Item #956032

Garmin GMR 18 HD+ Dome Radar

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Garmin GMR 18 HD+ Dome Radar

Item # 956032


This 18" dome radar enhances situational awareness with 4 kW of transmit power and clear echo definition at all ranges and helps you avoid traffic on the water. If your boat has limited space for radar placement, this compact dome is for you. It packs the power and echo definition you need, at all ranges.When weather and sea conditions shift, the gain and sea filter do too automatically. Add even more detail to your chartplotter's map page with radar overlay.


  • Compact and powerful: this 18" dome radar delivers 4-kW transmit power and clear echo definition at all ranges. It has a maximum range of 36 nm, a 20-meter minimum range and a rotation speed of 24 RPM
  • See clearly: GMR 18 HD+ features 8-bit true color resolution for a clear presentation on your chartplotter screen
  • Intuitive operation: this radar doesn't have any complex user settings to deal with, so it's easy to install and start using
  • Dynamic auto-gain: gain levels automatically adjust to optimum settings for harbors, near shore and offshore in open waters
  • Dynamic sea filter: gain automatically adjusts sea clutter for calm, medium and rough sea conditions
  • Radar overlay: overlay radar images onto your chartplotter's map page. You can add an optional autopilot or heading sensor (sold separately) for best results
  • MARPA target trackign: this radar provides MARPA target tracking when combined with a multifunction display and heading sensor (not included, sold separately)


  • Dimensions: 20" diameter, 9.8" high (50.8 cm diameter, 24.8 cm high)
  • Weight: 17 lbs (7.7 kg)
  • Waterproof: IPX7
  • Antenna Length: 17" (43.18 cm)
  • Rotation Speed (Rpm): 24 rpm
  • Beam Width: 5.2° horizontal, 25° vertical
  • Max Range: 36 nm
  • Minimum Range: 20 m
  • Radar Type: Radome
  • Power Input: 11-35V DC
  • Transition Power: 4 kW
  • Radar Overlay Support: yes
  • Dual Radar: yes
  • Dynamic Auto Gain: yes
  • Marpa Target Track: yes (heading sensor required, not included, sold separately)


  • GMR 18 HD+ radome
  • Mounting hardware kit
  • Power cable (15 m/49.21')
  • Network cable (15 m/49.21')
  • Installation instructions
  • Mounting template

Installation Instructions

Mounting Template


This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.

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Part Numbers for Garmin GMR 18 HD+ Dome Radar

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