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GMR™ 18 xHD Radome


Extend your warranty protection with PLUS plan!

In stock online.
Model # 15081870 | Mfg # 010-00959-00

Product Description

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.

  • 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

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. "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

  • Dimensions: 20" diameter, 9 3/4" high (50.8 cm diameter, 24.8 cm high)
  • Weight: 17 lbs (7.7 kg)
  • Waterproof Rating: IPX7
  • Antenna Sweep: 24/48 rpm (dual rotation)
  • Transmit Power: 4 kW
  • Power input: 10.5-35 V DC, 33.5 W
  • Beamwidth: 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

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

West Advisor

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by PowerReviews
Garmin GMR 18 xHD Radome

(based on 1 review)

Ratings Distribution

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Reviewed by 1 customer

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(1 of 2 customers found this review helpful)


I would buy again

By dragracer

from Gastonia, NC

Comments about Garmin GMR 18 xHD Radome:

Great looking unit. Works perfect. I wish I bought this several years ago.

  • Was this a gift?:
  • No

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