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AN/TPY-4

Description of the radar set, tactical-technical characteristics

Figure 1: AN/TPY-4

Figure 1: AN/TPY-4

Specifications
frequency: 1 215 … 1 400 MHz
(L-band)
pulse repetition time (PRT):
pulse repetition frequency (PRF):
pulsewidth (τ):
receiving time:
dead time:
peak power:
average power:
instrumented range: 300 NM (≙ 556 km)
range resolution:
accuracy:
beamwidth:
hits per scan:
antenna rotation: 6 rpm
MTBCF:
MTTR:

AN/TPY-4

AN/TPY-4 is an operating in the L-band (IEEE designation) or in the D band (NATO designation) three-dimensionally measuring active electronically scanned array (AESA) radar that is capable of tracking satellites, detecting low-profile unmanned aerial systems (UAS), and conducting ballistic missile search and tracking. It was selected by the US Air Force to replace the AN/FPS-75 radar.

AN/TPY-4 uses digital beamforming and may rotate in 360 degrees or provides a stop/stare non-rotating mode with 90-degree coverage and a maximum detection range of 1 000 kilometers. The antenna includes 1 152 single radiators in gallium nitride (GaN) technology. AN/TPY-4 can detect and track targets flying at 30 kilometers of altitude as well as surface targets at −6 degrees supporting ground-based maritime surveillance. It can track up to 90 degrees in elevation (no cone of silence) to support a tactical ballistic missile mission.

The radar is available in both fixed- and highly-mobile variants and is transportable via C-130, C-17, truck, rail, or helicopter.

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