http://bg.battletech...ic,27035.0.html
So I got curious and asked the writers of the board game what "in the radius of ECM meant" and the response I got was:
"In order for ECM to have an effect in Doubleblind rules, the affected unit must be within the ECM's bubble. It is not sufficient for an ECM bubble to be in line of sight."
So more or less, ECM shouldn't be a radar jammer unless you are inside the bubble, which would work perfectly with the modules I suggested. And for the last couple posts, he also linked me some more information on Ghost Targets;
Ghost Targets
An ECM suite can be tuned to generate “ghost targets” that may affect the ability of enemy units to properly
target friendly units. The ECM suite loses its normal functions when used in this way. The player must
announce the switch to ghost target generation in the End Phase of any turn, or may set the suite for ghost
target generation at the start of the scenario. In either case, note the change on the record sheet of the unit
in question.
At the start of every Weapon Attack Phase when a unit has an ECM suite tuned to generate ghost targets,
the unit may target either one friendly or one enemy unit within range of its ECM suite (a unit may target
itself). The unit using ghost targets makes a Piloting/Driving Skill Roll with a +3 modifier; no other
modifiers are applied to this roll. If the roll fails, there is no effect. If successful, apply a +1 to-hit modifier to
all ranged attacks made against the target if the target is friendly to the unit using ghost targets, or a +1 tohit modifier to all the target's ranged attacks if the target is an enemy. This modifier lasts until the end of
the phase; to generate it again the next turn requires a new skill roll.
Multiple ECM suites generating ghost targets may affect the same unit, applying a +1 to-hit modifier per
successful roll, to a limit of +3 in friendly ghost target modifiers and +3 in enemy modifiers.
Active Probe: A unit with any type of active probe ignores any ghost target to-hit modifiers, regardless of
the range of their probe, unless the unit with the probe is being jammed or has active stealth armor.
Edited by DocBach, 15 February 2013 - 10:50 PM.