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home > Garmin GMR 18 HD+ Dome Radar > Garmin GMR 18 HD+ Dome Radar

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Garmin GMR 18 HD+ Dome RadarImagine navigating through thick fog or spotting distant vessels before they become a threatall from the compact confines of your boat's helm. The Garmin GMR 18 HD+ dome radar brings that peace of mind to smaller vessels where space is at a premium. This 18 inch powerhouse packs 4 kW of transmit power into a streamlined package, delivering sharp, high definition echoes that cut through clutter for unmatched clarity across every range. Whether you're

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Why choose thelockerguy wholesale?

Imagine navigating through thick fog or spotting distant vessels before they become a threat—all from the compact confines of your boat's helm. The Garmin GMR 18 HD+ dome radar brings that peace of mind to smaller vessels where space is at a premium. This 18-inch powerhouse packs 4 kW of transmit power into a streamlined package, delivering sharp, high-definition echoes that cut through clutter for unmatched clarity across every range. Whether you're dodging weekend traffic in busy harbors or scanning the horizon on open-water adventures, its intuitive auto-adjust features keep you focused on the journey, not the tweaking.

Standout Performance That Adapts to Your Waters

Crystal-Clear High-Definition Imaging: 8-bit true color resolution paints targets with precision, minimizing false echoes and maximizing separation—even in rain or choppy seas.
Smart Auto Adjustments: Dynamic Auto Gain and Sea Filter respond in real-time to harbors, coastal runs, or offshore swells, ensuring optimal visibility without manual fiddling.
Seamless Chartplotter Integration: Overlay radar sweeps directly on your map pages for a unified view. Pair it with a heading sensor for pinpoint accuracy and MARPA tracking to monitor up to 10 targets automatically.
Proven Range and Speed: Spot objects from 20 meters out to 36 nautical miles away, with a brisk 24 RPM rotation that refreshes your display fast enough for confident maneuvering.

Why Boaters Choose This Compact Radar for Everyday Reliability

For weekend warriors on fishing skiffs or cruisers with tight radar arches, the GMR 18 HD+ shines by blending pro-level detection with dead-simple operation. Its IPX7 waterproofing shrugs off heavy spray, while the low-profile dome (just 9.8 inches tall) slips into spaces where bulkier units won't fit. Power draw stays efficient at 10-32V, fitting neatly into most 12V systems without straining batteries. Users rave about how it transforms night runs or low-vis days from stressful ordeals into routine sails, thanks to guard zones that alert you to intruders in your safe bubble.

Beyond specs, it's built for the real world: vibration-resistant for bumpy rides, corrosion-proof for saltwater exposure, and ready to network via Garmin Marine Network for multi-screen setups. No steep learning curve—just plug in, mount securely, and let it enhance your situational awareness from day one.

Detailed Specifications at a Glance

Specification	Details
Radar Type & Size	Radome, 18-inch dome (20" diameter x 9.8" height)
Transmit Power	4 kW
Range	20 meters minimum to 36 nautical miles maximum
Beam Width	5.2° horizontal, 25° vertical
Rotation Speed	24 RPM
Power Input	10-32 VDC
Waterproof Rating	IPX7
Weight	17 lbs (7.7 kg)

Everything You Need for a Smooth Setup

GMR 18 HD+ radome
Mounting hardware kit and template
15-meter power cable
15-meter network cable
Installation instructions

Mount it on a sturdy arch or mast with the included hardware—most installs wrap up in under an hour for experienced hands.

Frequently Asked Questions

What makes the Garmin GMR 18 HD+ radar suitable for smaller boats?

Its compact 18-inch dome fits tight spaces, while delivering powerful 4 kW performance for reliable detection without overwhelming your vessel's setup.

Does this radar require a heading sensor for full functionality?

A heading sensor enhances overlay accuracy on chartplotters and enables MARPA target tracking, but basic radar functions work independently.

How does Dynamic Auto Gain work in different conditions?

It automatically fine-tunes sensitivity based on your environment—reducing clutter in harbors or boosting range offshore—for hassle-free optimal imaging.

What's the effective range for detecting small boats or buoys?

Minimum detection starts at 20 meters for close-in objects, scaling up to 36 nautical miles for larger targets, with HD clarity throughout.

Is the GMR 18 HD+ easy to install on my own?

Yes, with no complex settings and included cables/hardware, most boaters handle it themselves. Follow the straightforward instructions for a secure fit.

Can this radar handle rough seas and weather?

IPX7 waterproofing and Dynamic Sea Filter make it robust against spray, waves, and rain, maintaining clear returns in tough marine conditions.

Does it integrate with other Garmin devices?

Perfectly via the Garmin Marine Network, overlaying on compatible chartplotters and displays for a cohesive navigation ecosystem.

This 18 Inch dome radar enhances situational awareness with 4 kW of transmit power and clear echo definition at all ranges and helps you avoid traffic on the water. Overlay radar images onto your chartplotter’s map page. You can add an optional autopilot or heading sensor (sold separately) for best results. This radar provides MARPA target tracking when combined with a multifunction display and heading sensor.

Garmin 100171900 Attributes

Radar Type: Radome
Size: 18 Inch Dome
Range: 20 Meters To 36 Nautical Miles
Rotation Speed: 24 RPM
Power Output: 4 Kilo Watt
Dimension: 20 Inch Diameter x 9.8 Inch Height
Input Voltage: 10 To 32 Volt
Beam Width: 5.2 Degree Horizontal
Color: White
Waterproof Rating: IPX7 Rating Waterproof
Includes: 15 Meter Power Cable, 15 Meter Network Cable, Installation Instructions, Mounting Hardware Kit

Garmin 100171900 Features & Benefits

18 Inch Dome Radar Delivers 4-KW Transmit Power And Clear Echo Definition At All Ranges; Maximum Range Of 36 Nautical Miles, A 20-Meter Minimum Range And A Rotation Speed Of 24 RPM
GMR 18 HD+ Features 8-Bit True Color Resolution For A Clear Presentation On Your Chartplotter Screen
Radar Doesn’t Have Any Complex User Settings To Deal With, So It’s Easy To Install And Start Using
Gain Levels Automatically Adjust To Optimum Settings For Harbors, Near Shore And Offshore In Open Waters
Limited 1 Year Warranty

Garmin 100171900 Installation Instructions

Garmin 100171900 Warranties

garmin-marine-warranty-policy.pdf

GMR 18 HD+ Dome Radar w/ 15m cable

The compact GMR 18 HD+ dome radar is a good choice for boats with limited room for radar placement. It delivers 4 kW of transmit power and clear echo definition at all ranges to enhance situational awareness. Overlay radar images onto your chartplotter map page; however, for best overlay results, an optional autopilot or heading sensor is recommended. It also helps you avoid traffic on the water. GMR 18 HD+ provides MARPA target tracking when combined with a multifunction display and heading sensor (sold separately).

Dynamic Auto Gain automatically adjusts to your surroundings for optimal performance in all conditions. Dynamic Sea Filter automatically adjusts sea clutter, depending on sea conditions. GMR 18 HD+ features 8-bit true color resolution for a clear presentation on your chartplotter screen. It has a maximum range of 36 nautical miles with a minimum range of 20 meters and a rotation speed of 24 RPM. There are no complex user settings, and it’s easy to install and start using.

Features:

Streamlined 18-inch 4kW dome radar
Deliver 4kW of transmit power and clear echo definition at all ranges
Dynamic Auto Gain automatically adjusts to your surroundings for optimal performance in all conditions
Dynamic Sea Filter automatically adjusts gain to changing sea conditions
Overlays the radar image on the chartplotter map page (autopilot or heading sensor is recommended for best results)
MARPA target tracking when combined with a multifunction display and heading sensor (sold separately)
Beam angles: 5.0° horizontal, 25° vertical
Max range: 36 nautical miles
Minimum range: 20 meters
Rotation speed: 24 revolutions/minute
No complex user settings; easy to install and start using

Comes with:

GMR 18 HD+ radome
Mounting hardware kit
Power cable (15 m/49.21 ft)
Network cable (15 m/49.21 ft)
Installation instructions
Mounting template

Garmin GMR 18 HD + radar compact and streamlined 4 kW dome The compact GMR 18 HD + dome radar is ideal for ships with limited space for radar placement. It can provide 4 kW transmission power and clear echo definition in all ranges to enhance situational awareness. The radar image is superimposed on the chartplotter map page; however, for best coverage, it is recommended to use the optional autopilot or heading sensor. It can also help you avoid water traffic. When combined with a multi-function display and heading sensor (sold separately), GMR 18 HD+ can provide MARPA target tracking. Dynamic automatic gain can automatically adapt to your surrounding environment under all conditions to obtain the best performance. The dynamic sea filter automatically adjusts the sea clutter according to the sea conditions. GMR 18 HD+ has 8-bit true color resolution, which can be clearly displayed on the chartplotter screen. It has a maximum range of 36 nautical miles, a minimum range of 20 meters, and a speed of 24 RPM. There are no complicated user settings, and it is easy to install and use.
SKU: NVN-63433
MPN: 010-01719-00
UPC: 753759168544

Garmin GMR 18 HD+ Dome Radar

Name: Garmin GMR 18 HD+ Dome Radar
Brand: neumaticosmexico.com
SKU: 20330140225
Price: 654.50 USD
Availability: InStock
Rating: 4.8298000000000005 (2454 reviews)