Garmin GMR 18 xHD Radome

- 4 kW high-definition 18" dome radar
- Step up to xHD performance in a radome
- Dynamic new shape for improved look and antenna performance
- No complex user settings, easy to install and start using
- New Dynamic Auto Gain and Dynamic Sea Filter continually adjust to your surroundings to provide optimal performance in varying conditions

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. No Transmit Zone protects 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. 

Physical & Performance
Unit dimensions, WxHxD 20" diameter, 9.75" high (50.8 cm diameter, 24.8 cm high)
Weight 17 lbs (7.7 kg)
Waterproof Yes (IPX7)
Antenna sweep 24/48 rpm (dual rotation)
Transmit power 4 kW
Power input 10.5-35 V DC, 33.5 W
Beam width 5.2° horizontal, 25° vertical
Maximum range 48 nm
Minimum range 20 meters
Features & Benefits
Garmin Marine Network compatible Yes
High definition (outstanding target separation with less screen clutter) Yes
MARPA target tracking (collision avoidance) Yes (Requires Heading Sensor, Sold Separately)
Guard zone alarm Yes
Additional 
Radar Overlay Support: yes
Dual Range Support: yes
Dynamic Auto Gain: yes
Dynamic Sea Filter: yes
Timed Transmit: yes
No Transmit Zone: yes

Suits Garmin Models: 3006C, 3010C, 4008, 4010, 4012, 5008, 5012, 5015, 750, 750s, 8008 MFD, 8012 MFD, 8015 MFD, 8500 Black Box, 8530 Black Box