Meet the Garmin GMR436 xHD3 4 kW 6' Open-Array Radar — a high‑performance marine radar built for serious captains who demand precision, clarity, and reliability at sea. Its 6' open‑array antenna and 4 kW transmit power deliver clean targets and fast redraw across the range.
-
Antenna Type & Size: Open‑array radar with a 6' (72") antenna for precise detection; horizontal beamwidth 1.1°, vertical beamwidth 23°.
-
Maximum Range: Up to 72 nautical miles for long‑range target detection.
-
Minimum Range: 20 meters for close‑in targets.
-
Beam Width: 1.1° horizontal and 23° vertical for accurate targeting.
-
Rotation Speed: 24 or 48 RPM for fast redraw across ranges.
-
Transmit Power: 4 kW of output power.
-
Power & Electrical: 11–32 V DC input; standby 18 W; transmitting ~55 W typical.
-
Dual Range & Overlay: Split-screen near and far ranges with optional overlay on your chartplotter.
-
Dual Radar Support: Redundancy across displays for reliability.
-
Auto Gain: Dynamic auto gain adjusts for sea conditions to maintain optimal targets.
-
Scan Averaging: Reduces noise and sea clutter for crisper targets in rough seas.
-
Pulse Expansion & Target‑Size Processing: Optimizes object shapes on screen for easier interpretation at all ranges.
-
MARPA Target Tracking: Tracks up to 30 targets for collision avoidance (requires heading sensor).
-
Bird Detection: Detects surface flocks for safer navigation in busy waters.
-
Echo Trails: True trails provide motion history to understand target movement.
-
Shadowless Target Presentation: Clear, ghost‑free targets with historical trails.
-
Programmable Antenna Parking: Park the antenna at programmable angles when not in use.
-
Target Size: Target size processing to aid interpretation on screen.
-
Industrial Durability: IPX6 protection and a 100‑knot wind rating (100 kt with optional voltage converter upgrade).
-
In the Box: GMR xHD3 4 kW pedestal; GMR xHD3 6' antenna; power cable (15 m / 49.21 ft); network cable (15 m / 49.21 ft); mounting hardware kit and template; installation instructions.
-
Designed For: Commercial/offshore vessels requiring robust performance in challenging seas, plus recreational captains valuing precise target detection and reliable collision avoidance.
The GMR436 xHD3 helps you navigate with confidence by delivering clean, actionable targets across long ranges, reducing clutter with scan averaging, and offering dual‑range visibility and chartplotter overlays for streamlined decision making. MARPA tracking (up to 30 targets) and dual radar support provide redundancy and enhanced safety, while shadowless presentation and true echo trails keep you oriented as vessels move. Built for demanding conditions with IPX6 protection and a 100‑knot wind rating (upgradeable), it integrates smoothly into your vessel’s power system (11–32 V DC) and ships with the necessary cables and hardware for straightforward installation.
| General |
| DIMENSION |
6' array: 1938 x 122 x 170 mm (76.5" x 4.8" x 6.7") |
| WEIGHT |
6' array and pedestal: 29.6 kg |
| WATERPROOF |
IPX6 |
| MAX WIND LOAD |
80kt (100kt with optional voltage converter upgrade) |
| ANTENNA LENGTH |
6' array: 72" (183 cm) |
| ROTATION SPEED (RPM) |
24 and 48 rpm |
| BEAM WIDTH |
6' array: 1.1° 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 |
