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Antena de radar marítima ONWA Radome

4KW Radome Radars: KRA-1007(N/W) / KRA-1009_N
ONWA Rademo Marine Radar Antenna

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

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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.

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.

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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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  • Power: 4KW

  • Range: up to 36nm
  • Power: 4KW

  • RPM: Short range: 48 RPM; Medium range: 36 RPM; Long range: 24 RPM

 

KRA-1007_NKRA-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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