ONWA Radome Marine Radar Antenna KRA-1007 & KRA-1009
- Product Description
- Specification
- In the Box
- Manuals & Firmware
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Comprehensive Awareness
The all-weather ONWA Radome keeps you aware of surrounding traffic, hazards, obstacles, and approaching weather. Navigate confidently in dense fog, rain, and low-visibility conditions. The Radome antenna perfectly blends compact size, lightweight design, and high performance. Choose the Radome antenna when space is limited or rigging restrictions apply. The HD Radome scanner offers reliable radar performance while consuming less power than magnetron-based open array scanners.
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 multi-functional chartplotters, providing versatile and comprehensive navigation support.
Radar Overlay on Charts
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
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KRA-1007_N
KRA-1009_N
Antenna Type Slotted waveguide Array Slotted waveguide Array Radiator Length 55 cm 46 cm Horizontal Beamwidth 4° 5° Vertical Beamwidth 25° 25° Sidelobe Within ± 20° off mainlobe; less than -18 dB
Outside ± 20° off mainlobe; less than -23 dBWithin ± 20° off mainlobe; less than -18 dB
Outside ± 20° off mainlobe; less than -23 dBPolarization Horizontal Horizontal Antenna Rotation Speed 24 rpm (±2) Long Range (3~36nm): 24 rpm (±2)
Medium Range (1.5~ 3 nm): 36 rpm (±2)
Short Range (0.125~1.5 nm): 48 rpm (±2)Wind Resistance Relative wind speed 100 knots(51.5 m/s) Relative wind speed 100 knots(51.5 m/s) Transmitting Tube MSF1421B or MAF1421B MSF1421B or MAF1421B Frequency 9410 ± 30MHz (X-band) 9410 ± 30MHz (X-band) Peak Output Power 4 kW nominal 4 kW nominal Pulse Length & PPR 0.08 µ S/2100 Hz(0.125, 0.25, 0.5, 0.75, 1.5 nm)
0.3µ S/1200 Hz(1.5, 2, 3 nm)
0.8 µ S/600 Hz(3, 4, 6, 8, 12, 16, 24, 36 nm)0.08 µ S/2100 Hz(0.125, 0.25, 0.5, 0.75, 1.5 nm)
0.3µ S/1200 Hz(1.5, 2, 3 nm)
0.8 µ S/600 Hz(3, 4, 6, 8, 12, 16, 24, 36 nm)Warm Up time 1:30 minutes 1:30 minutes Modulator FET Switching Method FET Switching Method I.F. 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 0.8 µ S: 3 MHzTx pulselength 0.3 µ S and 0.08 µ S: 25 MHz
Tx pulselength 0.8 µ S: 3 MHzDuplexer Circulator with Diode Limiter Circulator with Diode Limiter Power Supply 10.5VDC to 40.0 VDC Built-in Power-Supply 10.5 VDC to 40.0 VDC Built-in Power-Supply Operating 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 Compass Safe Distance (Standard) 130 cm 130 cm Compass Safe Distance (Steering) 95 cm 95 cm -
Model
KRA-1007_N
KRA-1009_N
Antenna Type Slotted waveguide Array Slotted waveguide Array Radiator Length 55 cm 46 cm Horizontal BeamWidth 4° 5° Vertical BeamWidth 25° 25° Sidelobe Within ± 20° off mainlobe; less than -18 dB
Outside ± 20° off mainlobe; less than -23 dBWithin ± 20° off mainlobe; less than -18 dB
Outside ± 20° off mainlobe; less than -23 dBPolarization Horizontal Horizontal Antenna Rotation Speed 24 rpm (±2) Long Range (3~36nm): 24 rpm (±2)
Medium Range (1.5~ 3 nm): 36 rpm (±2)
Short Range (0.125~1.5 nm): 48 rpm (±2)Wind Resistance Relative wind speed 100 knots(51.5 m/s) Relative wind speed 100 knots(51.5 m/s) Transmitting Tube MSF1421B or MAF1421B MSF1421B or MAF1421B Frequency 9410 ± 30MHz (X-band) 9410 ± 30MHz (X-band) Peak Output Power 4 kW nominal 4 kW nominal Pulse Length & PPR 0.08 µ S/2100 Hz(0.125, 0.25, 0.5, 0.75, 1.5 nm)
0.3µ S/1200 Hz(1.5, 2, 3 nm)
0.8 µ S/600 Hz(3, 4, 6, 8, 12, 16, 24, 36nm)0.08 µ S/2100 Hz(0.125, 0.25, 0.5, 0.75, 1.5 nm)
0.3µ S/1200 Hz(1.5, 2, 3 nm)
0.8 µ S/600 Hz(3, 4, 6, 8, 12, 16, 24, 36nm)Warm Up time 1:30 minutes 1:30 minutes Modulator FET Switching Method FET Switching Method I.F. 60 MHz 60 MHz 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 0.8 µ S: 3 MHzTx pulselength 0.3 µ S and 0.08 µ S: 25 MHz
Tx pulselength 0.8 µ S: 3 MHzDuplexer Circulator with Diode Limiter Circulator with Diode Limiter Power Supply 10.5VDC to 40.0 VDC Built-in Power-Supply 10.5VDC to 40.0 VDC Built-in Power-Supply Operating 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 Compass Safe Distance (Standard) 130 cm 130 cm Compass Safe Distance (Steering) 95 cm 95 cm
Compatible Devices
KP-1299 Series Chartplotters
12-inch chartplotters with build-in radar function and optional AIS and Fishfinder functions.
ONWA KM-8/12 Series Marine Chartplotter
8 and 12- inch Multi-function chartplotters with Radar Display
K-Astral Easy-to-use MFD Chartplotter
8″ and 12″ Full-featured MFD Chartplotter with Sensitive & Water-resistant Touchscreen and Traditional Keypad
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