Garmin GMR18HD+ Radar Reman
Garmin GMR18HD+ Radar Reman — Product description
Enhance Your On-Water Safety with Superior Target Detection
Picture this: you're navigating through fog-shrouded waters or scanning the horizon at dusk for unseen obstacles. The Garmin GMR 18 HD+ steps in as your reliable eyes on the water, offering crisp, high-definition radar images that cut through clutter for unmatched clarity. This compact 18-inch dome packs 4 kW of transmit power, delivering precise echo returns from close-in targets like buoys to distant vessels up to 36 nautical miles away. Boaters with limited mounting space appreciate its streamlined profile, which integrates seamlessly without dominating your vessel's silhouette.
What sets it apart is the intelligent processing that adapts in real-time. Dynamic Auto Gain senses your environment—whether calm bays or choppy seas—and fine-tunes sensitivity to highlight real threats while suppressing noise. Pair it with your chartplotter for overlaid radar scans that transform situational awareness, making it easier to steer clear of traffic or plot safe courses. For those moments when precision matters most, like target tracking with MARPA, it shines brightest when linked to a heading sensor, turning potential hazards into manageable alerts.
Adaptive Technology for Every Condition
The heart of the GMR 18 HD+ lies in its advanced filtering. Dynamic Sea Filter dynamically combats clutter from waves, ensuring spray and whitecaps don't obscure critical reads. With 8-bit true color resolution, echoes pop in vivid detail on your display, reducing guesswork during night runs or poor visibility. Its 24 RPM rotation speed strikes a perfect balance—fast enough for responsive updates, steady enough for stable long-range views.
Beam precision is another standout: a narrow 5.2° horizontal beam slices through interference for sharp separation of closely spaced objects, while the 25° vertical beam captures low-profile targets effectively. Minimum detection kicks in at just 20 meters, ideal for tight maneuvers in marinas or channels. IPX7 water resistance means it shrugs off heavy rain or spray, keeping you operational when conditions turn rough.
Effortless Setup for Seamless Integration
Getting up and running feels straightforward, thanks to no-fuss controls and included essentials like a 15-meter power cable and network cable. Mount it on a sturdy arch, mast, or flat surface—its 17-pound build and 20-inch diameter footprint suit mid-sized cruisers, fishing boats, or yachts under 40 feet. Connect via Garmin Marine Network to compatible chartplotters for overlay magic and guard zone alarms that ping audible warnings for intruding targets.
Pro tip from seasoned installers: Align it forward-facing with minimal obstructions for optimal 360° coverage. Power draw stays efficient at 3W standby, ramping to 18-24W during transmit, compatible with 11-35V DC systems. While user settings are minimal, unlocking full potential—like MARPA collision avoidance—pairs best with a heading sensor for stabilized overlays.
Versatile Applications for Anglers, Cruisers, and Commercial Ops
Fishermen love spotting bird flocks over reefs or marking wrecks from afar. Cruisers rely on it for collision avoidance in busy harbors. Even commercial operators value the high-definition separation for navigating shipping lanes. Guard zones create virtual safety bubbles, alerting to anything crossing your path. In essence, it elevates confidence, letting you focus on the journey rather than the scan.
Detailed Technical Specifications
| Specification | Details |
|---|---|
| Physical Dimensions | 20 in diameter, 9.8 in high (50.8 cm x 24.8 cm) |
| Weight | 17 lbs (7.7 kg) |
| Water Rating | IPX7 |
| Antenna Length | 17 in (43.18 cm) |
| Power Consumption | 3 W standby; 18.1-24.4 W transmit |
| Rotation Speed | 24 RPM |
| Transmit Power | 4 kW |
| Power Input | 11-35 VDC |
| Beam Width | 5.2° horizontal, 25° vertical |
| Maximum Range | 36 nm |
| Minimum Range | 20 meters |
| Radar Type | Radome |
| Radar Features | |
| High Definition | Yes (outstanding target separation) |
| MARPA Target Tracking | Yes (requires heading sensor) |
| Guard Zone Alarm | Yes |
| Color Resolution | 8-bit |
| Radar Overlay | Yes |
Complete Kit for Quick Deployment
- Remanufactured GMR 18 HD+ radome
- Mounting hardware kit
- 15 m (49.21 ft) power cable
- 15 m (49.21 ft) network cable
- Installation instructions
- Mounting template
Remanufactured by experts, it arrives tested and ready, often matching new-unit performance at a fraction of the investment.
Frequently Asked Questions
What is the detection range of the Garmin GMR 18 HD+ radar?
It provides a maximum range of 36 nautical miles and a minimum range of 20 meters, making it versatile for both long-distance scanning and close-quarter navigation.
Does the GMR 18 HD+ support target tracking features?
Yes, it includes MARPA target tracking for collision avoidance, but it requires a compatible heading sensor for optimal accuracy.
What power requirements does this radar dome have?
It operates on 11-35 VDC, with low 3W standby power and up to 24.4W during transmission, suitable for most marine electrical systems.
Is the GMR 18 HD+ easy to install on smaller boats?
Absolutely—its compact 18-inch dome and included mounting hardware, cables, and template make installation straightforward, even in space-constrained setups.
How does Dynamic Auto Gain work on this radar?
It automatically adjusts sensitivity based on surrounding conditions, optimizing image clarity by reducing clutter without manual tweaks.
What boats is the Garmin GMR 18 HD+ best suited for?
Ideal for mid-sized vessels like fishing boats, cruisers, and yachts up to 40 feet, where space is limited but powerful radar is essential.
Can radar images overlay on chartplotters?
Yes, it supports seamless overlay on compatible Garmin chartplotters via the Marine Network, with best results using a heading sensor or autopilot.
Garmin GMR™ 18 HD+ Radome Compact, Streamlined 4 kW Dome Remanufactured
Model: 010-N1719-00- Streamlined 18-inch 4 kW dome radar
- Delivers 4 kW 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 radar image on the chartplotter map page (autopilot or heading sensor recommended for best results)
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.
Specifications| Physical and Performance | |
| Physical dimensions | 20 in diameter, 9.8 in high (50.8 cm diameter, 24.8 cm high) |
| Weight | 17 lbs (7.7 kg) |
| Water rating | IPX7 |
| Antenna length | 17"" (43.18 cm) |
| Power consumption | 3 W standby; 18.1-24.4 W transmit |
| Rotation speed | 24 rpm |
| Transmit power | 4kw |
| Power input | 11-35 vDC |
| Beam width | 5.2° horizontal, 25° vertical |
| Maximum range | 36 nm |
| Minimum range | 20 meters |
| Radar type | Radome |
| Radar Features | |
| 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 |
| Color | 8 bit |
| Radar overlay support | Yes |
What's in the Box:
- GMR 18 HD+ radome Remanufactured
- Mounting hardware kit
- Power cable (15 m/49.21 ft)
- Network cable (15 m/49.21 ft)
- Installation instructions
- Mounting template
SKU: NVN-1003484
MPN: 010-N1719-00
UPC: 753759181413
Technical specifications
| Brand | Garmin |
| Model | Garmin GMR18HD+ Radar Reman |
| SKU / MFR# | 1003484 |
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