page_title: Electromagnetic pulse
section_title: Control
hierarchical_section_title: Electromagnetic pulse / Control
caption_attribution_description: A right front view of an E-4 advanced airborne command post (AABNCP) on the electromagnetic pulse (EMP) simulator for the testing. Location: KIRTLAND AIR FORCE BASE, NEW MEXICO (NM) UNITED STATES OF AMERICA (USA). Call Sign&#160;: USAF-50125
context_page_description: An electromagnetic pulse, also sometimes called a transient electromagnetic disturbance, is a short burst of electromagnetic energy. Such a pulse's origin may be a natural occurrence or man-made and can occur as a radiated, electric, or magnetic field or a conducted electric current, depending on the source.
  EMP interference is generally disruptive or damaging to electronic equipment, and at higher energy levels a powerful EMP event such as a lightning strike can damage physical objects such as buildings and aircraft structures. The management of EMP effects is an important branch of electromagnetic compatibility engineering.
  Weapons have been developed to deliver the damaging effects of high-energy EMP.
context_section_description: Like any electromagnetic interference, the threat from EMP is subject to control measures. This is true whether the threat is natural or man-made.
  Therefore, most control measures focus on the susceptibility of equipment to EMP effects, and hardening or protecting it from harm. Man-made sources, other than weapons, are also subject to control measures in order to limit the amount of pulse energy emitted.
  The discipline of ensuring correct equipment operation in the presence of EMP and other RF threats is known as electromagnetic compatibility (EMC).
caption: EMP simulator HAGII-C testing a Boeing E-4 aircraft.
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