<p><strong>B951 Class B AIS Transceiver - 5W SOTDMA</strong></p><p>**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.**</p><p><a href="http://productimageserver.com/banners/ClassB.pdf" rel="noopener noreferrer" target="_blank">Click here to download form</a>.</p><p>The B951 is a high-power (5W SOTDMA) Class B transceiver, delivering advanced performance and ultimate reliability through em-trak's next-gen technology. Small and durable, this trusted transceiver processes all AIS transmissions in real-time, with increased range and transmission priority so you always have the complete picture and the time to respond, even in the busiest waters.</p><p>em-trak's flexible, intelligent connectivity means the B951 can be paired to any chart-plotter and its next-gen GPS receiver and the antenna are already integrated inside the device to provide best-in-class, ultra-low power consumption, and performance. em-trak's unique FLEXI-FIT® bracket system completes the package and ensures easy installation.</p><p><strong>Features:</strong></p><ul><li>Certified AIS Class B – 5W SOTDMA</li><li>Global certification - USCG / FCC / Canada / Europe</li><li>SRT-AIS™ Transceiver Engine for superlative proven performance</li><li>FLEXI-FIT™ bracket system for easy, convenient, and secure installation</li><li>Internal high-performance GPS receiver and antenna (external antenna optional)</li><li>Water, pressure spray, and damp proof (IPx6, IPx7 certified)</li><li>Protected from vibration, shock, and extreme temperatures</li><li>Small and lightweight</li><li>Ultra-low power consumption – best in class</li><li>NMEA 0183 & NMEA 2000</li><li>Automated health and performance monitoring</li><li>Silent mode (transmit-off) function</li><li>Enhanced RF screening to protect against electromagnetic interference</li><li>Built-in power surge protection</li></ul><p><strong>Physical & Environmental Specifications:</strong></p><ul><li>Size (H x W x D): 150 x 115 x 45mm</li><li>Weight: 375kg</li><li>Operating temperature: -25°C to +55°C</li><li>Storage temperature: -25°C to +70°C</li><li>Ingress protection: IPx6 and IPx7</li></ul><p><strong>Electrical Specifications:</strong></p><ul><li>Supply voltage: 12V or 24V DC</li><li>Supply voltage range: 9.6V - 31.2V DC</li><li>Average current (at 12V): 135mA</li><li>Peak current: 2.5A</li><li>Average power consumption (at 12V): 1.6W</li><li>Galvanic isolation: NMEA 0183 inputs only, NMEA 2000, VHF antenna port</li></ul><p><strong>Connectors:</strong></p><ul><li>VHF antenna: SO-239</li><li>GNSS: TNC</li><li>Power: 12-way circular multipole</li><li>NMEA 2000: 5-way Micro-C connector</li><li>USB: USB Micro-B</li></ul><p><strong>Data Interfaces:</strong></p><ul><li>NMEA 0183: 2 x bi-directional ports</li><li>NMEA 2000: NMEA 2000 Ed 3.101, LEN=1</li><li>USB: PC virtual com port for NMEA 0183 data</li></ul><p><strong>Standards Compliance:</strong></p><ul><li>AIS standards: IEC 62287-1 Ed. 3, ITU-R M.1371.5</li><li>Product safety standards: EN60950-1 2006 +A11:2009 +A1:2010 +A12:2011 +A2:2013 EN62311:2008</li><li>Environmental standards: IEC 60945 Ed. 4</li><li>Serial data interface standards: IEC 61162-1 Ed 5.0, IEC 61162-2 Ed 1.0</li><li>NMEA 2000: NMEA 2000 Ed 3.101</li><li>GNSS performance standards: IEC 61108-1 Ed 2.0, IEC 61108-02 Ed 1.0</li></ul><p><strong>GNSS:</strong></p><ul><li>Systems supported: GPS, GLONASS, BeiDou, Galileo (two of any combination, three including GPS, Galileo)</li><li>Channels: 72</li><li>Internal/external antenna: Internal or optional external antenna</li><li>Time to first fix from the cold start: 26s</li></ul><p><strong>VHF Transceiver:</strong></p><ul><li>VDL access scheme: SOTDMA</li><li>Operating frequency: 156.025MHz - 162.025MHz</li><li>Channel bandwidth: 25kHz</li><li>Receivers/transmitters: 2 x receivers, 1 x transmitter</li><li>AIS receiver sensitivity (20% PER): -111dBm</li><li>AIS transmitter power: 5W (+37dBm)</li></ul><p><strong>User Interface:</strong></p><ul><li>Indicators: Power, transmit timeout, error, silent mode</li></ul><p><strong>In the Box:</strong></p><ul><li>1 x AIS transceiver</li><li>1 x Power and data cable (2M)</li><li>1 x FLEXI-FIT™ mounting bracket</li><li>Complete with screws & optional fixing tape</li></ul><strong>This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.</strong> <!--- cis2:m2lumJ1t --->