Garmin

Garmin GMR 24 xHD3 24" Radar Dome

SKU: 101247 · UPC: 753759320751 · MPN: 010-02842-00
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02 · Overview

Garmin GMR 24 xHD3 24" Radar Dome — Product description

Enhance Your On-Water Safety with Cutting-Edge Detection

Imagine navigating through foggy mornings or bustling harbors with crystal-clear visibility of surrounding vessels, obstacles, and even distant weather cells. The Garmin GMR 24 xHD3 delivers that confidence, packing open-array-level performance into a compact 24-inch dome. Boaters from weekend cruisers to serious offshore adventurers choose this radar for its ability to cut through clutter and reveal what's ahead, ensuring safer passages and more enjoyable outings.

Whether you're dodging unlit boats at dusk or scanning for baitfish schools during a tournament, this radar's high-resolution imaging transforms your chartplotter into a vigilant lookout. Its 4 kW power punches out to 48 nautical miles, while smart processing keeps the display sharp and actionable.

Smart Technologies That Outperform in Real Conditions

At the heart of this dome lies innovative signal processing that rivals larger systems. Scan-averaging smooths out wave bounce and interference, painting steady pictures of fixed targets like buoys or rocks amid choppy seas. Mariners report fewer false alarms, letting you focus on genuine threats.

Angular target-size adjustment refines object shapes across scales, making small craft or debris stand out vividly—crucial when sizing up collision risks from afar. Paired with a faster-scanning antenna hitting up to 60 RPM, updates refresh quickly, matching the pace of busy waterways.

  • True Echo Trails: Watch vessels leave realistic paths on-screen, stripping away your boat's motion for instant threat assessment.
  • Dual-Range Split-Screen: Monitor short-range traffic alongside long-range horizons simultaneously, overlaying both on charts for unmatched situational awareness.
  • Dynamic Auto Gain and Sea Filter: Adapts on the fly to calm bays, rough swells, or open ocean, dialing in optimal clarity without constant tweaks.

For anglers, auto bird gain highlights surface flocks signaling fish below, turning your setup into a productivity booster without extra gear.

Seamless Garmin Ecosystem Integration

This radar shines brightest when networked with compatible Garmin multifunction displays. Overlay radar imagery directly on charts, blending live returns with vector maps for intuitive navigation. Dual-radar support means redundancy across multiple stations—pull feeds independently to keep every screen informed.

MARPA tracking locks onto up to 30 targets (with a heading sensor), calculating course, speed, and CPA to preempt close quarters. Add guard zones for audible alerts on intruders, and variable range markers for precise bearings—tools that pros swear by for night runs or congested anchorages.

High antenna gain and a tight 3.7° horizontal beamwidth deliver pinpoint resolution, spotting targets others blur into noise.

Rugged Build for Demanding Marine Environments

Crafted to IPX7 standards, this 7 kg dome shrugs off heavy spray and submersion, with a quiet drive motor that won't disrupt cockpit conversations. Power it from 11-32 VDC sources, sipping just 15 W on standby and 40 W transmitting—efficient for extended voyages.

Installation simplifies with included 15 m power and network cables, mounting hardware, and templates. Position it high for optimal sweep, and you're scanning in minutes. Routine checks on connections keep it humming season after season.

Proven Performance Across Boating Scenarios

Sailors threading tricky inlets praise its clutter rejection in rain squalls. Powerboaters crossing shipping lanes value the rapid redraws during high-speed maneuvers. Fishermen chasing dawn patrols leverage bird mode to zero in on hot spots before competitors arrive.

Even in low-visibility fog, the minimum 20-meter close-in range catches pot markers or swimmers early. It's not just radar—it's your electronic eyes, earning trust from coastal hoppers to bluewater explorers.

Frequently Asked Questions

What makes the GMR 24 xHD3 stand out from standard dome radars?

It incorporates advanced open-array features like scan-averaging and true echo trails in a compact package, delivering superior clutter rejection and target discrimination for safer, clearer navigation.

Can this radar help with fishing?

Yes, auto bird gain detects surface flocks that often indicate baitfish underneath, helping anglers locate productive waters efficiently.

Does it support dual-screen viewing?

Absolutely—dual-range mode provides split-screen images with independent controls, plus chart overlays for comprehensive monitoring.

How does it handle rough seas?

Dynamic sea filters and auto gain automatically adjust for calm, medium, or rough conditions, minimizing clutter from waves.

Is installation straightforward for DIY boaters?

Yes, it includes all necessary cables, hardware, and templates, making setup accessible with basic tools and marine know-how.

What’s the maximum detection range?

Up to 48 nautical miles, with excellent resolution thanks to its narrow beamwidth and high gain.

Does it track multiple targets?

MARPA supports tracking up to 30 targets, providing speed, course, and collision predictions (requires a heading sensor).

GMR 24 xHD3 24" Radar Dome

Loaded with advanced features typically found on open arrays, this powerful 24" dome radar offers superior traffic, obstacle, and weather detection for peace of mind on the water.

Features:

  • 4 KW power output, 48 nautical mile max range
  • Scan-averaging technology
  • Improved target-size processing
  • Split-screen dual-range display
  • Bird detection
  • Quiet dome-drive motor

Scan Averaging Technology 

A first for Garmin magnetron radar, scan averaging helps filter out sea clutter and interference to enhance the detection and display of consistent targets.

Angular Target-Size Adjustment

Pulse expansion and angular target-size processing techniques optimize on-screen object shapes for better interpretation at all range scales.

Faster Scanning Antenna 

Rotation speeds up to 60 rpm improve the redraw rate for faster target updates.

True Echo Trails

A historical "trail" of boats on the water is displayed on the screen, removing relative motion influences to help you quickly identify moving targets and potential collision threats.

Dual Range with Overlay

A single radar antenna is capable of providing split-screen, side-by-side images on your compatible chartplotter, with independent range settings and controls for both close and long range. Overlay either or both ranges on a chart.

Dynamic Auto Gain

Gain automatically adjusts levels to optimum settings for harbors, near shore, and offshore in open waters.

Radar Overlay

See overlaid images on your chartplotter’s map screen (with appropriate sensors, sold separately).

High-Resolution Radar

Pick out targets at a distance thanks to a narrow horizontal beamwidth and high antenna gain.

Dual-Radar Support

This provides redundancy and allows each display unit to pull data from different sources.

Dynamic Sea Filter

Radar gain automatically adjusts sea clutter for calm, medium, and rough sea conditions.

Auto Bird Gain

Locate flocks of birds at the water’s surface, where baitfish are also likely to be found.

MARPA Target Tracking

Track up to 30 targets to help avoid collisions (with appropriate sensors, sold separately).

Guard Zone

Set the safety zone and receive an alarm when an object enters the zone.

Range and Bearing Cues

Variable range markers and electronic bearing lines allow rapid measurements of distance and bearing to vessels and land.

In the Box:

  • GMR 24 xHD3 dome radar
  • Power cable (15 m/49.21 ft)
  • Network cable (15 m/49.21 ft)
  • Mounting hardware kit and template
  • Installation instructions

General:

  • Dimensions: 25.4" x 9.8" (64.5 cm x 24.9 cm)
  • Weight: 7.0 kg
  • Waterproof: IPX7
  • Antenna length: 17" (43 cm)
  • Rotation Speed (RPM): Up to 60 RPM, depending on settings
  • Beam Width: 3.7° horizontal, 25° vertical
  • Maximum Range: 48 nm
  • Minimum Range: 20 meters
    • Radar Type: Radome

Electrical Features:

  • 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: 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
  • Target Size: Yes
  • Scan Averaging: Yes



SKU: NVN-101247
MPN: 010-02842-00
UPC: 753759320751
03 · The numbers

Technical specifications

BrandGarmin
ModelGarmin GMR 24 xHD3 24" Radar Dome
SKU / MFR#101247

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04 · Before you buy

Frequently asked questions

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05 · Customer voices

Customer reviews