The AIT2500 from Digital Yacht is a high‑performance AIS Class B+ transponder with an external GPS antenna, designed for serious sailors and demanding vessel crews. Built around the new Class B+ standard, it uses SOTDMA transmissions to deliver 5W of power (2.5x more than a standard Class B), guaranteed time slots in busy traffic, and faster update rates tailored to your speed. With GPS/GLONASS positioning, you get reliable satellite data wherever you sail.

Key features

• 5W SOTDMA transmissions – up to 2.5x more powerful than regular Class B for better visibility and tracking.
• Guaranteed transmission time slots in busy traffic areas, helping your AIS signals get through when the seas are crowded.
• Faster updates that adapt to your vessel speed, ensuring more timely position and incident reporting.
• Class B+ compatibility while still inter-operating with existing Class A and Class B systems for seamless integration.
• GPS/GLONASS positioning for robust satellite positioning and reliable navigation data.
• Full‑function outputs with NMEA 0183 in/out and multiplex capability, NMEA 2000, and USB data outputs for PC/MAC.
• External GPS antenna supplied for straightforward installation and optimal signal reception.
• Remote TX silence switch option for discreet operation when needed.
• AIS SART alarm option compatible with personal AIS MOB devices for added safety at sea.

Connectivity, installation, and use

The AIT2500 is a versatile AIS transponder that includes NMEA 0183, NMEA 2000, and USB data outputs, making it easy to integrate with existing marine electronics and display systems. It is supplied with a GPS antenna and requires a connection to a VHF antenna or an AIS antenna splitter to enable full AIS functionality.

Why choose the AIT2500

If you’re an ocean sailor, a fast powerboat operator, or manage a smaller non‑mandated commercial vessel, the AIT2500 offers future‑proof Class B+ performance, interoperability with current AIS standards, and flexible data connectivity. It’s the reliable choice for enhanced vessel tracking, safer navigation, and confident on‑the‑water decision making.