Garmin GMR 18 xHD Marine Radar

Brand: Garmin
Product Code: 010-00959-00
$1,599.99

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.

  • 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


  • 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

Physical dimensions 20" diameter, 9.75" high (50.8 cm diameter, 24.8 cm high)
Weight 17 lbs (7.7 kg)
Water rating IPX7
Power consumption 30 W typical; 48 W max
Antenna length 17" (43.18 cm)
Rotation speed (RPM) 24/48 rpm (dual rotation)
Transmit power 4 kW
Power input 11-35 V DC
Beam width 5.2° horizontal, 25° vertical
Maximum range 48 nm
Minimum range 20 meters
Radar type Radome