Angel ECM

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Overview & Gameplay

AECM, or Angel ECM, is an experimental advanced version of the Guardian ECM (GECM) Suite, and greatly enhances ECM technology on the battlefield. The AECM suite trades protecting only the host from radar detection with serving the nearby units with advanced electronic counter measures. It not only creates a 600m diameter "bubble" (300m in every direction) of signal distortion that makes all friendly units in range harder to detect by reducing their radar detection range by 700m, It provides further advantages to them, at the cost of the host being the only target detectable at normal radar ranges.
An asset with AECM does not give itself reduced radar detection, even though it still disables NARC beacons on it. Assets with AECM do not provide ECM to other assets with AECM, both will be detected as normal assets without GECM.

Additionally AECM provides NARC cover for friendlies under it's umbrella (including the carrying host):

  • NARCs fired on units under the umbrella will never activate
  • an already active NARC will be ineffective while the unit it is on is under AECM cover
  • TAG designation time might be affected


When an asset with AECM first powers up, the AECM will not appear to be on. Cycling the asset's radar to passive and then back to active will make the AECM effect appear on the user's radar. This is not necessary, however, because even if the AECM effect does not appear, so long as the radar is active, the AECM will be working.


The Angel ECM Suite is an advanced version of the Guardian ECM Suite operating on a broader spectrum and greatly advances ECM technology on the battlefield. Development of the Angel began in the Draconis Combine shortly after the Battle of Luthien, but despite assistance from ComStar, cost overruns and internal problems within both powers kept it in its experimental stages for a long time and delayed its widespread deployment. Clan Goliath Scorpion, having learned of the Angel's development, started copying the technology to create their own version.

BattleTech reference


The following assets equip AECM:

  Inner Sphere
All lists are current as of release 0.11.4