Description of the radar set, tactical-technical characteristics
Bild 1: SPS-55 (USS Samuel B. Roberts)
|frequency:||9.05 − 10 GHz
|5.45 − 5.825 GHz|
|pulse repetition time (PRT):|
|pulse repetition frequency (PRF):||750 pps||2250 pps|
|pulsewidth (τ):||1 μsec||0.12 μsec|
|peak power:||130 kW|
|instrumented range:||190 km||60 km|
|range resolution:||200 m||23 m|
|accuracy:||43 m||27 m|
|hits per scan:|
|antenna rotation:||16 rpm|
The AN/SPS-55 was designed to be a solid-state replacement for the AN/SPS-10 surface search radar. It incorporates a low-noise, image-reject mixer and features two slotted array antennas mounted back-to-back with an absolute gain of 31 dB at midband. One antenna is circularly polarized and the other is linear-horizontally polarized. Each antenna forms a fan beam that is narrow in the azimuth plane (1.4 degrees) and moderately broad in the elevation plane (20 degrees).
Over 200 radar sets have been produced for worldwide use.