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Garmin

Garmin GMR 18 HD3 18" Radar Dome

$1,799.99
SKU:
101248
UPC:
753759320737
MPN:
010-02843-00
Condition:
Brand New
Availability:
In Stock
Shipping:
Free 2-Day Shipping on Orders $500+
  • Garmin Garmin GMR 18 HD3 18" Radar Dome [010-02843-00] MyGreenOutdoors
  • Garmin Garmin GMR 18 HD3 18" Radar Dome [010-02843-00] MyGreenOutdoors
  • Garmin Garmin GMR 18 HD3 18" Radar Dome [010-02843-00] MyGreenOutdoors

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Description

Garmin marine radar

Garmin GMR 18 HD3 18" Radar Dome

This compact 18" dome radar combines ease of use with powerful scanning features that work to maximize your confidence and situational awareness on the water.

Garmin Authorized Dealer
Type18" radome
Power4kW
Max Range36 nautical miles
SeriesHD3
MPN010-02843-00

Is this the right Garmin radar?

Best for a clean, compact Garmin radar install where traffic, weather, obstacle awareness, and low-visibility confidence matter. Confirm chartplotter compatibility, mount location, cabling, and heading-sensor needs before ordering.

Feature highlights

  • 4 KW power output, 36 nautical mile max range
  • Space-saving 18" dome
  • Marpa target tracking
  • Dynamic auto gain and sea filter
  • Dual-radar support
  • Quiet dome drive motor

Feature details

  • Dual-Radar Support: Using dual radar provides redundancy and allows each display unit on the boat to pull data from one of two different radar sources.
  • Dynamic Auto Gain: Gain automatically adjusts levels to optimum settings.
  • Dynamic Sea Filter: Radar 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 the best results.
  • MARPA Target Tracking: MARPA tracks selected targets to help keep track of other vessels and avoid collisions (with appropriate sensors, sold separately).
  • Low-Noise Scanning: The reliable GMR HD3 dome drive motor spins at a fixed 24 rpm, offering reliable, low-noise operation and minimal power consumption.
  • Compact and Powerful: 4 kW of transmit power, a 36 nautical mile maximum range, and clear echo definition at all ranges.
  • Close-In Target Scanning: Minimum scanning range of 20 meters for excellent short-range detection and target detail.
  • High-Resolution Radar: 8-bit true color for outstanding target separation with less screen clutter.
  • Timed Transmit Mode: Specify transmit times down to the seconds to help reduce power consumption.
  • Intuitive operation: No complex user settings, so it’s easy to install and start using.

What's in the box

  • GMR 18 HD3 dome radar
  • Power cable (15 m/49.21 ft)
  • Network cable (15 m/49.21 ft)
  • Mounting hardware kit and template
  • Installation instructions

Before you buy

Radar performance and compatibility depend on your Garmin display, network, mount, cable route, and optional heading-sensor setup. Contact MyGreenOutdoors before checkout if you want help confirming fitment.

Specifications

Dimensions20" diameter, 9.8" high (508 mm diameter, 248 mm high)
Weight7.0 kg
WaterproofIPX7
Antenna length17" (43 cm)
Rotation Speed (RPM)24 rpm
Beam Width5.2° horizontal, 25° vertical
Maximum Range36 nm
Minimum Range20 meters
Radar TypeRadome
Power Input11-32 v DC
Power Consumption (Standby)15 W
Typical Power Consumption, Transmitting (Normal Mode)40 W
Transmit Power4 KW
OverlayYes
Dual Radar SupportYes
Auto GainDynamic
MARPA Target TrackingYes (requires heading sensor, sold separately)
Array Size (Inches)18"
Power - Output4kW
Range - Max (Miles)36nm
Box Dimensions13"H x 24"W x 24"L WT: 30.1 lbs
UPC753759320737
MPN010-02843-00
UPC/GTIN753759320737

Compare similar Garmin dome radars

A short, focused comparison of nearby Garmin radar options.

Common questions

Is this a complete radar?
Yes, this listing is for the radar dome.

Will it work with every Garmin display?
No. Confirm compatibility with your Garmin chartplotter or ask us before ordering.

Do I need a heading sensor?
Some features, including the best radar overlay and MARPA target tracking, may require appropriate sensors sold separately.

MPN: 010-02843-00 · UPC/GTIN: 753759320737

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