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IFF

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IFFtags

IFF Tags identifying UNSC soldiers

Identification of Friend or Foe[1] (otherwise known as IFF) is a system used by the UNSC to tag friendly or hostile units for easy identification on a Heads-up display or motion sensor.[2] The equipment of a friendly unit generates a signal on a specific frequency, which is interpreted as a "friendly" signal by the receiver. If a signal is not generated, then unit is tagged as a hostile. Friendly units appear as yellow dots on the motion sensor, while the crosshairs of a HUD turn green when pointed at them. Hostile units show up as red on a motion sensor, and the HUD crosshairs turn red.

In the Halo 2 level, Gravemind, John-117 managed to rescue five UNSC prisoners of war. This was due to Cortana identifying their "IFF Transponders", which were still with the Marines.

Most UNSC ships, ranging from civilian Freighters to UNSC Navy warships, possess IFF transponders displaying their identity, allegiance, and classification.[3]

AppearancesEdit

SourcesEdit

  1. Halo: Contact Harvest, page 178
  2. IFF at Wikipedia
  3. Halo: Contact Harvest, page 176

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