Barkem Squirrel, on 22 December 2015 - 08:55 AM, said:
Saw this on someone's quote, thought I'd address it since it doesn't appear anyone did beyond the lore response.
Hard counters disable ECM completely, including lock delays.
Soft counters disable ECM enough to lock on, but doesn't stop the 25% lock delays.
Hard counters:
Counter mode ECM
BAP
ER PPC (Don't ask, I honestly don't know why).
NARC Missile Beacon (fired at ECM user)
Soft counters:
Sweet spot (the range in which you can lock onto them regardless; varies with your sensor range).
TAG (the 25% lock speed bonus is pit against ECM's 25% lock delay penalty, cancelling each other out for normal lock speed instead of accelerated lock speed).
PPC (allows locks, does not cancel 25% lock delay).
Interesting stuff:
Artemis (for LoS, interestingly, Artemis's 25% lock speed bonus does work... But if the enemy is soft-countered, its your 25% bonus versus their 25% penalty so they cancel out).
NARC Missile Beacon -- ECM destroys this on anyone other than itself.
Hope that helps.