SOJ	Stand-off Jammer		Temperature and Pressure (0EC at 1
SONAR	Sound Navigation and Ranging		atmosphere)
SOO	Statement of Objectives (replacing	STR	Software (also System) Trouble Report
	SOW)	STT	Single Target Track
SOP	Standard Operating Procedures	STU	Secure Telephone Unit
SORO	Scan-on-Receive Only	SUBSAM	Subsurface-to-Air Missile
SOS	"Save Our Ship" (distress call with easy	SUT	System Under Test
	Morse code, i.e. C C C • • • C C C )	S/W	Software (also SW)
SOW	Statement of Work (being replaced by	SWC	Scan With Compensation
	SOO)	SWM	Swept Wave Modulation
SPAWAR	Space and Naval Warfare Systems	SYSCOM	Systems Command
	Command
SPEC	Specification
SPIRITS	Spectral Infrared Imaging of Targets
	and Scenes	t	Time (also T)
SPO	System Program Office	T	Time (also t), tera (1012 multiplier),
SPY	Radar on an AEGIS ship		Temperature, or Telsa
sq	Square	TA	Target Acquisition or Terrain
sr	Steradian		Avoidance
SRA	Shop Replaceable Assembly	TAAF	Teat, Analyze, and Fix
SRAM	Static Random Access Memory	TAC	Tactical Air Command (Air Force)
SRB	Software Review Board	TACAIR	Tactical Aircraft
SRBOC	Super Rapid Blooming Offboard Chaff	TACAMO	Take Charge and Move Out (airborne
SRD	Systems Requirements Document		strategic VLF communications relay
SRS	Software Requirements Specification		system)
SRU	Shop Replaceable Unit	TACAN	Tactical Air Navigation
SSA	Software (also Special or System)	TACDS	Threat Adaptive Countermeasures
	Support Activity, Source Selection		Dispensing System
	Activity, or Solid State Amplifier	TACTS	Tactical Aircrew Combat Training
SSB	Single Side Band		System
TAD	Threat Adaptive Dispensing,	TPWG	Test Plan Working Group
	Temporary Additional (also Active)	TQM	Total Quality Management
	Duty, or Tactical Air Direction	T/R	Transmit / Receive
T&E	Test & Evaluation	TRB	Technical Review Board
TALD	Tactical Air Launched Decoy	TRD	Test Requirements Document
TAMPS	Tactical Automated (formerly Aircraft)	TREE	Transient Radiation Effects on
	Mission Planning System		Electronics
TAR	Target Acquisition Radar or Training	TRF	Tuned Radio Frequency
	Administrative Reserve	TRR	Test Readiness Review
TARPS	Tactical Air Reconnaissance Pod	TS	Top Secret
	System (used on F-14)	TSS	Tangential Sensitivity
TAS	True Airspeed	TSSAM	Tri-Service Standoff Attack Weapon
TAWC	Tactical Air Warfare Center (Air Force)	TT	Target Track
TBA	To Be Announced	TTI	Time To Impact/Intercept
TBD	To Be Determined	TTG	Time-to-Go
TBMD	Theater Ballistic Missile Defense	TTL	Transistor-Transistor Logic
TD	Technical Directive (also Director)	TTR	Target Tracking Radar
TDD	Target Detection Device	TV	Television
TDM	Time Division Multiplexing	TVC	Thrust Vector Control
TE	Transverse Electric	TWS	Track While Scan or Tail Warning
TEA	Technology Exchange Agreement		System
TEAMS	Tactical EA-6B Mission Support	TWSRO	Track While Scan on Receive Only
TECHEVAL	Technical Evaluation	TWT	Travelling Wave Tube
TEL	Transporter Erector Launcher	TWTA	Travelling Wave Tube Amplifier
TEM	Transverse Electromagnetic	Tx	Transmit
TEMP	Test and Evaluation Master Plan	TYCOM	Type Commander
TEMPEST	Not an acronym. Certification of
	reduced electromagnetic radiation for
	security considerations	u	micron / micro (10-6 multiplier)
TERPES	Tactical Electronic Reconnaissance	U	Unclassified, Unit, or Unknown (on
	Processing and Evaluation System		RWR display)
TGT	Target	UAV	Unmanned (also uninhabited) Air (or
TIM	Technical Interchange Meeting		Aerial) Vehicle
TM	Telemetry, Transverse Magnetic, or	UCAV	Uninhabited Combat Air Vehicle (new
	Technical Manual		USAF term for UAV)
TMD	Theater Missile Defense	UDF	User Data File
TNC	Threaded Navy Connector	UDFG	User Data File Generator
TOA	Time of Arrival	UDM	User Data Module
TOJ	Track on Jam	UHF	Ultra High Frequency
TOO	Target of Opportunity (HARM		(300 MHz to 3 GHz)
	operating mode)	ULF	Ultra Low Frequency (3 to 30 Hz)
TOR	Tentative (also Tactical) Operational	Fm	Micrometer
	Requirement or Time of Receipt	UN	United Nations
TOS	Time on Station	UNK	Unknown (also U)
TOT	Time on Target	UPS	Uninterruptable Power Supply
TOW	Tube-Launched, Optically-Tracked,	us or Fs	Microseconds
	Wire-guided	U.S.	United States
TPI	Test Program Instruction	USA	United States of America or United
TPS	Test Program Set or Test Pilot School		States Army
USAF	United States Air Force	wb	Weber (magnetic flux)
USMC	United States Marine Corps	WBS	Work Breakdown Structure
USN	United States Navy	WC	Waveguide, circular
UTA	Uninhabited Tactical Aircraft	WGIRB	Working Group on Infrared
UUT	Unit Under Test		Background
UV	Ultraviolet	WIA	Wounded in Action
		WORM	Write Once Read Many (times) (Refers
			to optical disks)
v	Volts (also V), Velocity (also V or vt)	WOW	Weight on/off Wheels (also WonW or
V	Volts (also v), Velocity (also v or vt),		WoffW)
	Volume, or Roman Numeral for five	WPAFB	Wright-Patterson Air Force Base
VA	Veterans Administration, Volt-	WPN	Weapons Procurement, Navy or
	Amperes, or prefix for a Navy attack		Weapon
	squadron	WR	Waveguide, rectangular
VAQ	Prefix for Navy (or Marine) tactical	WRA	Weapon Replaceable Assembly
	EW squadron	WRD	Waveguide, rectangular double ridged
V&V	Validation and Verification	WSSA	Weapons System Support Activity
VCO	Voltage Controlled Oscillator	WVR	Within Visual Range
Vdc or VDC	Volts Direct Current
VDT	Video Display Terminal
VECP	Value Engineering Change Proposal	x	Multiplication symbol
VF	Prefix for Navy fighter squadron	X	Reactance, Experimental,
VFO	Variable Frequency Oscillator		Extraordinary, Roman Numeral for ten,
VFR	Visual Flight Rules		or X axis
VGPO	Velocity Gate Pull Off	X-EYE	Cross Eye
VGS	Velocity Gate Stealer	XO	Executive officer
VGWO	Velocity Gate Walk Off	X-POL	Cross Polarization
VHF	Very High Frequency (30 - 300 MHz)	XMIT	Transmit
VHSIC	Very High Speed Integrated Circuit
VID	Visual Identification
VLF	Very Low Frequency (3 to 30 kHz)	Y	Yes or Y-Axis
VLSI	Very Large Scale Integration	YAG	Yttrium-Aluminum Garnet
VLSIC	Very Large Scale Integrated Circuit	yd	Yard
VP	Prefix for Navy patrol squadron	YIG	Yttrium-Iron Garnet
VQ	Prefix for Navy special mission
	(usually reconnaissance) squadron
VRAM	Video Random Access Memory	Z	Impedance, Zenith, or Z-Axis
VS or vs	Velocity Search or Versus (also vs.)
V/STOL	Vertical/Short Take-off and Landing
	(also VSTOL)	1xLR, 2xLR	One (or two or three etc.) Times Lethal
vt	Velocity (also V or v)		Range
VTOL	Vertical Takeoff and Landing	1v1 or 1-v-1	One versus One (Aerial engagement)
VSWR	Voltage Standing Wave Ratio
VVA	Voltage Variable Attenuator
		2D	Two Dimension
W	Watts, Weight, or West	3D	Three Dimension
W&T	Warning & Targeting	3M	Navy Maintenance and Material
WARM	Wartime Reserve Mode		Management System

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Electronic Warfare and Radar Systems Engineering Handbook- Abbreviations & Acronyms -

Electronic Warfare and Radar Systems Engineering Handbook
- Abbreviations & Acronyms -