I have no thorough information about the specs since I am but an ordinary reader and not directly involved in the creation of this rumoured technology. This text is taken from the article itself, so perhaps this will shed some light:
As the Russian jet approached the US vessel, the electronic device disabled all radars, control circuits, systems, information transmission, etc. on board the US destroyer. In other words, the all-powerful Aegis system, now hooked up - or about to be - with the defense systems installed on NATO’s most modern ships was shut down, as turning off the TV set with the remote control.
The Russian Su-24 then simulated a missile attack against the USS Donald Cook, which was left literally deaf and blind. As if carrying out a training exercise, the Russian aircraft - unarmed - repeated the same maneuver 12 times before flying away.
Without any reports at all from any MSM source or confirmation from Russia, people waved this away as rumor, speculation or an outright hoax, but in March 2015, Russian News agency Sputnik, which is owned an operated by the Russian government
, announced that Russia had unveiled a new "revolutionary electronic warfare system
Russia's new Richag-AV radar and sonar jamming system can be mounted on helicopters, ships and other military equipment to jam potential adversaries' weapons systems from distances of several hundred kilometers away; it has been hailed by developers as having no analogue anywhere in the world.