Babylon 5 Electromagnetic Shield

Electromagnetic Shield
Dominant Faction: Vorlon Empire
Effect: All craft attempting to detect and/or fire upon a ship with this device active suffers a penalty of -3D+2 to Fire Control and Sensors.. In addition, the user of this device suffers a -2D+1 penalty to their own Sensors and Fire Control attempts.
Description: Generally referred to as an EM shield, this field of powerful electromagnetic energy surrounds a vessel, making it difficult to get a proper sensor lock. Like the tension between opposite polar magnets, weapons fire also slows down slightly when it comes into contact with the field.