GarminMarine
GMR 434/436 xHD3 Open-Array Radar
An open-array marine radar delivering up to 72 nm range and 4 kW peak transmit power with 24 or 48 rpm antenna rotation.
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Garmin
GMR 18 xHD3 Dome
A 17-inch radome marine radar with a 48 nm maximum range, 4 kW transmit power, and MARPA target tracking when paired with a heading sensor.
- Brand
- Garmin
- Category
- Marine
- Manufacturer
- Garmin website ↗
- Availability
- Enquire for lead time
Technical
Specifications
| Antenna length | 17" (43 cm) |
|---|---|
| Rotation speed | Up to 60 rpm, depending on settings |
| Dimension | 20" x 9.8" (508 x 248 mm) |
| Weight | 7.0 kg |
| Water rating | IPX7 |
| Beam width | 5.2° horizontal, 25° vertical |
| Maximum range | 48 nm |
| Minimum range | 20 meters |
| Radar type | Radome |
| Power input | 11-32 V DC |
| Power consumption (standby) | 15 W |
| Typical power consumption, transmitting (normal mode) | 40 W |
| Transmit power | 4 KW |
| Radar features | Dual range, overlay, dual radar support, auto bird gain, auto gain dynamic, MARPA target tracking (requires heading sensor, sold separately), true echo trails, target size, scan averaging |
Overview
About this product
The GMR 18 xHD3 Dome is a radome-style marine radar with a 17 inch antenna housed in an IPX7-rated dome, spinning up to 60 rpm depending on settings. It transmits at 4 kW with a beam width of 5.2 degrees horizontal and 25 degrees vertical, covering a range from 20 meters out to 48 nm. Features include dual range operation, dual radar support, overlay, auto bird and dynamic gain, true echo trails, target sizing, scan averaging, and MARPA target tracking when paired with a separately sold heading sensor. It runs on 11 to 32 Vdc, drawing 15 W on standby and around 40 W while transmitting in normal mode.
Questions
Frequently asked questions
What is the maximum range of the Garmin GMR 18 xHD3 Dome radar?
The GMR 18 xHD3 Dome has a maximum range of 48 nm and a minimum range of 20 meters, with a rotation speed of up to 60 rpm depending on settings.
Is the GMR 18 xHD3 Dome waterproof?
Yes. It carries an IPX7 water rating.
Does the GMR 18 xHD3 Dome support MARPA target tracking?
Yes, MARPA target tracking is supported as one of its radar features, though it requires a heading sensor, which is sold separately.
What power supply does the GMR 18 xHD3 Dome need?
It runs on 11-32 V DC, drawing 15 W in standby and a typical 40 W while transmitting, with a peak transmit power of 4 KW.
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