Garmin GMR Fantom 18x Radar White 50 Watt 18" Dome with 15m Cables

The Garmin GMR Fantom 18x Radar White 50 Watt 18" Dome with 15m Cables is purpose-built for serious recreational and professional mariners who demand reliable, all-weather target detection and navigation awareness. If you spend significant time offshore or in coastal waters—whether fishing, cruising, or commercial operations—this open-array radar system delivers the situational awareness that keeps you safe and operational when visibility is compromised by fog, rain, or darkness. The 18-inch dome antenna and 50-watt transmitter strike the proven balance between detection range and power consumption that veteran boaters trust.

The GMR Fantom 18x uses solid-state technology and Garmin's refined signal processing to render clear, detailed radar imagery at distances that matter in open water. The 18-inch rotating antenna broadcasts at 50 watts, a proven power level that cuts through precipitation clutter and sea return without excessive battery or alternator draw—critical on boats where electrical budgets are finite. The included 15-meter cable harness simplifies installation by accommodating various mounting configurations, from flying-bridge installations on larger vessels to hardtop mounts on center consoles. Its white radome finish resists UV degradation and blends with modern boat aesthetics while protecting the antenna from spray and wind-induced vibration.

This radar works best when paired with a compatible Garmin marine GPS chartplotter or MFD that supports GMR networking, allowing real-time target tracking and integration with your navigation and fishing applications. Experienced captains appreciate the Fantom series for its straightforward calibration, low maintenance footprint, and seamless compatibility with existing Garmin ecosystems—whether you're upgrading an older unit or building out a modern glass bridge. The 34-pound antenna weight is manageable for typical hardtop or mast installations, and the 15m cable length accommodates most single and twin-engine layouts without requiring splicing or extension. Warranty and support from Garmin ensure you have backing for years of reliable operation in demanding saltwater and freshwater environments.