Digital Yacht AIT2500 Class B+ 5W AIS Transponder w/GPS

The Digital Yacht AIT2500 (Class B+, 5W SOTDMA AIS with GPS) uses SOTDMA format transmissions offering 5W power output — 2.5x more powerful than a regular Class B — with a guaranteed transmission time slot in busy traffic areas. It is designed for ocean sailors, fast power boats, and smaller non-mandated commercial vessels wanting future-proof satellite tracking performance.

This full-function SOTDMA AIS transponder provides NMEA 0183, NMEA 2000, and USB data outputs, still inter-operating with existing Class B and Class A systems. It ships with a GPS antenna and requires connection to a VHF antenna or a suitable VHF-AIS antenna splitter. Note: FCC requires all units sold in the US to be programmed by a qualified technician, with MMSI registration or FCC Ship Station License required. Browse more options in our instruments & compasses category.

Key Features: 5W SOTDMA, NMEA 0183/2000/USB outputs, includes GPS antenna, guaranteed transmission time slot.

Frequently Asked Questions

How much more powerful is this than a regular Class B? 2.5x more powerful, at 5W SOTDMA output.

Does this transponder work with existing AIS systems? Yes, it inter-operates with existing Class B and Class A systems.

What is required for FCC compliance in the US? Professional programming by a qualified technician, plus MMSI registration or FCC Ship Station License.