B921 Class B AIS Transceiver - 2W CSTDMA**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 B921 is a 2W CSTDMA Class B AIS transceiver, delivering em-trak's advanced performance and reliability through next-gen technology. Small and durable, this trusted transceiver processes all AIS transmissions in real-time, even at the range limit, so you always have the complete picture and the time to respond.em-trak's intelligent connectivity means the B921 can be connected to any chart-plotter and comes equipped with integrated GPS technology and best-in-class, ultra-low power consumption. Installation is also simplified with our unique FLEXI-FIT® bracket system to have you up and running in no time at all.Features:Certified AIS Class B – 2W CSTDMAGlobal certification - USCG / FCC / Canada / EuropeSRT-AIS™ Transceiver Engine for superlative proven performanceFLEXI-FIT™ bracket system for easy, convenient, and secure installationInternal high-performance GPS receiver and antenna (external antenna optional)Water, pressure spray, and damp proof (IPx6, IPx7 certified)Protected from vibration, shock, and extreme temperaturesSmall and lightweightUltra-low power consumption – best in classNMEA 0183 & NMEA 2000Automated health and performance monitoringSilent mode (transmit-off) functionEnhanced RF screening to protect against electromagnetic interferenceBuilt-in power surge protectionPhysical & Environmental Specifications:Size (H x W x D): 150 x 115 x 45mmWeight: 375kgOperating temperature: -25°C to +55°CStorage temperature: -25°C to +70°CIngress protection: IPx6 and IPx7Electrical Specifications:Supply voltage: 12V or 24V DCSupply voltage range: 9.6V - 31.2V DCAverage current (at 12V): 135mAPeak current: 2AAverage power consumption (at 12V): 1.6WGalvanic isolation: NMEA 0183, NMEA 2000, VHF antenna portConnectors:VHF antenna: SO-239GNSS: TNCPower: 12-way circular multipoleNMEA 2000: 5-way Micro-C connectorUSB: USB Micro-BData Interfaces:NMEA 0183: 2 x bi-directional portsNMEA 2000: NMEA 2000 Ed 3.101, LEN=1USB: PC virtual com port for NMEA 0183 dataStandards Compliance:AIS standards: IEC 62287-1 Ed. 3, ITU-R M.1371.5Product safety standards: EN60950-1 2006 +A11:2009 +A1:2010 +A12:2011 +A2:2013 EN62311:2008Environmental standards: IEC 60945 Ed. 4Serial data interface standards: IEC 61162-1 Ed 5.0, IEC 61162-2 Ed 1.0NMEA 2000: NMEA 2000 Ed 3.101GNSS performance standards: IEC 61108-1 Ed 2.0, IEC 61108-02 Ed 1.0GNSS:Systems supported: GPS, GLONASS, BeiDou, Galileo (two of any combination, three including GPS, Galileo)Channels: 72Internal/external antenna: Internal or optional external antennaTime to first fix from the cold start: 26sVHF Transceiver:VDL access scheme: CSTDMAOperating frequency: 156.025MHz - 162.025MHzChannel bandwidth: 25kHzReceivers/transmitters: 2 x receivers, 1 x transmitterAIS receiver sensitivity (20% PER): -111dBmAIS transmitter power: 2W (+33dBm)User Interface:Indicators: Power, transmit timeout, error, silent modeIn the Box:1 x AIS transceiver1 x Power and data cable (2M)1 x FLEXI-FIT™ mounting bracketComplete with screws & optional fixing tape