New
ONWA Open-array Marine Radar Antenna
Unparalleled Performance
Superior Detection Capabilities
Each model in the ONWA Open Array Radar series delivers superior detection capabilities, allowing you to accurately identify and track targets at various ranges. Whether navigating congested waterways or open seas, these radars provide the clarity and detail needed to make informed decisions.
High Resolution
X-Band radar offers higher resolution compared to other frequency bands, allowing for detailed imagery and precise detection of small objects or vessels. This makes it particularly useful in navigation where accuracy is crucial.
Target Tracking
The radar system can simultaneously track multiple targets, providing detailed information on their position, speed, and direction. This feature is essential for avoiding collisions and maintaining a safe navigation path.
The KM Series allows radar data to be overlaid on nautical charts, combining visual navigation aids with real-time radar information. This feature enhances situational awareness by showing radar echoes on the chart, making it easier to correlate radar returns with charted objects.
Why Choose ONWA Open-Array Radar?
Superior Detection Capabilities With its extended range and high-resolution imaging, the Open-Array Radar offers unmatched detection and tracking capabilities, providing you with a comprehensive understanding of your maritime environment.
Ideal for Larger Vessels The extensive coverage and advanced features make it the perfect choice for larger vessels, including commercial ships, fishing boats, and yachts, that require reliable and detailed radar performance.
Durability and Reliability The Open-Array Radar is built to handle the toughest marine conditions, ensuring that you can rely on it for consistent and dependable performance during extended voyages.
Model Overview
OPTIONAL RADAR DISPLAY
KRA-4001 (6KW)
Read More
Power: 6KW
- Antenna rotation speed: 24rpm
KRA-3002 (12.5KW)
Read More
Power: 12.5KW
- Antenna rotation speed: 24rpm
KRA-5001 (25KW)
Read More
Power: 25KW
- Antenna rotation speed: 24rpm
KRA-3002/KRA-4001 | |
Antenna Radiator | |
Radiator | Slotted waveguide Array |
Radiator Length | KRA-4001: 120 cm |
Antenna Rotation Speed | 24RPM |
Beam Width | Horizontal: |
Sidelobe | Within ± 20° off mainlobe; less than -24 dB |
Polarization | Horizontal |
Wind Resistane | KRA-4001: Relative Wind Speed 100 knots (51.5 m/s) |
Transceiver Module (contained in Radome) |
|
Transmitting Tube | KRA-3002: MSF1425 |
Frequency | 9410 ± 30MHz (X-band) |
Pulse Length PPR | 0.08 µ S/2100 Hz(0.125, 0.25, 0.5, 0.75, 1.5 nm) |
Warm Up time | 1:30 minutes |
Peak Output Power | KRA-3002: 12.5 kW nominal |
Modulator | FET Switching Method |
IF | 60MHz |
Tuning | Automatic or Manual |
Receiver front end | MIC (Microwave IC) |
Bandwidth | Tx pulselength 0.3 µ S and 0.08 µ S: 25 MHz |
Duplexer | Circulator with Diode Limiter |
Environment |
|
Temperature | Antenna unit: -25 to +70°C |
Humidity | Relative humidity 93% or less at 40°C |
Power Supply | ±12VDC external regulated power supply |
