See more of what's out there and gain extra peace of mind with the Garmin® GMR™ 18 xHD3 Radome Dome Radar. Combining high-definition imaging with the latest platform technology, this robust 4kW magnetron radar offers new levels of confidence, clarity and performance in a compact 18" unit for boaters who want to venture out on the water. Scan averaging, a first for Garmin magnetron radar, results in reduced sea clutter and interference on the display. Plus, other advanced features include auto bird gain, improved target-size processing and more. Delivering crisp, high-resolution picture quality and up to a 48-nautical mile detection range, these radars easily connect to your compatible Garmin chartplotter or MFD through the Garmin Marine Network. View a historical echo trail of boats on the water, removing relative motion influence to help you quickly identify moving targets and potential collision threats. Rotation speeds up to 60 rpm improve the redraw rate for faster target updates. Set a safety zone and receive an alarm when an object enters the zone. Dual-radar support provides redundancy and allows each display unit to pull data from different sources. Variable range markers and electronic bearing lines allow rapid measurements of distance and bearing to vessels and land. Garmin GMR 18 xHD3 Radome Dome Radar includes 15m power cable, 15m network cable, and mounting hardware kit/template. 20"W x 9.8"L. Weight: 15.43 lbs.

4kW magnetron radar
Scan averaging reduces sea clutter and interference
Auto bird gain
Improved target-size processing
48-nautical mile detection range
Connects to your compatible Garmin chartplotter/MFD
View a historical echo trail of nearby boats
Dual-radar support provides redundancy