ONWA Open-Array Marine Radar Antenna (6kW / 12.5kW / 25kW)

Description

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“@type”: “Product”,
“@id”: “https://seanav.org/product/onwa-open-array-marine-radar-antenna/#product”,
“name”: “ONWA Open-Array Marine Radar Antenna (6kW / 12.5kW / 25kW)”,
“url”: “https://seanav.org/product/onwa-open-array-marine-radar-antenna/”,
“sku”: “ONWA-OPENARRAY-RADAR”,
“mpn”: “ONWA-OPENARRAY-RADAR”,
“image”: “https://seanav.org/wp-content/uploads/2026/11/onwa/onwa-open-array-marine-radar-antenna.webp”,
“description”: “The ONWA Open-Array Marine Radar Series delivers commercial-grade X-Band surveillance available in 6 kW, 12.5 kW, and 25 kW transmitter outputs with 4-foot and 6-foot precision-slotted waveguide antennas. Delivering extended detection ranges up to 96 nautical miles, narrow 1.2u00b0 horizontal beamwidth, and automatic target acquisition (TT/ARPA), it is the primary radar choice for commercial fishing vessels, offshore supply boats, and ocean-going merchant ships. Fully compatible with electronic chart overlay on ONWA KM & K-Astral consoles. Distributed, certified, and supported by Seanav Marine, Dubai Maritime City.”,
“brand”: {
“@type”: “Brand”,
“name”: “Onwa Marine”,
“url”: “https://www.onwamarine.com”
},
“manufacturer”: {
“@type”: “Organization”,
“name”: “ONWA Marine Electronics Co., Ltd.”
},
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“@type”: “Offer”,
“url”: “https://seanav.org/product/onwa-open-array-marine-radar-antenna/”,
“priceCurrency”: “AED”,
“price”: “10826.5”,
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“seller”: {
“@type”: “Organization”,
“name”: “Seanav Marine”,
“url”: “https://seanav.org”
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“mainEntity”: [
{
“@type”: “Question”,
“name”: “What transmitter power ratings are available in the ONWA Open Array Radar series?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The series is available in three power configurations: 6 kW (KRA-3004), 12.5 kW (KRA-4004), and 25 kW high-power commercial scanner.”
}
},
{
“@type”: “Question”,
“name”: “What antenna lengths are available and how do they affect beamwidth?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The system offers a 4-foot (1.2m) array with a 1.8u00b0 horizontal beamwidth, and a 6-foot (1.8m) array with an ultra-narrow 1.2u00b0 horizontal beamwidth, providing pinpoint angular resolution and long-range detection.”
}
},
{
“@type”: “Question”,
“name”: “Can ONWA Open Array Radar echoes be overlaid on navigation charts?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Yes. When paired with an ONWA KM series or K-Astral MFD and an accurate heading sensor (such as the ONWA KA-GC9A or KA-SC90), radar echoes overlay precisely onto C-MAP, Navionics, and K-Chart vector maps.”
}
},
{
“@type”: “Question”,
“name”: “What is the rotation speed of the open-array gearbox?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The heavy-duty gearbox operates at 24 RPM standard mode, and automatically shifts to 48 RPM high-speed rotation on short ranges for rapid collision tracking.”
}
},
{
“@type”: “Question”,
“name”: “Does the system support Target Tracking (TT / ARPA)?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “Yes. The radar processor tracks up to 50 active targets simultaneously, calculating CPA (Closest Point of Approach), TCPA (Time to CPA), true speed, and heading vectors.”
}
},
{
“@type”: “Question”,
“name”: “What voltage supply is required for installation?”,
“acceptedAnswer”: {
“@type”: “Answer”,
“text”: “The open-array pedestal operates on standard vessel DC power (12V / 24V / 32V DC) and features built-in soft-start motor circuitry to prevent current spikes on the ship’s mains.”
}
}
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