Raymarine RD418HD Hi-Def Digital Radar Dome w/10M Cable

Description

The Raymarine RD418HD Hi-Def Digital Radar Dome with 10 m Cable is an 18-inch, 4 kW HD Digital magnetron radar radome for compatible Raymarine multifunction displays. It combines a compact enclosed scanner, high-definition digital target processing, and a supplied 10 m Digital Radar cable for Raymarine SeaTalkhs or RayNet radar-network installations. The radar provides a manufacturer-rated maximum instrumented range of 48 NM; practical target detection depends on mounting height, target size, weather, sea state, radar settings, and installation quality.

The RD418HD uses conventional pulsed magnetron radar technology rather than solid-state pulse compression or Doppler processing. It offers a 4.9-degree horizontal beamwidth, 24 RPM rotation, 256-color target display, scan averaging, and Bird Mode when supported by the connected Raymarine display. A compatible Raymarine MFD, heading source, and GPS position source are required for functions such as MARPA target tracking and radar overlay.

Key Specifications

• Eighteen-inch HD Digital magnetron marine radar radome with supplied 10 m Digital Radar cable.
• Provides 4 kW peak transmit power and a maximum instrumented range of up to 48 NM.
• Uses a 4.9-degree horizontal beamwidth and 25-degree vertical beamwidth.
• Operates at 24 RPM and uses conventional pulsed magnetron radar technology.
• Supports 256-color target presentation, scan averaging, Bird Mode, and compatible MARPA functions.
• Requires a compatible Raymarine MFD and SeaTalkhs or RayNet Ethernet connection for radar video and control.
• Operates from 12V or 24V DC, uses approximately 40W transmitting and 20W in standby, and weighs approximately 9.5 kg.
• Uses an IPX6-rated radome housing for appropriate marine exposure.

Radar Integration

The RD418HD requires a compatible Raymarine multifunction display for radar operation. Radar video and scanner control use the supplied Digital Radar cable with the required SeaTalkhs or RayNet Ethernet connection. SeaTalkng or NMEA 2000 can supply compatible GPS, heading, AIS, autopilot, and sensor information, but it does not carry radar video.

MARPA target tracking and radar overlay require compatible heading and position data. Bird Mode and scan averaging depend on supported display software and correct scanner configuration. Radar is a navigation aid and does not replace a proper lookout, safe speed, official charts, local notices, or collision-regulation compliance.

Installation Considerations

Mount the radome on a rigid level platform with a clear scanner rotation area and align it parallel to the waterline. Position it at a practical height above the waterline and clear of crew areas, masts, rigging, antennas, lights, exhaust, and other obstructions. Maintain manufacturer-specified personnel safe distance and compass-safe distance. Route the supplied 10 m cable away from heat, chafe, bilge water, high-current wiring, and moving equipment. Radar installation and commissioning should be completed by a qualified marine-electronics technician.

Warranty and Saltwater Care

Raymarine warranty coverage varies by region, distributor, proof of purchase, product registration, installation method, and intended use. In supported regions, online registration can extend the standard warranty to three years; confirm applicable local terms, exclusions, and registration requirements before purchase.

The radome is designed for marine exposure and has IPX6 ingress protection, but this does not guarantee immunity from saltwater corrosion. Rinse salt deposits with fresh water where appropriate, avoid high-pressure water at the cable gland and scanner seal, inspect mounting hardware, cable connectors, fasteners, and the radar platform regularly, and use compatible marine-grade hardware plus approved isolation methods to reduce galvanic-corrosion risk.

Before Ordering

Confirm compatible Raymarine MFD support, SeaTalkhs or RayNet Ethernet connection, suitability of the supplied 10 m cable route, 12V or 24V supply, radar-mount strength, clear 18-inch scanner rotation area, mounting height, personnel and compass-safe-distance requirements, heading and GPS source for MARPA or radar overlay, optional AIS integration, and qualified installation requirements before purchase.