The Garmin GMR18 HD3 is an 18-inch radar dome that provides high-definition imaging and dependable performance for mariners who rely on clear targets and reliable detection during every voyage.
-
Dome size & imaging: 18" magnetron dome delivers high-definition imaging with crisp target detail and reliable detection up to 36 nautical miles.
-
Power output: 4 kW output balances strong radar performance with efficient power use for longer voyages.
-
Dual radar support: Lets two compatible chartplotters pull data from different radar sources for redundancy and shared situational awareness.
-
Dynamic Auto Gain: Automatically adjusts sensitivity for optimal performance in varying conditions.
-
Dynamic Sea Filter: Reduces sea clutter to improve target readability in rough seas.
-
MARPA target tracking (heading sensor required): Monitor selected targets and assist with collision avoidance.
-
Radar overlay (heading sensor required): Display radar images over maps on compatible chartplotters for integrated navigation.
-
Quiet, reliable dome drive: Low-noise operation and reduced energy use for quiet offshore passages.
-
Garmin Marine Network connectivity: Easy networking with compatible chartplotters/MFDs for crisp, high-resolution imaging.
-
In-box contents: GMR 18 HD3 dome radar, power cable (15 m / 49.21 ft), network cables (2 × 15 m / 49.21 ft each), installation instructions.
-
Physical dimensions: 20" diameter × 9.8" high dome housing.
-
Compatibility: Garmin Marine Network with compatible chartplotters/MFDs.
With up to a 36 nautical mile range, dual data sources for redundancy, and built-in features that enhance readability and decision-making, the GMR18 HD3 provides a practical, capable radar solution for reliable situational awareness on every voyage. Its compact form, quiet operation, and seamless Garmin network integration make it a straightforward addition to existing chartplotter setups, delivering real-time radar imagery where you need it most.
| Dimensions |
20" Diameter, 9.8" High |
| Power output |
4kW |
