SAS-600 Class B SOTDMA AIS Transceiver | 5-wattThe SAS 600 is a fully certified, 5 watt SOTDMA class B AIS transceiver with the same network priorities as commercial class A AIS transceivers. The five watt transmitter, which is more than traditional class B transceivers, allows your vessel to be seen at longer ranges. SOTDMA class A priorities ensure your vessel will always transmit and be seen in congested commercial ports. Built in 802. 11 b g n long range WIFI allows AIS data to be sent to any