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{{Status|Canon}} | |||
{{Wikipedia|electronic countermeasure}} | |||
{{Quote|Missile guidance locks jammed. Their ECM spoofed the guidance packages, sir.|[[Lieutenant]] [[Aki Hikowa]]}} | |||
'''Electronic countermeasures''' (also known as '''ECM''') are a subsection of electronic warfare which includes any sort of electrical or electronic device designed to trick or deceive [[radar]], sonar, or other detection systems like infrared and [[laser]]. | |||
== Overview == | |||
Electronic countermeasures may be used both offensively or defensively in any method to deny targeting information to an enemy. The system may make many separate targets appear to the enemy, or make the real target appear to disappear or move about randomly. It is used effectively to protect aircraft from guided missiles. Most air forces use ECM to protect their aircraft from attack. That is also true for military ships and on tanks to fool laser or infrared guided weapons. They are frequently coupled with stealth advances so that the ECM system has an easier job. | |||
Often ECM takes the form of jamming. | |||
== Usage in the Human-Covenant War == | |||
[[Covenant]] vessels such as the [[Covenant stealth ship]] possess ECM to counter the [[guidance lock]]s on [[Archer missile]]s. One of these used ECM to counter missiles fired by the {{UNSCShip|Iroquois}} during the [[Battle of Sigma Octanus IV]]. Faced with no choice, [[Commander]] [[Jacob Keyes]] then rammed the corvette, smashing it and making its remains fall onto the [[Sigma Octanus IV|planet]].<ref>'''Halo: The Fall of Reach''', ''page 196''</ref> Much larger ships, such as the {{Class|ORS|heavy cruiser}} ''[[Incorruptible]]'', also possessed electronic countermeasures for countering enemy [[Plasma turret|plasma torpedoes]], as well as anti-ECM measures.<ref>'''Halo: Ghosts of Onyx''', ''page 193-194''</ref> | |||
UNSC ships, such as [[UNSC frigate|frigates]], also possess ECM systems. A frigate's countermeasures are capable of jamming an {{Class|SDV|heavy corvette}}'s communications for several minutes, as evidenced by the {{Class|Paris|heavy frigate}} {{UNSCShip|Savannah}} disrupting the ''[[Ardent Prayer]]'''s communications during [[Operation: UPPER CUT]].<ref>'''[[Halo: Reach]]''', campaign level ''[[Long Night of Solace (level)|Long Night of Solace]]''</ref> | |||
==List of appearances== | |||
*''[[Halo: The Fall of Reach]]'' {{1st}} | |||
*''[[Halo: Ghosts of Onyx]]'' | |||
*''[[Halo: Reach]]'' | |||
*''[[Halo: Fall of Reach]]'' | |||
**''[[Halo: Fall of Reach - Covenant|Covenant]]'' | |||
==Sources== | |||
{{Ref/Sources}} | |||
[[Category:Electronic warfare technology]] | |||
