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Description of the radar set, tactical-technical characteristics

Figure 1: AN/APS-143(V)3

Figure 1: AN/APS-143(V)3

frequency: 9 250 … 9 700 MHz
pulse repetition time (PRT):
pulse repetition frequency (PRF): 2 491, 1 513, 750 Hz
(400 - 800 Hz in ISAR mode)
pulsewidth (τ): 10, 23.4, or 40 μs
receiving time:
dead time:
peak power: 8 kW
average power:
instrumented range: 256 NM (≙ 475 km)
range resolution: 50 m
hits per scan:
antenna rotation:
MTBCF: 800 hrs


AN/APS-143(V) is an X-band maritime surveillance and tracking radar designed for installation in a variety of fixed-wing aircraft and helicopters. It is known as OceanEye. The system uses a traveling wave tube (TWT) transmitter, frequency agility and pulse compression techniques, and consists of three units: an antenna, transceiver and signal processor. The antenna system is pitch-and-roll compensated.

Control of the radar may be carried out by a dedicated control panel, or by a central universal keyset via a MIL-STD-1553B databus. Features include track-while-scan, air search mode with moving target indication customised for the individual platform, integrated electronic support measures interface and an integrated identification friend-or-foe system interface.

The APS-143(V)3 has small-target detection capability and is smaller in size. This variant features a track-while-scan function and a MIL-STD-1553B databus output to a central tactical navigation computer.

Picture gallery of AN/APS-143

Figure 2: AN/APS-143(V)