Crucifier (Frigate)
Arbitrator (Cruiser)
Sentinel (Electronic Attack Ship)
Curse (Combat Recon Ship)
Pilgrim (Force Recon Ship)
Tracking Disruptors
Particle Dispersion Projectors - increase optimal range of Electronic Warfare modules, but have decreased shields as a drawback.
Tracking Diagnostic Subroutines - increase tracking speed of own ship and optimal range disruption of Tracking Disruptors but has decreased shields as a drawback.
Tracking Computers
Tracking Diagnostic Subroutines - increase tracking speed of own ship and optimal range disruption of Tracking Disruptors, but has decreased shields as a drawback.
Tracking disruptors reduce both the optimal and falloff range OR the tracking ability of the target's turrets depending on which script is used. With no script fitted they reduce all three, but to a lesser extent.
Tracking computers increase the optimal range and tracking ability of the ship's turrets.