New Garmin GMR Fantom 256 Antenna and Pedestal

Experience unmatched power and clarity on the water with the Garmin GMR Fantom 256 for sale, the most powerful 6-foot solid-state open-array radar in the consumer marine market. Delivering an impressive 250 watts of transmit power, this radar brings long-range performance and advanced target tracking to serious offshore anglers, cruisers, and commercial operators.

The GMR Fantom 256 offers a detection range of 20 feet to 96 nautical miles, aided by Garmin’s exclusive MotionScope™ technology that highlights moving targets in real time. Built with high-performance pulse compression, automatic MARPA acquisition, and dynamic sea filtering, it gives you a clear picture of your surroundings in all sea conditions. Whether you’re looking to avoid collisions, find flocks of birds, or overlay radar on your chartplotter, this system delivers next-level situational awareness.

What’s Included

• Garmin GMR Fantom 256 antenna and pedestal

• Mounting hardware kit and template

• 15m right-angle power cable

• 15m right-angle network cable

• Voltage converter

• User documentation

Key Features

• 250 Watts of Power: Garmin’s highest-powered radar for unmatched range and precision.

• MotionScope™ Technology: Detects and color-codes moving targets to help you avoid collisions, locate birds, and monitor weather.

• Automatic MARPA Targeting: Automatically acquires and tracks up to 30 moving targets, no user prompting required.

• Scan-to-Scan Averaging: Reduces sea clutter for a cleaner radar image and improved detection.

• Auto Bird Gain: Identifies bird flocks on the water’s surface — a strong indicator of fish below.

• Pulse Compression Technology: Combines high-resolution imaging with enhanced energy for better detection and identification.

• True Echo Trails: Displays fading trails of moving targets for easier identification and tracking.

• Radar Overlay: Overlay radar imagery directly on your chartplotter display with independent range control.

• Dynamic Sea Filter: Automatically adjusts gain based on sea state — calm, medium, or rough.

• Guard Zone Alarm: Triggers alerts when objects enter user-defined safety zones.

• Dual Radar Support: Integrate with another radar for added coverage and redundancy.

• Programmable Antenna Parking: Allows you to set where the antenna parks when turned off for safe stowage.

Garmin GMR Fantom 256 Specifications

General

• Antenna Length: 72″ (182.9 cm)

• Pedestal Dimensions: 16.6″ x 14.3″ x 10.7″ (42.1 x 36.4 x 27.1 cm)

• Full Assembly Dimensions: 15.9″ height x 75.2″ diameter (40.3 cm x 190.9 cm)

• Weight (Array / Pedestal): 16.0 lb (7.3 kg) / 34.7 lb (15.7 kg)

• Waterproof Rating: IPX6

• Maximum Wind Load: 80 knots

• Rotation Speed: 24 and 48 rpm (48 rpm for single range only, MotionScope off, ≤12NM)

• Beam Width: 1.25° horizontal, 23° vertical

• Range: 20’ to 96 NM

• Minimum Range: 6 meters

• Radar Type: Solid-State Open-Array

Electrical

• Power Input: 10-32 V DC

• Transmit Power: 250 watts

Advanced Radar Features

• Dual Range Operation: Yes

• Radar Overlay: Yes

• Dual Radar Support: Yes

• Auto Bird Gain: Yes

• Auto Gain Control: Dynamic

• MARPA Target Tracking: Yes (heading sensor required, sold separately)

• Echo Trails: Yes

• MotionScope Technology: Yes

• Programmable Antenna Parking: Yes

• Target Size & Scan Averaging: Yes

Benefits

• Exceptional Long-Range Detection: Scan out to 96 nautical miles with unmatched 250W output.

• Instant Target Recognition: MotionScope helps identify moving hazards and marine life fast.

• Hands-Free Target Tracking: MARPA auto-acquisition allows you to track multiple moving vessels with zero input.

• Reduce Clutter, See More: Dynamic sea filtering and scan averaging give you a cleaner, clearer view.

• Fish Like a Pro: Auto Bird Gain helps anglers locate productive fishing grounds by spotting seabird activity.

• Enhanced Navigation Awareness: Radar overlay and echo trails improve route planning and real-time adjustments.

• Built for Harsh Conditions: Waterproof, wind-resistant, and ruggedly engineered for offshore reliability.

FAQs

Q: What makes the GMR Fantom 256 different from other radars?
A: It delivers 250 watts of power, the highest in its class, and features advanced tracking, MotionScope, auto MARPA, and dual radar support — all in a 6-foot open-array platform.

Q: Can I use this radar in rough weather?
A: Yes, it is IPX6 waterproof-rated and built to withstand wind speeds up to 80 knots.

Q: Do I need a heading sensor for MARPA tracking?
A: Yes, a heading sensor (sold separately) is required to enable MARPA target tracking functionality.

Q: Can I overlay this radar on my Garmin chartplotter?
A: Absolutely. Radar overlay is fully supported, with independent range control when using dual-range mode.

Q: How does Auto Bird Gain help me?
A: It automatically detects flocks of birds, which typically indicate schools of fish below, helping anglers quickly locate active fishing areas.