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Know what’s coming. MotionScope technology shows targets in color as they move toward you or away.GMR Fantom brings the power. 50 watts of it, actually.Get high resolution without wasting energy, thanks to pulse compression.Add even more detail to your maps with radar overlay — even in a split-screen view.
Original price was: $3,599.00.$3,500.00Current price is: $3,500.00.
The Garmin GMR Fantom 124 Open Array Radar is a high-power open-array marine radar designed to provide long-range target detection, navigation awareness and improved visibility of surrounding traffic. With a maximum range of up to 96 nautical miles, dual-range operation, radar overlay, MotionScope and advanced target-tracking features, it is suited to larger boats and demanding marine navigation applications.
The Fantom 124 combines a 48-inch antenna with a robust pedestal and supports 24 or 48 RPM rotation depending on operating conditions. If you are comparing radar equipment for your vessel, explore our marine radar collection.
| Brand | Garmin |
|---|---|
| Model | GMR Fantom 124 |
| Radar Type | Open-array marine radar |
| Maximum Range | 96 nautical miles |
| Minimum Range | 6 metres |
| Antenna Length | 48 inches (121.92 cm) |
| Transmit Power | 120W |
| Rotation Speed | 24 or 48 RPM |
| Beam Width | 1.8° horizontal; 23° vertical |
| Waterproof Rating | IPX6 |
| Maximum Wind Load | 80 knots |
| Power Input | 10–32 V DC |
| Array Weight | 11.4 lb (5.2 kg) |
| Pedestal Weight | 34.7 lb (15.7 kg) |
The GMR Fantom 124 is designed for long-range marine radar coverage while retaining features useful for close-range navigation. Its listed operating range extends from 6 metres to 96 nautical miles, giving operators flexibility when monitoring nearby objects as well as distant targets.
Dual-range operation allows different ranges to be monitored, while radar overlay can combine radar information with compatible navigation displays. MotionScope is designed to highlight moving targets, helping operators distinguish traffic movement from stationary surroundings.
The Garmin GMR Fantom 124 supports MARPA target tracking when a suitable heading sensor is installed. Other listed functions include echo trails, target-size adjustment and dynamic automatic gain. These features can help organize radar information and improve situational awareness when navigating in changing conditions.
The system also supports dual-radar configurations and programmable antenna parking. Buyers should confirm display, heading-sensor and networking compatibility before ordering, particularly when integrating the radar into an existing marine electronics system.
The pedestal dimensions are listed as 16.6 × 14.3 × 10.7 inches (42.1 × 36.4 × 27.1 cm). The complete assembly is approximately 15.9 inches high with a 51.8-inch diameter. The 48-inch antenna measures 121.92 cm in length.
The array weighs 11.4 lb (5.2 kg), while the pedestal weighs 34.7 lb (15.7 kg). The system is rated IPX6 and has a maximum wind-load specification of 80 knots. Before installation, confirm that the vessel’s mounting structure can safely support the complete assembly and that sufficient clearance is available for antenna rotation.
The GMR Fantom 124 uses a 10–32 V DC power input and has a listed transmit power of 120W. Installation should account for the vessel’s available electrical capacity, cable routing and the requirements of the connected chartplotter or multifunction display.
MARPA operation requires a heading sensor sold separately according to the product specifications. When integrating the radar with other onboard electronics, confirm compatibility and installation requirements before purchase.
When comparing marine radar systems, consider maximum and minimum detection ranges, antenna length, rotation speed, beam width, target-tracking functions, radar overlay, display compatibility and physical installation requirements. A larger open-array radar can be appropriate when long-range detection and broader marine situational awareness are priorities.
Compare the Garmin GMR Fantom 124 with other options in our marine radar category. If you need help reviewing equipment requirements for your vessel, contact Performance Engines through our Contact Us page.
Performance Engines offers marine engines and marine equipment for buyers comparing products by model, specifications and application. Before ordering the Garmin GMR Fantom 124, review the antenna dimensions, vessel mounting requirements, power requirements and compatibility with your existing marine electronics to ensure the selected radar configuration is appropriate for your boat.
