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AN/SPS-39

Description of the radar set, tactical-technical characteristics Описание; Основные тактико-технические характеристики (Базы данных)

Figure 1: AN/SPS-39 radar aboard the U.S. Navy USS Atlanta, 1964.

Figure 1: AN/SPS-39 radar aboard the U.S. Navy USS Atlanta, 1964.

Specifications
frequency: 2 910 … 3 100 MHz
(E/F-Band)
pulse repetition time (PRT):  
pulse repetition frequency (PRF): 1 850 Hz or 925 Hz
pulsewidth (τ): 2 or 4 µs
receive time:  
dead time:  
peak power: 1 MW
average power:  
instrumented range: 100 or 160 NM
(≙ 185 or 296 km)
range resolution:  
accuracy:  
beamwidth: 1.1° × 2.25°
hits per scan:  
antenna rotation: 6 or 15 rpm
MTBCF:  
MTTR:  

AN/SPS-39

The AN/SPS-39 was an E/F-band shipborne 3D air search radar used a parabolic-cylinder reflector antenna fed by a line source to produce the change in phase with frequency necessary to scan its beam electronically in elevation.

The first prototype was presented in January 1960. Upgraded with a planar array and an electronic pitch-roll stabilization instead of the mechanical stabilization of the turntable, this radar evolved into the AN/SPS-52.