Vesper Cortex M1- Full Class B SOTDMA SmartAIS Transponder w/Remote Vessel Monitoring - Works Worldwide [010-02815-20]**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. Cortex M1 Full Class B SOTDMA SmartAIS Transponder with Remote Vessel Monitoring Works Worldwide Full Class B