Modernization 2K12 Kvadrat SA-6 Gainful ground-to-air defense system YugoImport Partner 2013 0307134.

Partner 2013
International fair of armaments and defence equipment
25 - 28 June 2013
Belgrade, Serbia

Upgrade of the "KVADRAT" ("KUB" or 2K12) missile system opens the way for higher combat effectiveness, proability of survival and system resistance to jamming. The upgraded system has numerous advantages compared to the standard "KVADRAT", including full digitalization of system components, replacing of the old tube technology by semi-conductor or processor technology, Digital Signal Processing, Possibility for C3I, C41 interfaces, greater reliability, greater resistance to jamming and System passivisation.

The 2K12 Kub (NATO reporting name: SA-6 "Gainful") is a Soviet-made mobile surface-to-air missile system for low to medium-level air defence system designed to protect ground forces from air attack. The system was set the requirements of being able to engage aerial targets flying at speeds of 420–600 m/s at altitudes of 100 m to 7 km (4 mi) at ranges up to 20 km, with a single shot kill probability of at least 0.7

The uprade program is including upgrade of surveillance and tracking radar station, ugrade of command and control system, upgrade of mobile surveillance and acquisition radar, as well as uppgrade of the radar height finder.

The upgrade kit for the surveillance and tracking radar station includes integration of new television and thermal-imaging camera, semi-conductor low noise amplifier - (LNA/K-11, LNA/K-31), digital mowing target indicators, new multifunctional indicator, new digital indicator as well as figital system for automatic antenna direction.

Upgrade of command and control system K-1 included new automated command and control system, know as cabin UKUV.

The upgrade kit for the mobile surveillance and acquisition radar 1RL128D includes integration of semiconductor low noise amplifier, digital MTI, new digital indicators, new extractor and new tracker. Optical cable is used to connect the modernized mobile surveillance and acquisition radar to the new command cabin. Radar height finder is connected to command cabin by optical cable and via Ethernet to modernized mobile surveillance and acquisition radar.