Test Wiki Please Ignore

Signature Radius is how EVE measures the 'size' of your ship. It determines three very important things:

• How quickly ships can lock on to you
• How easy you are to locate with combat probes
• How easy you are to hit with guns and drones

The larger your signature radius, the bigger your ship. A large sig radius means you are locked onto more quickly and are easier to hit. A capsule has a sig radius of only 25m, meaning it is pretty hard to hit and you lock it slowly. A titan has a massive sig radius of over 10km, meaning you probably won't miss at all (at least not because of sig radius) and you can lock on near instantly.

You ship's sensors have four main stats:

• Targeting Range
• Sensor Strength
• Scan Resolution
• Signature Radius
• Maximum Locked Targets

Targeting range and max locked targets should be pretty self explanatory, they are the maximum range you can target out to and the maximum number of targets you can have locked at any time. Sensor strength is doesn't directly effect your locking at all, but instead determines how well your ship resists ECM, a high sensor strength means lower chance for ECM to land. Scan resolution is what determines how quickly you lock onto a target, a higher scan res means faster locks.

This is EVE, so there will be maths. Mercifully this is some relatively simple maths (at least compared to things like the tracking formula).

scanRes is the scan resolution of your ship, sigRad is the signature radius of the enemy ship, asinh is a trig function, you don't really need to know the theory behind it. Beyond that it works on diminishing returns, as you add more and more the amount of change gets less and less.

As a quick example: A Megathron locking a Punisher

Lock time = (10000/95)/(asinh(38))
          = 105.26 / 4.33
          = 24.31

So that's approximately 24 second lock time.

This wouldn't be eve if we couldn't change all the stats of our ship and our opponent's, and we have quite a few options

There are a lot of things that can increase sig radius, though interestingly not very many that lower it, all of which are fairly niche.

• Microwarpdrives apply a massive multiplier to your sig radius when active (a T1 microwarpdrive gives a 500% increase)
• Shield Extenders will bump up your sig radius by a flat amount, which is applied before percentage modifiers
• Fitting inertial stabilizers or shield rigs give a moderate percentage increase (both give a 10% increase at T1)
• Being hit by someone else's target painter will give a 25-30% increase to sig radius each, more for faction variants. These are subject to stacking penalties.

• Assault frigate role bonuses half the amount of sig bloom created by a microwarpdrive
• Halo implant sets give a percentage reduction to sig radius
• A fleet booster running the evasive maneuvers warfare link will reduce the sig radius of fleet members
• A Ragnarok in a command slot gives fleet members under them a percentage reduction to sig radius.

• Increasing the Long Range Targetting skill will give you a 5% bonus to range per level.
• Fitting sensor boosters or signal amplifiers, or being the target of remote sensor boosters, which is improved if you load a targeting range script into the sebo or remote sebo(at the cost of the sebo's other effects)
• Being the target of a sensor dampener (and it's made even worse if they also load a targeting range script, though it loses other effects)
• Fitting warp core stabilizers massively reduces your lock range

Bear in mind your max targets is capped by both skills and your ship. So if your skills allow for five targets but the ship only allows you to have three locks, then you can only have three locks at a time. Similarly if you only have skills for five locks but your ship allows seven you are stuck at five target locks. There are very few ways to adjust your max targets

• Training target management skills ups your max targets
• Fitting an automated targeting system gives you +2 max target locks, even when it isn't running. (When it is running you it automatically locks onto shit, which may not be what you want)

Most of the modules that effect targeting range also effect scan resolution.

• Fitting sensor boosters or signal amplifiers, or being the target of remote sensor boosters, which is improved if you load a sensor resolution script into the sebo or remote sebo(at the cost of the SeBo's other effects)
• Training the Signature Analysis skill
• Zainou 'Gypsy' Signature Analysis implants
• Someone in a fleet command role has leadership you get a nice little bonus
• Being the target of a Sensor Dampener (and it's made even worse if they also load a scan res script, though it loses other effects)
• Fitting warp core stabilizers massively reduces your lock speed

Electronic Warfare is weird, just go read the actual page about it.