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9S18

Description of the radar set, tactical-technical characteristics

Figure 1: 9S18

Figure 1: 9S18

Specifications
frequency: F-band
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ):
receiving time:
dead time:
peak power:
average power: 3.5 kW
instrumented range: 120 km
range resolution:
accuracy: 1000 m; 1°
beamwidth:
hits per scan:
antenna rotation: 3 … 12 rpm
MTBCF:
MTTR:

9S18

The 9S18 “Kupol” (also designated 1RL135, Cyrillic: 9С18 "Купол-М" or 1РЛ135; NATO designation: “Tube Arm”) is operating in the F-band fully coherent, mobile 3D target assignment radar for the 9K37 “Buk” («Бук», NATO designation: SA-11 “Gadfly”) air defense missile system. It uses a frequency-controlled phased array antenna in front of a single curved parabolic reflector.