JAMMERS:
Cald: Gravimetric
Gal: Magnetometric
Amarr: Radar
Mini: Ladar

Angel - Explosive (Kine/Exp)
Amarr - Thermal (EM/Therm)
Blood Raiders - EM (Em/Therm)
Caldari - Thermal (Kine/Therm)
CONCORD - Thermal (All)
Gallente - Thermal (Kine/Therm)
Guristas - Kinetic (Kine/Therm)
Khanid - Thermal (EM/Therm)
Mimintar - Thermal (Therm/Exp)
Mercenary - Thermal (EM/Therm/Kine)
Mordus - Kinetic (Kine/Therm)
Odamian - All (Kine/Therm)
Drones - EM (All)
Rogue Pirates - All (EM/Exp/Kine)
Sansha - EM (EM/Therm)
Serpentis - Thermal (Kine/Therm)

Stacking Effectiveness:
1st mod: c(1) = 100,00% effectiveness
2nd mod: c(2) = 86,91% effectiveness
3rd mod: c(3) = 57,06% effectiveness
4th mod: c(4) = 28,30% effectivenes

Peri Stark > i have a box of rocks
Krel Morgantine > i am dumb as a box of rocks