Comprehensive Awareness
Energy Efficiency
The ONWA Radome radar is designed with energy efficiency in mind, consuming significantly less power than traditional magnetron-based open array scanners. This reduced power consumption is particularly beneficial for long voyages, helping to conserve energy and extend the operational range of your vessel
Robust and Reliable Design
The ONWA Radome are built to endure the harshest marine environments. Their sturdy construction ensures durability and long-lasting performance, while their weather-resistant housings protect the sensitive internal components from the elements.
Easy Installation
Designed for easy installation, the ONWA HD Radome radar can be seamlessly integrated with your existing navigation systems.
It can be connected to our dedicated radar display and our KM series multifunction chart plotters, providing versatile and comprehensive navigation support.
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.
Advanced Features
- Gain Control: Built in Sea and Rain clutter algorithm for the best possible image in varying conditions.
- Dual Range Scanning: Simultaneously monitor short and long-range targets, providing a comprehensive view of your surroundings.
- Weather Overlay: Integrates weather data directly onto the radar display, helping you anticipate and navigate through adverse weather conditions.
- ARPA Target Tracking: Utilize Automatic Radar Plotting Aid (ARPA) to track up to 40 targets, offering detailed information on their speed, course, and closest point of approach (CPA).
OPTIONAL RADAR DISPLAY
KRA-1007_N
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Power: 4KW
- Range: up to 36nm
KRA-1009_N
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Power: 4KW
- RPM: Short range: 48 RPM; Medium range: 36 RPM; Long range: 24 RPM
| KRA-1007_N | KRA-1009_N | |
Antenna Radiator |
| |
Radiator | Slotted waveguide Array | Slotted waveguide Array |
Radiator Length | 55 cm | 46 cm |
Antenna Rotation Speed | 24 RPM (±2) | Long Range (3~36nm): 24 RPM (±2) |
Wind Resistance | Relative wind speed 100 knots(51.5 m/s) | Relative wind speed 100 knots(51.5 m/s) |
Beam Width | Horizontal 4° | Horizontal 5° |
Sidelobe | Within ± 20° off mainlobe; less than -18 dB | Within ± 20° off mainlobe; less than -18 dB |
Polarization | Horizontal | Horizontal |
Transceiver Module (contained in Radome) | ||
Transmitting Tube | MSF1421B or MAF1421B | MSF1421B or MAF1421B |
Frequency | 9410 ± 30MHz (X-band) | 9410 ± 30MHz (X-band) |
Pulse Length PPR | 0.08 µ S/2100 Hz(0.125, 0.25, 0.5, 0.75, 1.5 nm) | 0.08 µ S/2100 Hz(0.125, 0.25, 0.5, 0.75, 1.5 nm) |
Warm Up time | 1:30 minutes | 1:30 minutes |
Peak Output Power | 4 kW nominal | 4 kW nominal |
Modulator | FET Switching Method | FET Switching Method |
IF | 60MHz | 60MHz |
Tuning | Automatic or Manual | Automatic or Manual |
Receiver front end | MIC (Microwave IC) | MIC (Microwave IC) |
Bandwidth | Tx pulselength 0.3 µ S and 0.08 µ S: 25 MHz | Tx pulselength 0.3 µ S and 0.08 µ S: 25 MHz |
Duplexer | Circulator with Diode Limiter | Circulator with Diode Limiter |
WIFI Module (For KRA-1007W ONLY) | Standard: IEEE802.11n, IEEE802.11g, IEEE802.11b | |
Environment | ||
Temperature | Antenna unit: -25 to +70°C | Antenna unit: -25 to +70°C |
Humidity | Relative humidity 93% or less at 40°C | Relative humidity 93% or less at 40°C |
Power Supply | 10.5VDC to 40.0 VDC Built-in Power-Supply | 10.5VDC to 40.0 VDC Built-in Power-Supply |