Garmin GMR 18 xHD3 18 Radar Dome
The Garmin GMR 18 xHD3 provides an 18-inch radar dome for compatible Garmin navigation systems. Its enclosed design supports radar target monitoring without an open-array installation, helping boaters identify surrounding vessels and objects while maintaining a compact scanner profile.
Garmin GMR 18 xHD3 18 Radar Dome Specs
| Brand | Garmin |
| Model Name | GMR 18 xHD3 |
| Part Number/SKU | 010-02844-00 |
| Technology Category | High-Definition Magnetron Radome |
| Radar Type | 18" Enclosed Radome |
| Peak Power Output | 4kW |
| Horizontal Beamwidth | 5.2° |
| Max Range | 36 Nautical Miles |
| Target Tracking | Scan Averaging, Dynamic Auto Gain, MARPA |
| Networking Ports | Garmin Marine Network (Ethernet) |
| Voltage Input | 10V - 32V DC |
| Power Draw | Transmit: 33W |
| Waterproofing | IPX7 |
| Weight | 17 lbs (7.7 kg) |
| Country of Origin | Taiwan |
| Standard Warranty | 2-Year Manufacturer Warranty |
Common Question of Garmin GMR 18 xHD3
What type of radar is this?
The Garmin GMR 18 xHD3 is an 18-inch enclosed dome radar. Its radome protects the internal scanner and rotating mechanism while providing a compact installation profile. Confirm compatible Garmin displays, network connections, mounting dimensions, power requirements, and cable provisions before installing the 18-inch Garmin radome.
Why choose this radar dome?
An enclosed dome can simplify installation where space, clearance, or maintenance access is limited. The protected scanner has no exposed rotating array, making it suitable for many smaller vessel configurations. Measure the mounting area and verify Garmin system requirements before commissioning the compact marine radar system.
Which electronics support it?
Compatible Garmin marine electronics are required to control and display information from the GMR 18 xHD3. Confirm the exact multifunction display, software support, network architecture, power input, cable type, and mounting requirements before purchase for dependable Garmin radar integration aboard the vessel.
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