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AR-325 Commander

Description of the radar set, tactical-technical characteristics

Figure 1: AR-325 Commander

Figure 1: AR-325 Commander

frequency: 2 700 … 3 100 MHz
(S band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 270 … 1 400 Hz
pulsewidth (τ): max. 200 µs
receiving time:
dead time:
peak power: 135 kW
average power: 7.5 kW
instrumented range: 250 NM (≙ 470 km)
range resolution:
beamwidth: 1.4°
hits per scan:
antenna rotation:

AR-325 Commander

AR-325 Commander is operating in the S band (IEEE designation) or in the E/F band (NATO designation) (IEEE designation) or in the E/F band (NATO designation) long range 3-D air surveillance radar. The AR-325 Commander is the founder member of a family of radars, satisfying a range of operational long-range air defence requirements. It is smaller than the AR-320 in order to increase mobility. This includes the need for only one shelter in most cases, compared with an average of three for the AR-320.

AR-325 Commander uses an ultra-low sidelobe planar array antenna that has a very narrow vertical beamwidth of 1.5 degrees and an azimuth beamwidth of 1.4 degrees. It is a frequency scanned phased array. The AR-325 console has been developed from the Watchman display.

AR-326 Commander

The AR-326 Commander is a derivative of the AR-325 with enhanced electronic counter-countermeasures facilities. These improvements are claimed to make the AR-326 radar a NATO Class 1 system.

AR-327 Commander

The AR-327 Commander uses a traveling wave tube to achieve frequency diversity gain. Due to the principle of the frequency scanning array, however, both sub-frequencies have a slightly different side and elevation angle. It is a predesessor of AR-327 Commander SL.

AR-328 Commander

The AR-328 Commander is a tactically mobile NATO Class 1 radar.