Experience unparalleled long-range awareness with the Garmin GMR434 xHD3 4kW 4' Open-Array Radar and Pedestal. Engineered for demanding navigators, this radar delivers crystal-clear targets, faster redraws, and advanced processing that keep you ahead of the weather and other vessels.
Why this radar stands out
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Scan averaging technology filters sea clutter and interference to reveal consistent targets with greater stability.
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Pulse expansion and angular target-size processing optimize on-screen shapes for accurate interpretation at all ranges.
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Split-screen dual-range display shows two independently adjustable ranges on a single radar, with overlay onto your chartplotter for quick reference.
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100-knot wind rating with quiet, reliable open-array drive motor for smooth, quiet operation and rugged performance.
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Long-range capability up to 72 NM on the 4 kW version, with fast redraw at 24 or 48 RPM for crisp targets even at high speed.
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Historical trail displays boats as a trailing path, helping you distinguish moving targets from fixed clutter and identify potential collision threats quickly.
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Target detection enhancements including target size processing and MARPA tracking to monitor and predict vessel movements (requires appropriate sensors sold separately).
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Dynamic sea filtering with auto gain and auto bird gain to adapt to calm, moderate, or rough seas for optimal returns.
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Dual radar support for redundancy and data from multiple sources, ensuring you stay informed even if one source is degraded.
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Overlay and map integration with compatible chartplotters to visualize radar data directly on your charts for intuitive navigation.
Key specifications
- : 4' open-array (52.2" x 4.8" x 6.7"), length 122 cm, weight 27.6 kg with pedestal
- : 24 and 48 RPM for fast redraws
- : 1.8° horizontal, 23° vertical
- : 11-32 V DC, 4 kW transmit power; typical consumption 55 W while transmitting
- : IPX6 waterproof, 80 kt wind load (100 kt with optional voltage converter)
- : Minimum 20 m to maximum 72 NM (4 kW version)
What’s in the box
- GMR xHD3 4 kW pedestal
- GMR xHD3 4' Antenna
- Power cable (15 m / 49.21 ft)
- Network cable (15 m / 49.21 ft)
- Mounting hardware kit and template
- Installation instructions
Designed for reliability and clarity
The Garmin GMR434 xHD3 combines robust open-array performance with intuitive controls and seamless integration with compatible chartplotters. Whether you’re navigating near shore or routing offshore, you’ll appreciate the steady trail, precise target sizing, and scalable display that keeps criticial information in view as conditions evolve. Elevate your marine radar experience with Garmin’s trusted technology and a system built to endure demanding marine environments.
| General |
| DIMENSION |
4' array: 1325 x 122 x 170 mm (52.2" x 4.8" x 6.7") |
| WEIGHT |
4' array and pedestal: 27.6 kg |
| WATERPROOF |
IPX6 |
| MAX WIND LOAD |
80kt (100kt with optional voltage converter upgrade) |
| ANTENNA LENGTH |
4' array: 48" (122 cm) |
| ROTATION SPEED (RPM) |
24 and 48 rpm |
| BEAM WIDTH |
4' array: 1.8° horizontal, 23° vertical |
| MAXIMUM RANGE |
72 nm |
| MINIMUM RANGE |
20 meters |
| RADAR TYPE |
Open-array |
| Electrical Features |
| POWER INPUT |
11-32 V DC |
| POWER CONSUMPTION (STANDBY) |
18 W |
| TYPICAL POWER CONSUMPTION, TRANSMITTING (NORMAL MODE) |
55 W |
| TRANSMIT POWER |
4 kW |
| Radar Features |
| DUAL RANGE |
Yes |
| OVERLAY |
Yes |
| DUAL RADAR SUPPORT |
Yes |
| AUTO BIRD GAIN |
Yes |
| AUTO GAIN |
Dynamic |
| MARPA TARGET TRACKING |
yes (requires heading sensor, sold separately) |
| ECHO TRAILS |
True |
| PROGRAMMABLE ANTENNA PARKING |
Yes |
| TARGET SIZE |
Yes |
| SCAN AVERAGING |
Yes |
