EVE New Citizens Q&A

Magnetometric Sensor Compensation so how does this work, protection or is it related to ship equipment modules ?

The chance to be jammed is "jamming strength"/"sensor strength of the ship", so lets say the jamming str. is 5 and your sensor str. is 10 then there's a 50% chance per cycle to be jammed. If you increase your sensor strength to 15 then the chance becomes 5/15th = 33%.

Every race has their own sensor type; Radar for Amarr ship, Ladar for Minmatar etc etc. Gallente uses Magneto sensors, so if you fly Gall ships and you train that skill you lower the chance to be jammed, would you switch to fly an Amarr ship then that magneto skill will do nothing and you should also train the Radar skill.

If you are interested in jamming and countering then you can take this further, since you may well have more than one ECM module directed at you.

It makes it slightly simpler if we look at the chance of not being jammed, so in the example quoted you have a 50% chance of being jammed, which equals a 50% chance of not being jammed per cycle.

If 2 ECMs are used on you, your chance of not being jammed is 50% x 50% = 25%
3 ECMs gives 50% x 50% x 50% = 12.5%
And with 4 ECMs on you it is 50% x 50% x 50% x 50% = 6.25%

If you increase your sensor strength, as in the example above, from 10 to 15 the chances of not being jammed per cycle are:
1 ECM = 66.6%
2 ECM = 43.5%
3 ECM = 28.7%
4 ECM = 18.9%

I won't go into all the consequences of these numbers. If you want to get involved in EWAR, either applying it or defending against it, it's worth putting the calculations into a spreadsheet and seeing the results of various strategies.