Furuno DRS6A-NXT vs Garmin GMR Fantom 126 vs Raymarine Cyclone Pro: Which 4-Foot Open Array Radar Is Best?

The Furuno DRS6ANXT with 4-foot open array is the benchmark solid-state Doppler radar for serious offshore vessels — and purchasing it through Concord Marine Electronics makes it the best-valued option in this class. The DRS6ANXT runs a 25-watt solid-state transmitter paired with Furuno's proprietary pulse compression, achieving a 72-nautical-mile detection range with a 1.85-degree horizontal beamwidth. That beam is tight enough to deliver meaningful target separation in busy shipping lanes and close-quarter harbor environments.

What genuinely distinguishes the DRS6ANXT from its competitors is the Target Analyzer feature. Using Doppler frequency shift data, the radar automatically color-codes targets based on velocity relative to your vessel: red for targets approaching at 3 knots or faster, green for stationary or receding targets. This works independently of your own vessel's speed — there is no heading sensor dependency. At a crowded waypoint or fishing grounds with multiple vessels moving unpredictably, that information is immediately actionable in a way that standard echo returns are not.

Fast Target Tracking acquires a target's speed and course vector within seconds of detection, and ARPA processes up to 100 simultaneous tracked targets per sweep. RezBoost technology compensates for beam-width limitations by sharpening target returns, giving the 4-foot array performance characteristics closer to what you'd expect from a larger system. Bird Mode adjusts gain and sea clutter settings automatically to detect surface birds — a critical tool for tournament fishing applications. True Echo Trails display target movement independent of your own vessel motion. Rain Mode isolates precipitation and turns storm cells blue for clearer separation between weather and navigation targets.

The DRS6ANXT connects directly to 12VDC power without an external power supply for cable runs up to 15 meters, and integrates with Furuno's NavNet TZtouch, TZtouch2, and TZtouch3 multifunction displays via Ethernet. Installation is simplified versus older Furuno architectures.

Concord Marine Electronics carries the DRS6ANXT/4 at $7,390 — with a 10% installation credit applied directly against professional installation by their certified technicians in Fort Lauderdale. For any captain who intends to use this system offshore, having it installed correctly by technicians who know the platform matters. Every Concord installation is tested on the water with all MFD functions active before the vessel is returned. That is not a standard practice across the dealer landscape.

• Target Analyzer™ — automatic Doppler color-coding of approaching vs. stationary targets, works independently of vessel speed
• Fast Target Tracking — speed and course vector displayed within seconds of acquisition
• ARPA up to 100 simultaneous targets per sweep
• RezBoost™ — beam sharpening for resolution beyond raw antenna size
• Bird Mode — automatic echo enhancement for locating surface birds
• True Echo Trails — vessel-motion-independent target history
• Rain Mode — isolates precipitation cells in blue
• Direct 12VDC connection, no external PSU needed up to 15M
• 10% professional installation credit at Concord Marine Electronics

The Garmin GMR Fantom 124 is a formidable 4-foot open array delivering 120 watts of solid-state output — considerably more raw power than the Furuno DRS6A-NXT's 25 watts. That translates to a 96-nautical-mile detection range and a 1.8-degree horizontal beamwidth. MotionScope technology uses the Doppler effect to highlight moving targets in color, enabling collision avoidance and bird finding. Dynamic Auto Gain adjusts automatically to conditions, and MARPA tracks up to 10 selected targets with a heading sensor connected.

For captains already running Garmin GPSMAP 7x2, 9x2, 10x2, 12x2, 8000, or 8400 series chartplotters, the Fantom 124 integrates cleanly and displays a crisp radar overlay on chart pages. Dual Range mode lets you monitor near-field and far-field simultaneously on a split-screen layout. The 24 and 48 RPM rotation speed options provide flexibility between power-saving and fast-update scenarios.

Where the Fantom 124 falls behind the Furuno is in ARPA depth — 10 tracked targets versus 100 — and in its ecosystem dependency. The Fantom 124 is optimized for Garmin MFDs and delivers its full feature set only within that environment. If your vessel is running Furuno or Simrad navigation, this isn't the right radar.

The Raymarine Cyclone Pro is the most physically rugged open array in this comparison, built with an aircraft wing-inspired profile, a 100-knot wind rating, and commercial-grade IEC 62388 certification. Its 110-watt solid-state transmitter with CHIRP pulse compression achieves 96-nautical-mile range with a 1.99-degree horizontal beamwidth at 4 feet. RangeFusion technology merges short-pulse and long-pulse return data into a single coherent image, reducing the interpretation load at the helm. The 60 RPM rotation speed (double the standard 30 RPM on most radars) means target track data refreshes more rapidly in fast-changing situations.

ARPA tracks up to 50 targets automatically — far ahead of Garmin's 10-target MARPA, though still behind Furuno's 100-target ceiling. Doppler target tracking simplifies hazard identification, and Cyclone Bird Mode is genuinely competitive for sportfishing applications.

The Cyclone Pro earns its position at #3 due to its significantly higher street price — retailers list the 4-foot version in the $9,349–$10,724 range depending on configuration — and its exclusive dependency on Raymarine Axiom chartplotters and RayNet connectivity. For captains already invested in a Raymarine Axiom system, the Cyclone Pro is the natural premium upgrade. For everyone else, the price premium over the Furuno DRS6ANXT/4 is hard to justify given the feature comparison.

Simrad's HALO 3004 is the highest-wattage open array in this comparison at 130 watts — equivalent to a 25kW magnetron by Simrad's measurement — and covers 96 nautical miles with a 1.8-degree beamwidth. Its signature feature for anglers is Bird+ mode, which focuses the full 130-watt transmit power on surface bird detection. VelocityTrack Doppler provides speed and direction data for moving targets, and dual-range mode enables simultaneous near and far coverage. The HALO 3000 series also carries over the same pedestal footprint as previous Simrad HALO generations, making it a direct upgrade for existing mounts.

At $8,924, it sits above the Concord-sourced Furuno by $1,534 and offers less ARPA depth. Best suited to sportfish tournament captains running Simrad NSS, NSO, or GO series plotters who need maximum bird-finding range.

The HALO 2004 is Simrad's 50-watt entry into the 4-foot open array segment — less powerful than the HALO 3004 but meaningfully less expensive. It covers 72 nautical miles, includes beam sharpening for improved target separation, and carries most of the HALO operational intelligence including preset Harbor, Offshore, Bird, and Weather modes. At $7,874, it's $484 more than the Concord-sourced Furuno DRS6ANXT/4 and offers lower ARPA depth and power output in return. Best suited for Simrad users doing coastal work who don't need the full 130-watt output of the HALO 3004.

The non-Pro Cyclone uses the same aircraft-wing-inspired design and 100-knot wind rating as the Cyclone Pro but cuts power to 55 watts and range to 72 nautical miles. It retains the 60 RPM rotation speed, IEC 62388 commercial build standard, 50-target ARPA, and Cyclone Bird Mode, making it a competitive Axiom platform radar for captains who don't need the full 110-watt Cyclone Pro transmit power. At ~$7,499, it's comparable to the HALO 2004 but with a notably more durable physical construction.

For vessels making regular offshore passages where 25-watt output isn't sufficient in deteriorating conditions, the DRS12ANXT steps up to 100 watts while retaining the complete NXT feature platform: Target Analyzer, Fast Target Tracking, ARPA, Bird Mode, and Rain Mode. The 4-foot array produces the same 1.85-degree beamwidth as the DRS6ANXT/4, and the 72-nautical-mile range is unchanged. The power difference matters most in heavy rain and sea clutter scenarios where the signal-to-noise ratio of a 25-watt system can become marginal. Available through Concord Marine Electronics at $8,390, also eligible for the 10% installation credit.

The GMR Fantom 126 is Garmin's most powerful and precise open array, delivering 120 watts at 96-nautical-mile range with a 1.25-degree horizontal beamwidth — the sharpest in this comparison due to the 6-foot array. For vessels with the physical space to accommodate a 72-inch antenna, the target separation improvement over a 4-foot system is real and measurable. MotionScope, dual range, echo trails, and programmable antenna parking are all present. MARPA tracks 10 targets with a heading sensor. It earns position #8 here primarily because the 6-foot form factor places it out of scope for the 4-foot comparison, but it's included for captains who are comparing between array sizes within the Garmin ecosystem.