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Description of the radar set, tactical-technical characteristics

Figure 1: AN/SPS-10

frequency: 5 450 … 5 825 MHz
pulse repetition time (PRT):
pulse repetition frequency (PRF): 625 … 650 Hz
pulsewidth (τ): 0.25 µs (1.3 µs)
receiving time:
dead time:
peak power: 190 kW (280 kW)
average power:
instrumented range:
range resolution: 50 yds (275 yds)
≙ 46 m (≙ 250 m)
beamwidth: 1.5 degrees
hits per scan:
antenna rotation: 15 rpm


AN/SPS-10 was a medium range, C-band surface search radar. It was used for the detection, ranging and tracking of surface contacts and to a limited extent, air contacts as well. Two dipoles for the attached IFF interrogator (AN/UPX-27) are located left and right of the feed horn. The original SPS-10 emitted 190 or 285 kW pulses. The next three versions used a more powerful 500 kW transmitter. SPS-10E/F versions offer a broader beamwidth of 1.9° · 16°.

This radar was retired from service at the end of 1998. The AN/SPS 10B was replaced by the AN/SPS-502 in some ships and kept the same antenna.

Picture gallery of AN/SPS-10

Figure 2: AN/SPS-37 radar mounted above the AN/SPS-10 radar aboard the docked Charles F. Adams class guided missile destroyer USS ROBISION (DDG-12), 7/1/1982

Figure 3: AN/SPS-10 radar antenna atop the foremast of the Bolster class rescue and salvage ship USS RECOVERY (ARS 43), 5/31/1985