Digital Antenna 876-SW 4' AIS Antenna White 4.5dB Gain 800 Series

The Digital Antenna 876-SW is a professional-grade 4-foot AIS (Automatic Identification System) antenna designed to meet exacting frequency requirements for marine navigation and safety. Part of the 800 GOLD Series, this antenna delivers 4.5dB gain with an exceptional 1.5:1.0 SWR ratio across 159-162 MHz, ensuring reliable performance with all AIS transponders.

Key Features:

• 4-foot length with 4.5dB gain for superior signal reception
• Low 1.5:1.0 SWR ratio optimized for 159-162 MHz AIS frequency range
• Powerful brass radiators with soldered connections for durability
• Power-directing ferrite choke bead for enhanced performance
• High-gloss urethane finish for weather resistance
• 316 stainless steel double female ferrule for mounting 1"-14 threaded base
• Quality SO-239 female connector (UHF female)
• Made in USA and hand-tuned for maximum performance

What's Included:

• AIS antenna with white finish
• 316 stainless steel double ferrule mounting hardware
• SO-239 female connector

Installation Notes: Cable not included—use VHF/AIS cables with two DA645 connectors for proper installation. The stainless steel ferrule accepts standard 1"-14 threaded bases for versatile mounting options.

Designed to meet USCG AIS requirements for commercial vessels, this antenna offers unsurpassed durability and performance. Each unit is assembled, tested, and tuned by hand to ensure optimal signal quality for reliable vessel identification and collision avoidance.