Garmin GMR Fantom 18x Dome Radar
Best compact radar for boaters needing enhanced situational awareness and safety.
Navigate the waters with confidence using the Garmin GMR Fantom 18x Dome Radar. This high-performance radar offers superior target detection and reliability through its advanced solid-state technology. MotionScope™ technology clearly identifies moving targets with intuitive color-coding, enhancing your situational awareness. It delivers excellent performance at both close and long ranges, integrating seamlessly with compatible Garmin GPSMAP® chartplotters. Its compact 18-inch dome design ensures easy installation on a variety of vessels, making it a reliable choice for safe and efficient boating.
$1999.99
Owner Satisfaction
4.7
/ 5
Category Rank
8
/ 176
#8 in Marine Radar
Price vs Category Average
-26%
Below average
Radar Type
Dome Radar
/ Dome Radar
Who it's for
- Boaters navigating tight harbors or crowded waterways
- Captains prioritizing collision avoidance and situational awareness
- Vessel owners seeking low-maintenance, energy-efficient electronics
Who should skip it
- Skippers using legacy displays or non-Garmin navigation ecosystems
- Offshore cruisers requiring long-range weather and target detection
- Budget-conscious sailors looking for entry-level radar solutions
Performance breakdown
Target Detection
Solid-state technology provides exceptional clarity for identifying hazards in all conditions.
Situational Awareness
MotionScope color-coding makes tracking moving vessels intuitive and immediate.
Range Versatility
Handles close-quarters navigation and long-range weather tracking with impressive precision.
System Integration
Seamlessly syncs with Garmin chartplotters for a unified, responsive navigation experience.
Installation Ease
Compact dome footprint simplifies mounting on a wide variety of vessels.
Collision Avoidance
Advanced ARPA tracking provides reliable data for safer maneuvering in traffic.
Key Specs
Radar Type
Dome Radar
Antenna Diameter
24-inch
Transmission Technology
Solid State
Mount Type
Dome
Network Interface
Ethernet
Peak Power Output
50 W
Maximum Range
48 nm
Minimum Range
20 ft (6 m)
Features
- Superior target detection and reliability
- Identifies moving targets with color coding
- Excellent close and long-range performance
- Seamless integration with Garmin chartplotters
- Compact and easy to install dome design
- Enhanced situational awareness on the water
- Durable marine-grade construction
- ARPA target tracking for collision avoidance
What customers say
The Garmin GMR Fantom 18x Dome Radar earns high praise for its advanced situational awareness and reliability. Users consistently highlight the superior target separation provided by the solid-state technology and the convenience of instant-on operation, which is vital in unpredictable conditions. Garmin's MotionScope technology is a standout feature, clearly displaying moving targets with color coding to enhance safety when tracking squalls or other vessels. While the initial cost is significant, the consensus is that the low power consumption and robust performance justify the investment. For those already using Garmin electronics, integration is simple, making this unit a highly recommended safety and efficiency upgrade for serious mariners.
Know before you buy
MotionScope uses the Doppler effect to detect moving targets and color-codes them on your display. This allows you to instantly distinguish between stationary objects and moving vessels, significantly improving your situational awareness in busy waterways.
The GMR Fantom 18x is designed for seamless integration with most modern Garmin GPSMAP chartplotters via an Ethernet connection. We recommend checking your specific chartplotter model's compatibility list on the Garmin website to ensure full feature support.
Solid-state technology allows for near-instant startup times and lower power consumption compared to traditional magnetron radars. It also provides more consistent performance and reliability over time without the need for a high-voltage power supply.
The GMR Fantom 18x offers a versatile range, performing effectively from as close as 20 feet out to a maximum range of 48 nautical miles. This makes it suitable for both navigating tight harbors and monitoring distant weather or traffic.
Yes, its compact 18-inch dome design and relatively low weight of 12.5 lbs make it an excellent choice for a wide variety of vessels where space on the arch or mast is limited. Its IPX7 water rating also ensures it can withstand the harsh marine environment.
Yes, the radar supports ARPA (Automatic Radar Plotting Aid) target tracking. This feature helps you track multiple targets and calculate their course and speed, providing essential data to help you avoid potential collisions.
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$2000