Detection of low-altitude targets The Soviet P-19 surveillance radar was optimised for the detection of targets flying at a low altitude. The system can be deployed quickly: the antennae and the electronic cabin are mounted on two separate trucks. NATO reporting name: Flat Face B. Known under different names The model was introduced by the Soviet Union as the modified variant of the P-15 radar. It was mostly used together with the NEVA missile system. The radar was called Renata in Poland and Duna in the GDR. It is still in use in several countries. Operation in Hungary The Hungarian People’s Army brought the P-19s into service in 1973 and continued to use them until 1997. In total 21 of these radar systems served to defend the airspace of Hungary over the years.