Hyperspace transponder

A hyperspace transponder was a device that allowed messages to be sent through hyperspace. Some transponders were built small enough that they became handheld devices. Hyperspace transponders were not always reliable in sending messages.
Hyperspace transponders were internal components used in military homing beacons.The Essential Guide to Weapons and Technology
Jedi Master Mara Jade Skywalker used at least two hyperspace transponders in her lifetime; one she used as a homing beacon during her time as Emperor's Hand (this transponder was hidden in a vibroblade that she bequeathed to her son and was promptly utilized as a tracking device afterward) and the other she used to track Lumiya after their vicious lightsaber duel on the moon of Hesperidium.
==Appearances==
*Star Wars: The Old Republic
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*Onslaught at Arda I
* Star Wars: Dark Empire
*Before the Storm
*The New Jedi Order: Recovery
*Legacy of the Force: Sacrifice
===Non-canon appearances===
*Star Wars: Yoda Stories
==Sources==
*Galladinium's Fantastic Technology
*The Essential Guide to Weapons and Technology
*Star Wars Encyclopedia
*The Complete Star Wars Encyclopedia
==Notes and references==
Transponder