em-trak B951 Class B AIS Transceiver - 5W SOTDMA [430-0009]B951 Class B AIS Transceiver 5W SOTDMA **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 the 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. The B951 is a high power (5W SOTDMA) Class B transceiver,