Feature 1Dual Channel: AIS transceiver has two TDMA receivers, which could receive data in two independent channels at the same time. One TDMA transmitter transmits in two independent channels alternately. 2Multi Function: CSTDMA function can avoid and solve communication conflict. With external serial data interface (RS 422, RS 232). Transmit and receive safety message, equipped with SOS safety button. 33 Modes: AIS transceiver supports three operation mode: Carrier sense mode, assigned mode and polled mode. 4GPS Receiver: Internal GPS receiver, can be connected to all devices compatible to GPS and PC, PDA, ECDIS, RADAR, etc. 5Alarm and Indication: AIS receiver supports DSC reception based on TDMA channel, with alarm and LED indication for power, error, time out, status, more practical.SpecificationItem Type: AIS TransceiverMaterial: MetalTransmission Power: 331.5dBmOperating Frequency: 156.025-162.025MHzChannel Bandwidth: 25KHz Channel Interval: 25KHzModulation Mode: 25KHz GMSK (AIS Reception and Transmission), 25KHz AFSK (DSC Reception)Bit Rate: 9600b/s+50ppm (GMSK), 1200b/s+30ppm (FSK)Receiving Sensitivity: Less Than -107dBmError Rate: Less Than 20% .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x AIS Transceiver1 x Connection Cable2 x Fuse