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AN/SPS-37

Description of the radar set, tactical-technical characteristics

Figure 1: Bedspring Antenna AN/SPS-37 with the additional beacon antenna AS-1065/UPX

Figure 1: Bedspring Antenna AN/SPS-37 with the additional beacon antenna AS-1065/UPX

Specifications
frequency: 215 … 225 MHz
(VHF-Band)
pulse repetition time (PRT):
pulse repetition frequency (PRF): 290 … 300 Hz
pulsewidth (τ):
receive time:
dead time:
peak power: 250 kW
average power:
instrumented range: 200 NM (≙ 370 km)
range resolution:
accuracy:
beamwidth: 19°
hits per scan:
antenna rotation: 7,5 or 15 min⁻¹
MTBCF:
MTTR:

AN/SPS-37

The AN/SPS-37 was a naval long-range surveillance radar operating in the VHF band.

It was the direct successor of the AN/SPS-29 and used the same antenna of type AS-943/SPS-29, but equipped with a different IFF antenna (AS-1065/UPX), which was mounted above the common reflector. The AN/SPS-37 got a longer range despite the reduced transmission power of one third because it used a longer transmission pulse and the advantages of pulse compression.

The radar was built in the late 1950s. It was modernized in 1961 to the AN/SPS-37A and used the much larger antenna AS-1092/SP. After further modernization especially in the field of ECCM, it was renamed to AN/SPS-43.