Transponder code

An Identify Friend/Foe transponder (IFF transponder) was a device in most starships that broadcast data about that ship and its affiliation. Some starships, like the Millennium Falcon, had multiple IFF beacons that allowed the ship to have multiple identities. Some automated ships used IFF broadcast streams to dictate their actions. The automated war cruiser Valiant defended Rogue Squadron pilot Tycho Celchu when he recalibrated his IFF transponder to broadcast the same beacon used by the Another Chance. IFF transponders can also be used to trick enemies into firing on each other by using an IFF transponder scramble command.

Appearances

 * Star Wars: X-Wing: The Bacta War
 * Star Wars: Galaxies: Jump to Lightspeed