The Garmin GMR Fantom™ 18x Dome Radar (Part Number: 010-02584-10) is a high-performance, 50-watt solid-state radome engineered to deliver long-range target detection and rapid situational updates. Featuring MotionScope™ technology, the radar leverages the Doppler effect to detect moving targets and highlight them in high-contrast colors—instantly identifying potential collision risks, incoming weather, or flocking birds. Operating at up to 60 RPM rotation speeds, it provides ultra-fast refresh rates to ensure seamless tracking even on high-speed vessels. Housed in a compact, IPX7 waterproof 18-inch dome casing with low power consumption and instant-on capability, the Fantom 18x integrates natively with Garmin GPSMAP® chartplotters via the Garmin Marine Network, delivering exceptional target separation, dual-range overlay, and dynamic auto-gain features for coastal and offshore navigation.

In the Box

GMR Fantom 18x or 24x Dome Radar (depending on model selected)
Power cable (15 m/49.21 ft)
Network cable (15 m/49.21 ft)
Installation instructions
Mounting hardware kit and template

Technical Specification

General
Antenna Length	18x: 17″ (43.18 cm) 24x: 23″ (58.42 cm)
Rotation speed (RPM)	Up to 60 rpm, depending on settings
Dimension	18x: 20″ x 9.8″ (50.8 cm x 24.8 cm) 24x: 25.4″ x 9.8″ (64.5 cm x 24.9 cm)
Weight	18x: 14.0 lbs (6.4 kg) 24x: 17.4 lbs (7.9 kg)
Water rating	IPX7
Beam width	18x: 5.2° horizontal, 25° vertical 24x: 3.7° horizontal, 25° vertical
Maximum range	48 nm
Minimum range	6 meters
Radar type	Radome

Electrical Features
Power Input	10-32 V DC
Power Consumption (standby)	4 W
Max power consumption, transmitting (power save)	24 W
Max power consumption, transmitting (normal mode)	33 W
Transmit power	50 W

Radar Features
Dual range	✓
Overlay	✓
Dual radar support	✓
Auto Bird Gain	✓
Auto Gain	Dynamic
MARPA target tracking	yes (requires heading sensor, sold separately)
Echo Trails	✓
MotionScope	✓
Target size	✓
Scan averaging	✓