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Terms for subject United States (7766 entries)

electromagnetic environment	The resulting product of the power and time distribution, in various frequency ranges, of the radiated or conducted electromagnetic emission levels encountered by a military force, system, or platform when performing its assigned mission in its intended operational environment
electromagnetic environmental effects	The impact of the electromagnetic environment upon the operational capability of military forces, equipment, systems, and platforms
electromagnetic hardening	Action taken to protect personnel, facilities, and/or equipment by blanking, filtering, attenuating, grounding, bonding, and/or shielding against undesirable effects of electromagnetic energy
electromagnetic interference	Any electromagnetic disturbance, induced intentionally or unintentionally, that interrupts, obstructs, or otherwise degrades or limits the effective performance of electronics and electrical equipment
electromagnetic intrusion	The intentional insertion of electromagnetic energy into transmission paths in any manner, with the objective of deceiving operators or of causing confusion
electromagnetic jamming	The deliberate radiation, reradiation, or reflection of electromagnetic energy for the purpose of preventing or reducing an enemy’s effective use of the electromagnetic spectrum, and with the intent of degrading or neutralizing the enemy’s combat capability
electromagnetic operational environment	The background electromagnetic environment and the friendly, neutral, and adversarial electromagnetic order of battle within the electromagnetic area of influence associated with a given operational area
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
electromagnetic radiation	Radiation made up of oscillating electric and magnetic fields and propagated with the speed of light
electromagnetic radiation hazards	Transmitter or antenna installation that generates or increases electromagnetic radiation in the vicinity of ordnance, personnel, or fueling operations in excess of established safe levels
electromagnetic spectrum	The range of frequencies of electromagnetic radiation from zero to infinity. It is divided into 26 alphabetically designated bands
electromagnetic spectrum control	The coordinated execution of joint electromagnetic spectrum operations with other lethal and nonlethal operations that enable freedom of action in the electromagnetic operational environment
electromagnetic spectrum management	Planning, coordinating, and managing use of the electromagnetic spectrum through operational, engineering, and administrative procedures
electromagnetic vulnerability	The characteristics of a system that cause it to suffer a definite degradation (incapability to perform the designated mission) as a result of having been subjected to a certain level of electromagnetic environmental effects
electronic attack	Division of electronic warfare involving the use of electromagnetic energy, directed energy, or antiradiation weapons to attack personnel, facilities, or equipment with the intent of degrading, neutralizing, or destroying enemy combat capability and is considered a form of fires
Electronic Compliance Assistance Tool	ECAT
Electronic Filing Interface	EFI
electronic intelligence	Technical and geolocation intelligence derived from foreign noncommunications electromagnetic radiations emanating from other than nuclear detonations or radioactive sources.
electronic masking	The controlled radiation of electromagnetic energy on friendly frequencies in a manner to protect the emissions of friendly communications and electronic systems against enemy electronic warfare support measures/signals intelligence without significantly degrading the operation of friendly systems
Electronic Numerical Integrator And Computer	ENIAC