The UKR-RL container, in turn, solves the main shortcoming of the Su-34 (Fullback) airborne radar, V004 Chišnik, in the form of a limited field of view. As a result, the crews flying these aircraft in Syria had very little time to find and identify rapidly approaching targets when flying at ground altitudes. The UKR-RL container was first tested in Syria. Its use led to a significant increase in the accuracy of attacks on ground targets. The M402 Pika-M radar, which contains the UKR-RL container, was designed specifically for the Su-34 (Fullback) aircraft, but with a view to future use on unmanned aerial vehicles. For this reason, it has relatively small dimensions and low weight.
reconnaissance: - UKR-RL type container with side-emitting radar (SLAR) type M402 Pika-M from NII Kulon workshop with a weight of 350 kg, operating frequency 7.7 GHz, range 60 km on land, or 120 km at sea, and resolution 2 to 5 m on land, or 6 to 20 m at sea, data storage device and data link for transmitting the obtained information in real time. The large side RL antennas of type M402 are supplemented by smaller antennas located at the bow and stern of the UKR-RL container. The mentioned radar allows to detect and track ground, surface and air targets. In addition, it has the G/MMTI function, i.e. the ability to determine the movement of targets. The UKR-RL container is placed on the front fuselage central pylon.