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AN/APS-124

Description of the radar set, tactical-technical characteristics

Figure 1: Sikorsky SH-60B “Seahawk”

Figure 1: Sikorsky SH-60B “Seahawk”

Specifications
frequency: X-band
pulse repetition time (PRT):
pulse repetition frequency (PRF): 470, 940, or 1880 Hz
pulsewidth (τ): 2, 1, or 0.5 s
receiving time:
dead time:
peak power: 350 kW
average power:
instrumented range: 160 NM (≙ 296 km)
range resolution:
accuracy:
beamwidth: 1.2°
hits per scan:
antenna rotation: up to 120 rpm
MTBCF:
MTTR:

AN/APS-124

AN/APS-124 is operating in the X-band airborne surveillance radar for maritime applications. The radar is fitted in the Sikorsky SH-60B “Seahawk” and Kaman YSH-2E “Seasprite” as part of the LAMPS Ⅲ shipboard surveillance system.

The antenna is mounted under the forward fuselage in a flat radome and provides 360° coverage. It is a planar array with the dimensions of 6 × 1 feet (≙ 183 × 31 cm). Radar images can be displayed in the helicopter while in flight as well as being data-linked to surface-ship displays. AN/APS-124 operates in three modes:

The APS-124 achieved initial operational capability in 1983.