Garmin offers a full line of radome and open array radars. Garmin xHD2 radars provide high-definition digital technology delivering high-resolution radar images to your plotter — images that are sharper with even better target separation. Garmin high-definition xHD2 antennas are the future-proof choice when upgrading your Garmin Marine Network.

GMR 18/24 xHD3

Scan Averaging Technology 

A first for Garmin magnetron radar, scan averaging helps filter out sea clutter and interference to enhance the detection and display of consistent targets.

Angular Target-Size Adjustment

Pulse expansion and angular target-size processing techniques optimize on-screen object shapes for better interpretation at all range scales.

Faster Scanning Antenna 

Rotation speeds up to 60 rpm improve the redraw rate for faster target updates.

True Echo Trails

A historical "trail" of boats on the water is displayed on the screen, removing relative motion influences to help you quickly identify moving targets and potential collision threats.

Dual Range with Overlay

A single radar antenna is capable of providing split-screen, side-by-side images on your compatible chartplotter, with independent range settings and controls for both close and long range. Overlay either or both ranges on a chart.

GMR™ Fantom 18

18-inch Dome Radar with MotionScope™ Technology

• 18-inch, 40 W solid-state, dome radar
• MotionScope™ technology uses the Doppler effect to detect and highlight targets moving toward you or away in different colors to help avoid collisions, find flocks of birds, and track weather
• Pulse Compression technology provides high resolution while maximizing energy, to enhance detection and identification of targets
• Target Size allows you to adjust the size of objects on the radar image
• 20 foot to 48 nautical mile detection range

The 18-inch, 40 W solid-state Garmin GMR Fantom 18 dome radar features MotionScope technology, which uses the Doppler effect to detect and highlight moving targets to help you avoid potential collisions. Fully integrates with select Garmin chartplotters.

High-power 40 W Radar with 5.2 Degree Beam

You get excellent close- and long-range target detection ranging from as close as 20 feet to 48 nautical miles, even in fog or rain. Its 5.2 degree horizontal beamwidth provides a high resolution image and high antenna gain so it can pick out targets at a distance. The result is this radar paints a clear, concise image of the shoreline, other vessels and impending weather — right on your Garmin chartplotter. You get consistent target positions, excellent target separation and reliable operation. Its 8-bit true color imagery also helps you discriminate large targets from small ones and enhances target separation. Radar data is overlaid onto charts (autopilot or heading sensor recommended). Low power consumption, instant turn on and no delay from warming up as with magnetron radars. Rotation speeds of 24 for reduced power consumption and 48 rpm to provide fast screen updates.

MotionScope Doppler Technology

GMR Fantom radars use the Doppler effect to detect and highlight moving targets to help you avoid potential collisions, find flocks of birds and track weather formations. The Doppler effect is the frequency shift in the radar echo due to the relative motion of the target. This allows for instant detection of any targets moving toward or away from the radar. MotionScope highlights the moving targets in different colors on the radar display so you can navigate around other boats or severe weather, or toward fishing spots where birds are feeding at the surface.

GMR™ Fantom 24

24-inch Dome Radar with MotionScope™ Technology

• 24-inch, 40 W solid-state, dome radar
• MotionScope™ technology uses the Doppler effect to detect and highlight targets moving toward you or away in different colors to help avoid collisions, find flocks of birds, and track weather
• Pulse Compression technology provides high resolution while maximizing energy, to enhance detection and identification of targets
• Target Size allows you to adjust the size of objects on the radar image
• 20 foot to 48 nautical mile detection range

The 24-inch, 40 W solid-state Garmin GMR Fantom 24 dome radar features MotionScope technology, which uses the Doppler effect to detect and highlight moving targets to help you avoid potential collisions. Fully integrates with select Garmin chartplotters.

High-power 40 W Radar with 3.7 Degree Beam

You get excellent close- and long-range target detection ranging from as close as 20 feet to 48 nautical miles, even in fog or rain. Its 3.7 degree horizontal beamwidth provides a high resolution image and high antenna gain so it can pick out targets at a distance. The result is this radar paints a clear, concise image of the shoreline, other vessels and impending weather — right on your Garmin chartplotter. You get consistent target positions, excellent target separation and reliable operation. Its 8-bit true color imagery also helps you discriminate large targets from small ones and enhances target separation. Radar data is overlaid onto charts (autopilot or heading sensor recommended). Low power consumption, instant turn on and no delay from warming up as with magnetron radars. Rotation speeds of 24 for reduced power consumption and 48 rpm to provide fast screen updates.

MotionScope Doppler Technology

GMR Fantom radars use the Doppler effect to detect and highlight moving targets to help you avoid potential collisions, find flocks of birds and track weather formations. The Doppler effect is the frequency shift in the radar echo due to the relative motion of the target. This allows for instant detection of any targets moving toward or away from the radar. MotionScope highlights the moving targets in different colors on the radar display so you can navigate around other boats or severe weather, or toward fishing spots where birds are feeding at the surface.

GMR™ 18 HD+ Radome

GMR Fantom™ 6

6-foot Open-array Radar with 40 W of Power

• 6-foot, 40 W solid-state, open-array radar with pedestal
• MotionScope™ technology uses the Doppler effect to detect and highlight moving targets to help avoid collisions, find flocks of birds and track weather
• Pulse Compression technology provides high resolution while maximizing energy in order to enhance detection and identification of targets
• Pulse Expansion setting increases target sizes to help differentiate real targets from noise
• Provides radar data overlay onto charts (autopilot or heading sensor recommended)
• Detection range of 20 feet to 72 nautical miles

The 6-foot, 40 W solid-state Garmin GMR Fantom radar features MotionScope technology, which uses the Doppler effect to detect and highlight moving targets to help you avoid potential collisions. It fully integrates with select Garmin chartplotters.

High-power 40 W Radar with Narrow 1.25 Degree Beam

You get excellent close- and long-range target detection, ranging from as close as 20 feet to 72 nautical miles, even in fog or rain. Its narrow 1.25 degree horizontal beamwidth provides a high-resolution image and high antenna gain so it can pick out weak targets at a distance. The result is this radar paints a clear, concise image of the shoreline, other vessels and impending weather — right on your Garmin chartplotter. You get consistent target positions, excellent target separation and reliable operation. Its 8-bit true color imagery also helps you discriminate large targets from small ones and enhances target separation. Rotation speed of up to 48 rpm provides fast screen updates.

MotionScope Doppler Technology

The GMR Fantom uses the Doppler effect to detect and highlight moving targets to help you avoid potential collisions, find flocks of birds and track weather formations. The Doppler effect is the frequency shift in the radar echo due to the relative motion of the target. This allows for instant detection of any targets moving toward or away from the radar. MotionScope highlights the moving targets on the radar display so you can navigate around other boats or severe weather — or toward fishing spots where birds are feeding at the surface.

GMR Fantom™ 4

4-foot Open-array Radar with 40 W of Power

• 4-foot, 40 W solid-state, open-array radar with pedestal
• MotionScope™ technology uses the Doppler effect to detect and highlight moving targets to help avoid collisions, find flocks of birds and track weather
• Pulse Compression technology provides high resolution while maximizing energy in order to enhance detection and identification of targets
• Pulse Expansion setting increases target sizes to help differentiate real targets from noise
• Provides radar data overlay onto charts (autopilot or heading sensor recommended)
• Detection range of 20 feet to 72 nautical miles

The 4-foot, 40 W solid-state Garmin GMR Fantom radar features MotionScope technology, which uses the Doppler effect to detect and highlight moving targets to help you avoid potential collisions. It fully integrates with select Garmin chartplotters.

High-power 40 W Radar with Narrow 1.8 Degree Beam

You get excellent close- and long-range target detection ranging from as close as 20 feet to 72 nautical miles, even in fog or rain. Its narrow 1.8 degree horizontal beamwidth provides a high-resolution image and high antenna gain so it can pick out weak targets at a distance. The result is this radar paints a clear, concise image of the shoreline, other vessels and impending weather — right on your Garmin chartplotter. You get consistent target positions, excellent target separation and reliable operation. Its 8-bit true color imagery also helps you discriminate large targets from small ones and enhances target separation. Rotation speed of up to 48 rpm provides fast screen updates.

MotionScope Doppler Technology

The GMR Fantom uses the Doppler effect to detect and highlight moving targets to help you avoid potential collisions, find flocks of birds and track weather formations. The Doppler effect is the frequency shift in the radar echo due to the relative motion of the target. This allows for instant detection of any targets moving toward or away from the radar. MotionScope highlights the moving targets on the radar display so you can navigate around other boats or severe weather — or toward fishing spots where birds are feeding at the surface.

GMR™ 18 HD Radome

Sharpen your radar picture with high definition performance. The GMR 18 HD radar offers a whole new level of radar scanning capability.

Get Powerful Performance

The GMR 18 HD features high-powered Digital Signal Processing, providing sharper radar imagery and improved target separation.

This 18" (45.7 cm), 4 kW high definition radar has a 36 nm range, bringing radar images into even clearer focus. With automatic pulse optimization technology, the radar matches pulse widths and repetition rates with the nautical mile range that is selected. Combine that with the antenna’s 5 degree beamwidth, and you’re looking at the best weather penetration and target definition in its class.

To help you avoid traffic on the water, the GMR 18 HD provides MARPA target tracking when combined with a multi-function display and an optional heading sensor. MARPA tracking allows you to track the bearing, course, speed and predicted closest approach of up to 10 targets. In addition, like all Garmin radars, the GMR 18 HD has self-contained signal processing, which provides you with a more precise, easy to read signature.

Connect to the Garmin Marine Network

The GMR 18 HD transmits data over the Garmin Marine Network, a 100 MB plug-and-play proprietary network that gives you the ability to expand your boat’s system as needed. Once connected to the network, you can use any network-compatible Garmin chartplotter as your radar screen. And as an aid to locational awareness, you can overlay the GMR 18 HD radar image on the chartplotter's map page. You also can split the on-screen display so you can view the map and the standard radar page simultaneously.

GMR™ 18 xHD Radome

• 4 kW high-definition 18” dome radar
• Pairs ease of use with advanced open-array features
• 48 or 24 RPM rotation speeds for fast screen refreshes, auto adjusts as needed based on range
• 48 Mile max range setting
• No complex user settings, easy to install and start using

Our next-generation, 4 kW high-definition GMR 18 xHD dome radar pairs ease of use with advanced open-array features. Its intuitive operation makes modes and settings simple to understand so you can enjoy great performance without a lot of technical know-how.

The GMR 18 xHD delivers higher resolution than our previous generation 18” dome radars. New Dynamic Auto Gain and Dynamic Sea Filter continually adjust to your surroundings, providing optimal performance in varying conditions. Choose from multiple levels of aggressiveness or use manual gain adjustment. Dual range operation allows fully independent split-screen display of far and close radar views in full 8-bit color (select chartplotters); range of 48 nm. Optional “No Transmit Zone” can protect areas behind the radar from being radiated while providing full forward-looking radar capability. This makes installation more flexible by providing more suitable installation options on your boat.

GMR™ 24 xHD Radome

• 4 kW high-definition 24” dome radar
• Pairs ease of use with advanced open-array features
• 48 or 24 RPM rotation speeds for fast screen refreshes, auto adjusts as needed based on range
• 48 Mile max range setting
• No complex user settings, easy to install and start using

Our next-generation, 4 kW high-definition GMR 24 xHD dome radar pairs ease of use with advanced open-array features. Its intuitive operation makes modes and settings simple to understand so you can enjoy great performance without a lot of technical know-how.

The GMR 24 xHD has a narrower beam width that paints a very precise, high-resolution image. New Dynamic Auto Gain and Dynamic Sea Filter continually adjust to your surroundings, providing optimal performance in varying conditions. Choose from multiple levels of aggressiveness or use manual gain adjustment. Dual range operation allows fully independent split-screen display of far and close radar views in full 8-bit color (select chartplotters); range of 48 nm. Optional “No Transmit Zone” can protect areas behind the radar from being radiated while providing full forward-looking radar capability. This makes installation more flexible by providing more suitable installation options on your boat.

GMR™ 1224 xHD2 Open Array Radar and Pedestal