Furuno 3.5 Open Array Antenna

The Furuno 3.5 Foot Open Array Antenna is a replacement radar antenna radiator for compatible Furuno open-array radar scanners. It is an antenna-only component and requires a matching Furuno pedestal, transmitter, radar cable, display, power system, and mounting platform to form a working marine radar installation. The approximately 1,036 mm, or 40.8-inch, array provides a narrow beam pattern for compatible radar systems.

The array has a listed 2.3-degree horizontal beamwidth, 20-degree vertical beamwidth, 70-knot relative-wind rating, and weight of approximately 4 kg. Radar output power, maximum range, rotation speed, tracking functions, and display compatibility depend on the exact paired Furuno radar pedestal and system model. Confirm the correct pedestal and scanner compatibility before purchase.

Radar Integration

This array must be paired with a compatible Furuno open-array radar pedestal and supported display or radar processor. It does not transmit radar energy or provide radar video by itself. Radar-video networking, GPS, heading, ARPA, target tracking, and radar-overlay functions depend on the complete installed Furuno radar architecture.

Confirm the exact radar scanner model, antenna attachment method, pedestal gear drive, compatible display, radar cable, power supply, and required heading source before ordering. Radar is a navigation aid and does not replace a proper lookout, safe speed, official charts, local notices, or collision-regulation compliance.

Warranty and Saltwater Care

Furuno warranty coverage varies by region, distributor, proof of purchase, commissioning status, installation method, and intended use. Confirm the applicable local warranty terms, exclusions, and authorized-service requirements before purchase.

The antenna is designed for marine exposure, but long-term saltwater durability depends on correct installation, drainage, compatible hardware, periodic inspection, and manufacturer-approved maintenance. Rinse salt deposits with fresh water where appropriate, inspect the radiator, attachment hardware, pedestal joint, and mounting platform regularly, and use compatible marine-grade fasteners and isolation methods to reduce galvanic-corrosion risk.

Before Ordering

Confirm the exact compatible Furuno pedestal, radar scanner, display or processor, required radar cable, antenna-mounting arrangement, 3.5-foot rotation clearance, structural platform strength, wind-load requirement, mounting height, personnel and compass-safe-distance requirements, and qualified installation requirements before purchase.