Garmin GMR24 xHD3 24" 4kW Radar Dome with 15m Cables

The Garmin GMR24 xHD3 24" 4kW Radar Dome with 15m Cables is the backbone of modern marine situational awareness, designed for serious boaters and commercial operators who demand target detection in challenging weather and sea conditions. After decades on the water, radar remains non-negotiable in fog, rain, and darkness—and the GMR24 xHD3 sets the standard for mid-range vessels seeking solid performance without the weight penalty of larger systems. This 24-inch radome delivers genuine 4-kilowatt transmission power, the sweet spot for recreational and light commercial applications where range and resolution matter equally.

The xHD3 architecture represents Garmin's third-generation high-definition radar technology, engineered to cut through sea clutter and rain interference with crystalline target clarity. The 24-inch rotating dome houses a solid-state magnetron radiating at 4kW peak power, translating to effective detection ranges beyond 40 nautical miles in ideal conditions and reliable pickup of other vessels and weather systems at practical working distances. The included 15-meter cables provide ample run length for typical hardtop and tower installations, allowing flexible mast or radar arch placement without costly custom fabrication. Lightweight composite construction keeps topside weight manageable—critical for stability in rough seas—while the sealed radome housing withstands salt spray, UV exposure, and decades of open-water service.

This radar dome integrates seamlessly with Garmin GPSMAP and MARINESTAR chartplotters, offering side-by-side radar and electronic charting that transforms collision avoidance and navigation in zero-visibility conditions. Commercial fishermen, ferry operators, and long-range cruisers benefit most from the GMR24 xHD3's balance of power, range, and reliability—it performs equally well in coastal piloting and offshore transits. Installation requires a 12/24-volt DC power supply and compatible Garmin display head; standard coaxial connections ensure straightforward integration into existing marine networks. For any operator serious about all-weather capability and target acquisition, this radar dome represents time-tested technology that has protected thousands of vessels.