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GARMIN 18" GMR HD Digital Radome

Model # 9673732Mfg # 010-00572-02


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Product Description

Sharpen your radar picture with high definition performance. The GMR 18 HD radar offers a whole new level of radar scanning capability.

Get Powerful Performance: The GMR 18 HD features high-powered Digital Signal Processing, providing sharper radar imagery and improved target separation. This 18", 4 kW high definition radar has a 36 nm range, bringing radar images into even clearer focus. With automatic pulse optimization technology, the radar matches pulse widths and repetition rates with the nautical mile range that is selected. Combine that with the antenna’s five-degree beamwidth, and you’re looking at the best weather penetration and target definition in its class.

To help you avoid traffic on the water, the GMR 18 HD provides MARPA target tracking when combined with a multi-function display and an optional heading sensor. MARPA tracking allows you to track the bearing, course, speed and predicted closest approach of up to 10 targets. In addition, like all Garmin radars, the GMR 18 HD has self-contained signal processing, which provides you with a more precise, easy to read signature.

Connect to the Garmin Marine Network: The GMR 18 HD transmits data over the Garmin Marine Network, a 100 MB plug-and-play proprietary network that gives you the ability to expand your boat’s system as needed. Once connected to the network, you can use any network-compatible Garmin chartplotter as your radar screen. And as an aid to locational awareness, you can overlay the GMR 18 HD radar image on the chartplotter's map page. You also can split the on-screen display so you can view the map and the standard radar page simultaneously.

  • Physical dimensions: 18" diameter, 9.3" high
  • Weight: 15.8 lbs
  • Waterproof Rating: IPX7
  • Rotation Speed (RPM): 24/30 rpm (dual rotation)
  • Transmit Power: 4 kW
  • Power Input: 10.5-35 V DC
  • Beamwidth: 5.0° horizontal, 25° vertical
  • Maximum Range: 36 nm
  • Minimum Range: 20 meters
  • Radar Type: Radome
  • Power Consumption: 33.5 W typical
  • Antenna Length: 17"


18" GMR HD Digital Radome

Beam 5.0? H x 25? V
Display Type MARPA
Draw Not Stated
Radome Dimensions 18" Dia x 9.3"H
Features High Def Interfaces: Garmin Marine Network
Rotation 24/30 rpm
Transmit Power 4kW
Type Radome
Voltage 10.5 to 35VDC
Warranty Two Years
Waterproof IPX7
Weight 15.8 lbs

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by PowerReviews
GarminGMR HD Digital Radar Scanners

(based on 1 review)

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Reviewed by 1 customer

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(2 of 3 customers found this review helpful)


Product very much worth buying!

By Genesis

from Warwick, RI

About Me Love a challenge, Outdoor Enthusiast


  • Easy To Set Up
  • Reliable Performance
  • Strong Construction
  • Waterproof


    Best Uses

    • Expeditions
    • Fishing
    • Large Boats
    • Navigation
    • Sailing

    Comments about GMR HD Digital Radar Scanners:

    This radar scanner is perfect for when your out on the water and the fog rolls in. Just use the radar and this unit is VERY accurate. You will get back to the safety of your Mariner with ease.

    • Primary use:
    • Personal

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