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ONWA Radome Marine Radar Antenna

Enhance Navigation with ONWA Open-array Marine Radar Antenna
  • 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

  •  

    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)
    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)

    Beam Width

    Horizontal 4°
    Vertical 25°

    Horizontal 5°
    Vertical 25°

    Sidelobe

    Within ± 20° off mainlobe; less than -18 dB
    Outside ± 20° off mainlobe; less than -23 dB

    Within ± 20° off mainlobe; less than -18 dB
    Outside ± 20° off mainlobe; less than -23 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)
    0.3µ 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

    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 0.8 µ S: 3 MHz

    Tx pulselength 0.3 µ S and 0.08 µ S: 25 MHz
    Tx pulselength 0.8 µ S: 3 MHz

    Duplexer

    Circulator with Diode Limiter

    Circulator with Diode Limiter

    WIFI Module (For KRA-1007W ONLY)

    Standard: IEEE802.11n, IEEE802.11g, IEEE802.11b
    Channels: 1~11
    Frequency Range: 2.4-2.4835G
    Transmit Power:15-20dBm

     

    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

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