Sallyann1234, all ECM (electronic counter measure) is borrowed from the military. The "AA version" is no difference.
It is not completly known which technology (active, passive or a mix of it) is used in El Al, as in every VIP aircraft flying around the world with ECMs. And I'm pretty sure they wont tell you.
If they are producing too many false alarms ... - well, that's what they want to find out.
Dani