C400 Series Radar

The C400 Series is a dedicated coastline and port security radar family designed to resolve the core challenge of maritime surveillance: distinguishing small, slow-moving threats — kayaks, rigid inflatable boats (RIBs), and semi-submersibles — against the constant clutter of breaking waves, spray, and heavy sea states. Blighter's patented Sea Clutter Filter processes the Doppler return to extract low-RCS targets that conventional navigation radars mask; the result is detection of a small wooden boat (RCS 1 m²) at 11 km and a rigid inflatable at 16 km, achieving fewer than one false alarm per day even in sea state 5 conditions.

Like all B400-family sensors, the C400 is an electronically scanned FMCW Doppler system with zero moving parts, operating in the Ku band at 15.7–17.2 GHz. A symmetric dual-beam e-scan array provides 0 knot minimum detectable radial velocity, allowing the radar to report a stationary or drifting vessel without a Doppler gate gap. Configurations of 90°, 180°, and 360° are available, making the system scalable from a single port entrance to an entire harbour basin or offshore platform 360° perimeter.

MIL-STD-810F qualification covers extreme temperatures, sand, salt-spray, and vibration, while IP66 marine-grade housing protects the electronics against the corrosive coastal environments found across the Gulf coastline, from the high-humidity Arabian Sea shore to the saline-saturated Arabian Gulf. At 40 W nominal power (standard transmitter) and a −32 °C to +65 °C operating range, the C400 runs continuously from shore power or a modest renewable supply. Integration with BlighterNexus software enables radar-camera fusion and multi-radar networking for comprehensive maritime domain awareness across large facilities or extended coastlines.