Glomex 4' Universal AIS Antenna - 3dB w/FME Termination

The Glomex 4' Universal AIS Antenna with 3dB gain and FME termination is a critical component for any serious boater or commercial vessel operator who relies on Automatic Identification System (AIS) technology for navigation safety and vessel tracking. After years on the water, reliable AIS reception has become non-negotiable—it's how you see other traffic in fog, darkness, and congested shipping lanes. This universal antenna installs on nearly any vessel platform and integrates seamlessly with existing AIS receivers, making it the go-to choice for retrofit upgrades and new builds alike.

The 4-foot vertical whip design with 3dB gain provides the optimal balance between reception range and physical footprint—tall enough to clear cabin structures and mast clutter that would degrade signal, yet compact enough to mount on sportfish boats, cruisers, and working vessels without creating excessive windage or aesthetic compromise. The FME termination is the industry standard for AIS systems, offering secure, weather-resistant connectivity that won't corrode or loosen in the harsh marine environment. Glomex's engineering ensures consistent 360-degree azimuth coverage, allowing you to detect Class A and B vessels at distances that give you ample reaction time in crowded waters.

This antenna suits recreational anglers operating offshore, commercial fishing operators, sailing crews, and maritime professionals who demand reliable vessel identification without the complexity of dual-antenna systems. The lightweight 1.15-pound construction minimizes load on cabin tops and flying bridges, and the stainless-steel construction withstands saltwater exposure year-round. Installation requires only an FME-compatible receiver and routing of the coaxial feed through existing cable paths—no specialized tools or professional installation necessary for experienced boaters familiar with marine electronics.