The new equipment is intended mainly for submarines of the Borei-class, the Dolphin-class SSBN and the diesel-electric.

Currently, according to Russia's Izvestia, the buoys, the Burak-M, are being tested on Russian Navy submarines.

"Burak-M" indicates the electronic warfare (EW) devices. They operate according to a simple algorithm: first, they are fired from a submarine onto the water surface, where they are triggered and start working in jamming mode.

The data transmitted by the deployed sonobuoy will appear on the plane's onboard computers. The operator then compares this data to their database, and if a match is found, a nearby submarine is believed to exist.

The estimated range of the new jammer is not clear, but for Russian Submarines it will certainly add an significant capability.

Maritime Business World