AIR SW-Area Okinoerabujima

27°25'58"N 128°42'21"E Okinoerabujima Island is being used as a Forward Ops Base in emergencies and crises

Note: at grid 27° 22' 8" N 128° 34' 1" E is the location of an FPS-3 fixed Phased-array radar.
The J/FPS-3 air defence radar is a 3-D phased-array radar project, which is the main air defence/interceptor control radar of the Japanese Base Air Defence Ground Environment (BADGE) air defence system.
Each J/FPS-3 has a longrange antenna, shortrange antenna, false signal emitter, signal processing unit and an underground control system.
Flexible detection and tracking is provided through random access beam steering.
Resistance to electronic countermeasures is achieved via pulse compression, 2 wideband frequencies, low-antenna sidelobes and adaptive sidelobe cancellation.
Communication between the radar's antenna and control system is by means of optical cable.

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