**As the FCC requires all units sold in the US to be programmed by a qualified technician. Please submit the form below for programming at time of purchase. A copy of the MMSI Registration or FCC Ship Station License is required along with the vessel master or owner's signature on the completed programming form. **Click here to download form.AIT2500 Class B+ 5W SOTDMA AIS with GPSDigital Yacht have a range of Class B+ AIS transponders. Class B+, a standard, utilizes SOTDMA format transmissions w