Damage type to protect against:

Guristas - Kinetic & Thermal
Serpentis - Kinetic & Thermal
Mordus - Kinetic & Thermal
Blood - EM & Thermal
Sansha - EM & Thermal
Angel - Kinetic, EM, Thermal & Expl
Mercenary - Kinetic, EM, Thermal & Expl

Drone sentry range:

EM : Acolyte Infiltrator Praetor Curator 35+20 KM
TH : Hobgoblin Hammerhead Ogre Garde 20+10 km
EX : Warrior Valkyrie Berserker Bouncer 58+35 km
KIN : Hornet Vespa Wasp Warden 50+25 km

Main damage type to shoot at the enemy:

Guristas - Kinetic / Thermal
Serpentis - Thermal / Kinetic
Blood Raider - Thermal / EM
Sansha's Nation - EM / Thermal
Angel Cartel - Kinetic / Expl / Thermal
Minmatar Fleet - Thermal / Expl
Amarr Navy - EM / Thermal
Mercenaries Comander/Over Lord - Kinetic / Thermal
Mercenaries Wingman Some Named - Expl / EM
Angels/Gist - All types of damage
Blood raiders/Corpus - EM / Thermal
Guristas/Pith - Kinetic / Thermal
Sanshas/Centurian - EM / Thermal
Serpentis/Core - Kinetic / Thermal

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)