- Max Number of Targets: 180
- Detection Range: 65nm
The Acquisition Radar 76N6 (NATO-Designator “Clam Shell”) is an operating in X-band (IEEE designation) or in the I-band (NATO designation) low-altitude FMCW search and acquisition radar designed to detect and track approaching and receding low radar cross section targets, particularly cruise missiles. The system will detect targets at extremely low altitudes in ground clutter under intense ECM conditions. This system is described as fully automatic and provides target track information for the fire control system of the static SA-10A or mobile SA-10B Grumble area defence SAM. Approaching and receding target velocity, range and bearing are provided, with selectable 1 or 6 degree vertical beamwidths, and selectable beam polarization. It uses a split antenna arrangement with a large beak to prevent spillover from the transmitter. The doubly curved transmit and receive reflectors each measure 9.2 ft per side.