Digital Antenna 876-SB 4' AIS Antenna

The Digital Antenna 876-SB 4' AIS Antenna is a professional-grade marine receiver designed for serious boaters and commercial operators who demand reliable automatic identification system coverage. Whether you're running a fishing vessel, cruising coastal waters, or managing a fleet, AIS reception is essential for collision avoidance, vessel tracking, and situational awareness.

This 4-foot antenna delivers the reception range and signal clarity needed to reliably decode vessel positions, course data, and safety information from nearby traffic, day or night. Digital Antenna engineered the 876-SB with robust fiberglass construction and optimized impedance matching to capture 161.975 MHz and 162.025 MHz AIS transmissions with minimal signal loss. The vertical element provides superior low-angle radiation patterns, critical for detecting vessels beyond the horizon and in crowded anchorages.

Anglers and cruisers benefit most from positioning the antenna as high as possible and away from metallic obstructions. This antenna pairs easily with any AIS receiver or integrated chartplotter that supports dual-channel reception on the specified frequencies, ensuring optimal performance in various marine environments.