Signal scramblers were devices that prevented others from tracking the sources of transmissions in the area.
In 32 BBY, only a week before the Boonta Eve Classic, Anakin Skywalker constructed and gifted a signal scrambler device to his friend, Pala Kwi'teksa, to protect her from Gardulla the Hutt, against whom both children had conspired to rescue from her clutches several Ghostling children, whom Gardulla had kidnapped to use as ornaments in her luxurious if notorious pleasure garden.
- Star Wars: The Old Republic
- Episode I Adventures 6: The Hunt for Anakin Skywalker (First appearance)
- The Truce at Bakura Sourcebook
- Onslaught at Arda I
- Star Wars: The Card Game – The Forest Moon (Card: Signal Scrambler)