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ST-67

Description of the radar set, tactical-technical characteristics

Figure 1: ST-67 “Salyut”

Figure 1: ST-67 “Salyut”

Specifications
frequency: L-band
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ):
receiving time:
dead time:
peak power:
average power: 15 kW
instrumented range: 340 NM (≙ 630 km)
range resolution:
accuracy:
beamwidth:
hits per scan:
antenna rotation:
MTBCF:
MTTR:

ST-67

ST-67 “Salyut” (Russian designator: 5N69, Cyrillic: СТ-67, 5Н69, «Салют») is operating in the L-band long-range 3D air surveillance radar that was incorporated into the armament of the Soviet armed forces in the mid-1970s.

The antenna consisted of two large-area, single-curved parabolic reflectors offset 180° to achieve a high data renewal rate even at slow rotation speeds. The feed to the antennas used the principle of frequency-dependent phased array. A secondary radar of type NRZ-1P was integrated. The rotating part of the antenna weighed about 17 metric tons.

Because of the noise generated during rotation, the radar was nicknamed the “strategic fan”.