Range of ECM jamming ?

Have any specific information about the range of the system jamming ECM / EW / Jammer or radar AESA ?

U.S. Destroyer Dodges 2 Missiles Near Yemen

The Mason has two such spoofing systems on board, the AN/SLQ-32 electronic countermeasures suite, and the Mk 36 Super RBOC chaff system. The AN/SLQ-32 electronic countermeasures suite is on virtually every Navy surface ship. The system works by jamming radar seekers of anti-ship missiles, causing them to either pursue phantom targets or by reducing the effective range of the seeker, enabling the ship to evade the missile. The Mk 36 Super RBOC system usually works with the AN/SLQ-32, and works by firing rockets that dispense chaff (essentially aluminum foil), creating false targets to confuse the seeker of an incoming missile. These “foil packets,” to use Chappy Sinclair’s term from the original Iron Eagle, were first used in World War II to confuse German radar.

http://www.scout.com/military/warrior/story/1716096-u-s-destroyer-dodges-2-missiles-near-yemen

EX: AN/SLQ-32 (warship), AN/ALQ-131(V)/Sorbtsiya L-005 (aircraft), APG-81 (radar)…..

I think the range is very short, probably less than 10 m