Garmin GMR™ 18 xHD Radome

Garmin's 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 Garmin's 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.

Product Features:

  • 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
  • High definition (outstanding target separation with less screen clutter)
  • MARPA target tracking/collison avoidance (Requires Heading Sensor, Sold Separately)
  • Guard zone alarm
  • 8 bit color
  • Radar overlay support
  • Dual range support
  • No Transmit Zone

xHD performance in a dome - High resolution (1440 display spokes vs. 720 on HD domes, draws detail down to ¼ of a degree vs. ½) to provide improved target separation and finer shoreline detail. 8-bit true color helps differentiate large targets from small ones and aids target separation.

Dual Range Operation - Simultaneously view both short and long ranges. You can keep a close eye on your immediate surroundings while also knowing what’s happening farther out. It’s like having 2 radars for the price of one.

Radar Overlay - Overlays radar returns over the top of your navigation charts to provide the best of both GPS and radar. You’ll have greater confidence in the accuracy of your charts when the radar paints the same markers and shorelines. It also helps you discern which radar returns are known charted objects and which are boats or other collision threats.

Dynamic Auto Gain and Sea Filter - Automatically adjusts to your surroundings for optimal performance in all conditions. Dynamic Auto Gain maximizes your ability to see distant targets while limiting excess clutter on the screen. Dynamic Sea Filter reduces the returns caused by nearby waves in heavy seas. You can choose from multiple levels of aggressiveness or use manual gain adjustment.

Mini-Automatic Radar Plotting Aid (MARPA) - Identify and track targets that might pose a collision threat. Targets are manually selected, but then the radar automatically tracks their location, speed, and direction over time. MARPA tells you the closest point of approach and time to that point if you continue on your current route so you can make adjustments for safety. It also alerts you when targets become dangerous or violate a safe proximity of your boat.

In the Box:

  • GMR 18 xHD
  • Mounting hardware kit
  • Power cable (15 m/49.21 ft)
  • Network cable (15 m/49.21 ft)
  • Installation instructions
  • Mounting template
  • Grommet for marine cable

GMR™ 18 xHD Radome Physical and Performance Specifications
Product No. Weight Water Rating Antenna Length Dimensions
010-00959-00 7.7 kg
(17 lbs)
IPX7 43.18 cm
(17 in)
50.8 cm diameter, 24.8 cm high
(20 in diameter, 9.75 in high)
GMR™ 18 xHD Radar Specifications
Power consumption Rotation speed (RPM) Transmit power Power input Beam width Max range Min range Radar type
30 W typical
48 W max
24/48 rpm (dual rotation) 4 kW 11-35 V DC 5.2° horizontal
25° vertical
48 nm 20 meters Radome
Click Image to Zoom
Garmin GMR™ 18 xHD Radome
Price: $ 1,599.99

    * Oversize item
    Due to the large size or weight of this item it is considered oversize and does not qualify for free shipping offers. Shipping by freight carrier may be required. Click here for more information.

    © Site content copyright Mauri Pro Sailing, LLC. All rights reserved
    Site developed by Mauri Pro Sailing
    Mauri Logo