The P-18 or 1RL131 Terek is a 2D VHF radar developed and operated by the former Soviet Union.
P-18 radar in Germany with Parol IFF
P-18 receiver with digital MTI (top left)
P-18 radar in Hungary
The P-12 "Yenisei" was an early VHF radar developed and operated by the former Soviet Union.
P-12 "Spoon Rest A" operating in Somalia
P-12 radar indicators, E-scope left and plan position indicator right
Serbian P-12M modernized radar