Garmin Radar GMR18 xHD3 RadomeView all products in Radar #:  14677
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Garmin Radar GMR18 xHD3 Radome

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Free Shipping This Item qualifies for Free Shipping on orders over $99! More Info...

Delivers higher resolution than Garmin's previous generation 18" radar dome. Two rotation speeds.
More Details...   #14677
Brand:  Garmin
MFG Part#:   010-02841-00
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Garmin Radar GMR18 xHD3 Radome

Loaded with advanced features typically found on open arrays, these powerful 18” dome radars offer superior traffic, obstacle and weather detection for peace of mind on the water.

A first for Garmin magnetron radar, scan averaging helps filter out sea clutter and interference to enhance the detection and display of consistent targets.

Pulse expansion and angular target-size processing techniques optimize on-screen object shapes for better interpretation at all range scales.

Rotation speeds up to 60 rpm improve the redraw rate for faster target updates.

A historical “trail” of boats on the water is displayed on the screen, removing relative motion influence to help you quickly identify moving targets and potential collision threats.

A single radar antenna is capable of providing split-screen, side-by-side images on your compatible chartplotter, with independent range setting and controls for both close and long range. Overlay either or both ranges on a chart.

Gain automatically adjusts levels to optimum settings for harbors, near shore and offshore in open waters.

See overlaid images on your chartplotter’s map screen (with appropriate sensors, sold separately).

Pick out targets at a distance, thanks to narrow horizontal beamwidth and high antenna gain.

This provides redundancy and allows each display unit to pull data from different sources.

Radar gain automatically adjusts sea clutter for calm, medium and rough sea conditions.

Locate flocks of birds at the water’s surface where baitfish are also likely to be found.
In the Box
  • GMR 18 xHD3 Radome
  • Mounting hardware kit
  • Power cable (15m/49.21')
  • Network cable (15m/49.21')
  • Installation instructions
  • Mounting template

  Garmin GMR 18 xHD3 Installation Instructions

Physical & Performance

Maximum range 48 nm
Radar type Radome
Dimension 18: 20" x 9.8" (508 mm x 248 mm)
24: 25.4" x 9.8" (64.5 cm x 24.9 cm)
Transmit power 4 KW
Beam width 18: 5.2° horizontal, 25° vertical
24: 3.7° horizontal, 25° vertical
Power Input 11-32 V DC
Antenna Length 18: 17" (43 cm)
24: 23" (58 cm)
Rotation speed (RPM) Up to 60 rpm, depending on settings
Minimum range 20 meters
Waterproof IPX7

18: 7.0 kg
24: 8.7 kg


Dual range yes
Auto Gain Dynamic
Echo Trails True
Overlay yes
Typical power consumption, transmitting (normal mode) 40 W
Dual radar support Yes
MotionScope No
Auto Bird Gain Yes
Power Consumption (standby) 15 W
MARPA target tracking yes (requires heading sensor, sold separately)
Scan averaging Yes
Target size Yes

Share your knowledge of this product with other customers... Be the first to review this product Shipping FAQ

Q. Do you offer Free Shipping?
A. We have free ground shipping via UPS or Canada Post within Canada on most orders of $99 or more (pre-tax).

Q. What do you mean by most orders?
A. Some items are exempt from this offer and are indicated on the product page. Exempt items are usually bulky or heavy items such as buoys. Over 98% of the items on qualify for the free shipping offer.
To see what your shipping charge (if any) will be you can add the item(s) and quantities to the shopping cart and you will see a shipping cost calculator

Q. Where do you ship from?
A. We ship from Halifax, NS

Q. What is the delivery time?
A.  NS, NB, PE: 1 - 2 business days,
      ON, QC, NL: 2- 4 business days
      MB, SK, AB: 4-5 business days
      BC: 5-7 business days
When your order ships you will be emailed a tracking number which will give you the scheduled delivery date

Q. Do you offer Express Shipping?
A. We offer Express Shipping on some orders depending on the items ordered and the delivery address. If Express shipping is available for your order you will see the option on the checkout page. If you do not see the Express option and you want Express shipping please send an email and we will provide you with a quote (

Q. Do you require a signature on delivery?
A. We sometimes add a signature requirement especially if it is a high value package

Please Note:
Very Remote areas are exempt from Free Shipping offer. These are typically remote northern areas. Nunavut as well as many parts of the Yukon and NWT are exempt from free shipping

Money Back Guarantee
Guarantee You may return your purchase to us (with a return authorization number - use this form) within 30 days and we will refund the purchase price of the product. Items which are cut to order (rope, wire etc), software, chart cards and printed materials (paper charts, books) are not returnable.

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