Multispectral Jammer - effective against any race but weaker than the race specific versions
Magnetometric Jammer (Aqua icon) - effective against Gallente
Ladar Jammer (Red Icon) - effective against Minmatar
Radar Jammer (Gold Icon) - effective against Amarr
Gravimetric Jammer (Blue Icon) - effective against Caldari
ECM Burst - effective against any race, but high demand of capacitor
Signal Distortion Amplifier - Increases strength of all ECM modules, except ECM Bursts.
Rigs:

Particle Dispersion Augmentors - strengthen jamming, but decreased shields as a drawback
Particle Dispersion Projectors - increase optimal range of Electronic Warfare modules, but decreased shields as a drawback
Signal Disruption Amplifiers - reduce capacitor cost of all ECM and Burst modules. No drawback.

Scanning info ***
1 au = 149.000.000 km
3 au = 447.000.000 km
7 au = 1.043.000.000 km
48 au = 7.152.000.000 km
Max Scanner Range = 14.413 AU
(2.147.483.647/149.000.000)