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Description of the radar set, tactical-technical characteristics

Figure 1: P-14 “Tall King A”

frequency: 150 to 170 MHz
pulse repetition time (PRT): 5 or 10 milliseconds
pulse repetition frequency (PRF): 100 or 200 Hz
pulsewidth (τ): 10 µs
receiving time:
dead time:
peak power: 700 to 900 kW
average power: 800 watts
instrumented range: 320 NM
range resolution: 0.8 nautical mile
beamwidth: 4°20' … 8°
hits per scan: >15
antenna rotation: 10 to 25 seconds (0 … 4 … 6 rpm.)


The P-14 radar (Russian name: 1RL113 “Lena”; Cyrillic: 1РЛ113 «Лена»; NATO designation: “Tall King A”) was built starting in 1959. With the dimensions of 32 m · 11 m, this parabolic antenna took a special appearance in the VHF range. The antenna rotates up to a wind speed of 30 m/s. The technical data of the radar station were approximately the same as those of the P-12, but the transmitter was more powerful (Pi ≥ 700 kW). The maximum displayed range was 600 km, while range resolution deteriorated due to screen resolution.

A P-14 had two main antennas. One of them was set up stationary as the actively used antenna. An additional antenna was ready for deployment put on 36 URAL-375D type vehicles. The setup time for the antenna was about 50 hours.

The last radar was delivered in 1979. A total of 731 stations were built, 24 of which were exported.