Garmin GMR18 XHD Reman Radar 18 Dome 4Kw
Garmin GMR18 XHD Reman Radar 18 Dome 4Kw — Product description
Why the Garmin GMR18 xHD Stands Out for Boaters
Navigating busy waterways or foggy mornings demands radar that cuts through the noise—literally. The Garmin GMR18 xHD remanufactured radar dome delivers crisp, high-definition imaging in a compact 18-inch package, perfect for boats where space is at a premium. Unlike traditional radars that leave you tweaking settings endlessly, this unit's smart tech adapts on the fly, keeping your screen clear whether you're dodging crab pots in shallow bays or scanning horizons for distant vessels.
Boaters rave about its ability to separate targets like buoys from birds, reducing false alarms that plague lesser systems. It's remanufactured to Garmin's rigorous standards, offering like-new performance at a fraction of the cost, backed by the reliability that has made Garmin a staple in marine electronics.
Superior Performance in Real-World Conditions
Powered by 4 kW of transmit strength, it reaches up to 48 nautical miles, spotting everything from massive ships to small craft with a narrow 5.2-degree horizontal beam for pinpoint accuracy. The vertical beam handles choppy seas without overwhelming your display.
- Dynamic Auto Gain: Automatically scales sensitivity to match changing environments—no more washed-out screens in rain or overly dim views at night.
- Dynamic Sea Clutter Filter: Suppresses wave bounce dynamically, revealing hidden targets like floating debris that could spell trouble.
- Dual Range Mode: Split your screen to monitor close threats and far-off navigation aids simultaneously, ideal for fishing trips or coastal cruising.
With dual rotation speeds (24/48 rpm), it balances detailed short-range scans with broad long-range sweeps, ensuring you're always one step ahead.
Effortless Installation and Enhanced Safety
Setting up shouldn't feel like rocket science. The GMR18 xHD's "No Transmit Zone" lets you position it flexibly, avoiding radiation in sensitive areas like cockpits while maintaining full forward coverage. It's IPX7 waterproof, shrugging off heavy sprays, and weighs just 17 pounds for easy handling during install.
Safety features shine here: Guard zones alert you to intruders, while MARPA tracking (with a heading sensor) plots courses and predicts collisions. Overlay it on your Garmin chartplotter for a unified view—radar echoes right on your charts for intuitive decision-making.
"Switched to this from an older dome, and the clarity is night and day. No more guessing at echoes." – Experienced offshore angler
Perfect for Everyday Adventures and Serious Pursuits
Recreational skippers love it for weekend getaways, where it excels at low-light navigation and avoiding weekend warrior traffic. Fishermen appreciate the high-res target separation for marking reefs or spotting bait balls. Even commercial operators on smaller vessels trust its network compatibility for seamless integration with multi-station setups.
Timed Transmit mode conserves power during standby, extending battery life on long hauls. From inland lakes to open ocean runs, it adapts without fuss.
Technical Edge You Can Count On
Dimensions fit most t-top or arch mounts (20-inch diameter, 9.75-inch height), powered by 10.5-35 VDC. Minimum range of 20 meters catches close calls that bigger radars miss. Full 8-bit color on compatible displays brings echoes to life.
Frequently Asked Questions
What makes the GMR18 xHD's high-definition different from standard radars?
High-definition tech provides finer target separation and less clutter, using advanced signal processing to distinguish real threats from noise like rain or waves.
Is this radar easy for beginners to use?
Absolutely—intuitive auto-adjust features like Dynamic Gain and Sea Filter handle optimizations, minimizing manual tweaks so new users focus on boating.
Can I install the GMR18 xHD myself?
Yes, with included hardware, template, and cables up to 49 feet. The No Transmit Zone adds mounting flexibility without special tools.
Does it work with other Garmin devices?
It's fully compatible with Garmin Marine Network chartplotters, supporting overlays, dual screens, and shared data across stations.
What's the benefit of Dual Range operation?
View short and long ranges side-by-side independently, great for simultaneous harbor maneuvering and horizon scanning.
How does the remanufactured version compare to new?
Tested to original specs with Garmin's quality assurance, it performs identically but offers better value for budget-conscious boaters.
Garmin GMR18XHD Remanufactured Radar Dome
- 4 kW high-definition 18"" dome radar
- Step up to xHD performance in a radome
- Dynamic new shape for improved look and antenna performance
- No complex user settings, easy to install and start using
- New Dynamic Auto Gain and Dynamic Sea Filter continually adjust to your surroundings to provide optimal performance in varying conditions
Garmins next-generation, 4 kW high-definition GMR 18 xHD dome radar pairs ease of use with advanced open-array features. Its intuitive operation makes modes and settings simple to understand so you can enjoy great performance without a lot of technical know-how.
The GMR 18 xHD delivers higher resolution than our previous generation 18"" dome radars. New Dynamic Auto Gain and Dynamic Sea Filter continually adjust to your surroundings, providing optimal performance in varying conditions. Choose from multiple levels of aggressiveness or use manual gain adjustment. Dual range operation allows fully independent split-screen display of far and close radar views in full 8-bit color (select chartplotters); range of 48 nm. ?No Transmit Zone"" protects areas behind the radar from being radiated while providing full forward-looking radar capability. This makes installation more flexible by providing more suitable installation options on your boat.
| Physical & Performance | |
| Unit dimensions, WxHxD | 20" diameter, 9.75" high (50.8 cm diameter, 24.8 cm high) |
| Weight | 17 lbs (7.7 kg) |
| Waterproof | Yes (IPX7) |
| Antenna sweep | 24/48 rpm (dual rotation) |
| Transmit power | 4 kW |
| Power input | 10.5-35 V DC, 33.5 W |
| Beam width | 5.2 horizontal, 25 vertical |
| Maximum range | 48 nm |
| Minimum range | 20 meters |
| Features & Benefits | |
| Garmin Marine Network™ compatible | Yes |
| 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 |
| Additional | Radar Overlay Support: yes Dual Range Support: yes Dynamic Auto Gain: yes Dynamic Sea Filter: yes Timed Transmit: yes No Transmit Zone: yes |
In the Box
- GMR 18 xHD
- Mounting hardware kit
- Power cable (15 m/49.21 ft)
- Network cable (15 m/49.21 ft)
- Installation instructions
- Mounting template
- Grommet for marine cable
SKU: NVN-1003540
MPN: 010-N0959-00
UPC: 753759122645
Technical specifications
| Brand | Garmin |
| Model | Garmin GMR18 XHD Reman Radar 18 Dome 4Kw |
| SKU / MFR# | 1003540 |
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Frequently asked questions
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