Transporter scrambler
A transporter scrambler (also called a transport scrambler or pattern scrambler) was a device designed to discourage transporter use in a certain area by interfering with rematerialization. Transport scramblers could be programmed to recognize particular signals and only interfere with enemy transporter systems.

During the Klingon invasion of Ajilon Prime in early 2373, they used transport scramblers in ground battles to prevent the enemy from deploying troops effectively. ()

A transporter scrambler was part of the security system installed aboard Deep Space 9. In 2373, Lupaza found a way to re-tune the scrambler and beam into Kira Nerys' quarters. ()

The Cardassians routinely booby trapped their abandoned facilities, such as Empok Nor, with pattern scramblers rigged to activate if they detect a non-Cardassian transporter signal. Miles O'Brien remarked in 2373 that these devices could be "messy". ()

Soukara was protected by transporter scramblers in 2374, making transport to any area of the planet impossible. ()

See also
Remat detonator
Transport inhibitor

External link
 

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Transporter technology