96L6E “Cheese Board”

The 96L6E “Cheese Board” is a C-band 3D early-warning and acquisition radar, designed to replace the 36D6 “Tin Shield B” and 76N6 “Clam Shell” radars. It operates with SA-10 “Grumble” (S-300) and SA-21 “Growler” (S-400) theater defense missile systems. The radar features a phased array antenna with 96 radiating rows, utilizing mechanical beamsteering in azimuth and electronic beamsteering in elevation, and employs frequency hopping for enhanced jam resistance and clutter rejection. It measures range, azimuth, and elevation, automatically tracking up to 100 targets and classifying them as aircraft, helicopters, unmanned aerial vehicles (UAVs), or missiles. The system offers two primary operational modes: a low-altitude mode (mainlobe elevation -3° to +1.5°, 5 rpm antenna rotation) providing up to 70 dB subclutter visibility, and an all-altitude mode (mainlobe elevation -1.5° to +20°, 10 rpm antenna rotation), with a third mode for sector search. The 96L6E has an instrumented range of 5 to 300 km, requires three operators, and can be set up in under 5 minutes after relocation.

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