
A Su-25SM3 attack aircraft is at the Khmeimim airbase, Syria, April 2018
Su-25SM3 version differs significantly even from upgraded Su-25SM strike-fighters. The Su-25SM3 incorporates a host of sensor and defensive systems upgrades. The core of the modernization package is the Vitebsk-25 EW system, avionics, and weapon control systems.
The Vitebsk-25 includes an L-370-3S digital active jamming station. It can locate the likely enemy's azimuth and the radar emission type as well as suppress the signal in different frequency ranges. It also poses protective measures against various missiles. External elements of the L-370-3S digital active jamming station are marked by red squares.
The Russian Aerospace Forces actively use Su-25SM(x) attack aircraft in order to provide a close air support to government forces combating militants across the country.