GARMIN GMR 24 xHD3 Radome Radar

Key Specifications and Features
• Type: 24-inch magnetron radome, 4kW output power, maximum range up to 48 nautical miles
• Beam Resolution: 3.7° horizontal × 25° vertical, improving target clarity
• Rotation Speed: Up to 60 RPM, with real-time image updates, suitable for tracking high-speed moving targets
• Advanced Features:
o Scan-Averaging: Filters out sea waves and noise for improved image stability (a first for a Garmin magnetron radome)
o True Echo Trails: Visualizes vessel movement and distinguishes between stationary and moving targets
o Target Sizing: Optimizes display size based on range for improved interpretation
• Dual-Frequency Dual-View Display Mode: Simultaneously displays near- and far-range images on Garmin imagery, supporting radar overlays
• Intelligent Gain, Sea and Noise Filtering, Bird Detection, and MARPA Target Tracking (up to 30 (target, requires a heading sensor)
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Appearance and Performance Specifications
• Dimensions: Approximately 64.5 × 64.3 × 25 cm
• Weight: Approximately 8.7 kg (≈ 19.2 lbs)
• Power Requirements: 11–32 V DC, approximately 15 W standby power, approximately 40 W transmitting, 7.5 A fuse
• Waterproof Rating: IPX7 (can be temporarily submerged in water)
• Compass Safety Distance: At least 95 cm (approximately 3.1 feet) to avoid interference
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Advantages and Applications
• Provides performance similar to open antenna radar, but with a more compact and easy-to-install housing design
• Ideal for fishing: Supports bird flock detection and low-noise imaging for tracking schools of fish and baitfish
• Smooth image updates even from high-speed vessels (60 RPM high-speed scanning)
• User feedback has been positive. For example, one angler commented:
"I just installed this new Garmin xHD3 and am very impressed... I can detect flocks of birds at very long distances, and the echo trails are very useful."
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Pre-Purchase Notes
• Although the maximum range is indicated at 48 nautical miles, the actual effective range may be shorter, especially in noisy conditions or at low altitudes.
• Installation must comply with Garmin safety regulations, such as restrictions on antenna-to-person distance and mounting height.
• Requires use with a compatible Garmin charting system (Marine Network or BlueNet), which is sold separately.
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Summary
The GMR 24 xHD3 is a high-performance radar dome that combines fast updates, advanced image processing, enhanced target recognition, and fishing support features. It is ideal for small and medium-sized boats, especially those who require real-time radar performance and bird/fish detection. If you require longer-range detection or use in extreme environments, consider models with open antennas for comparison.