Garmin GMR™ 18 HD3 – 18″ High-Definition Radome Radar (010-02843-00)

The Garmin GMR™ 18 HD3 is a powerful, compact 18-inch marine radar designed to deliver superior high-definition imaging and exceptional clarity at both close and long ranges. Engineered for professional and recreational mariners alike, this robust radar system enhances awareness, safety, and navigation on the water.

Featuring High-Resolution Target Separation, improved MARPA tracking, and intuitive operation when paired with Garmin chartplotters, the GMR 18 HD3 ensures confidence in all weather conditions and during low visibility.

✅ High-Definition Radar Imaging – Provides clearer target definition and improved separation in close-range environments.
✅ 18” Compact Radome – Sleek, low-profile design perfect for a variety of boat sizes.
✅ 4 kW Transmit Power – Strong, consistent radar signal with up to 36 nautical mile range.
✅ Dual Range Support – View close and distant targets simultaneously (with compatible chartplotter).
✅ Auto Bird Gain Mode – Detects flocks of birds to help identify potential fishing areas.
✅ Echo Trails & MARPA Tracking – Track up to 10 targets to enhance situational awareness.
✅ Low Power Consumption – Energy-efficient operation ideal for long voyages.
✅ Easy Integration – Seamless pairing with Garmin marine chartplotters via the Garmin Marine Network.

Whether you’re navigating busy coastal waters or heading offshore, this low-profile radome provides the performance and reliability Garmin marine electronics are known for.

• Model Number: 010-02843-00

• Dome Size: 18 inches (457 mm)

• Power Output: 4 kW

• Maximum Range: Up to 36 nautical miles

• Rotation Speed: 24 RPM

• Power Consumption: Typically 30 W

• Voltage Range: 10.5 to 35 VDC

• Weight: Approx. 7.7 kg

• Water Rating: IPX6 (heavy spray and rain)

Garmin is a global leader in marine navigation and radar technology, known for their innovation, precision engineering, and robust product range. Trusted by boaters worldwide, Garmin delivers high-performance systems that enhance navigation, safety, and overall boating experience.