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The EM-Trak AIS B921 Class B Tranceiver - GNSS Receiver, NMEA 2000, NMEA 0183 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 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.
Size (WxHxD) | 150 x 115 x 45mm |
Weight | 425g |
Operating Temperature | -25 C to +55 C |
Storage temperature | -25 C to +70 C |
Ingress protection | IPx6 and IPx7 |
Supply Voltage | 12V or 24V DC |
Supply Voltage Range | 9.6V 31.2V DC |
Average Current (At 12V) | 280mA |
Average Current (At 12V) (Wireless Off) | 245mA |
Peak Current | 2A |
Average Power Consumption (At 12V) | 3.4W |
Average Power Consumption (At 12V) (Wireless Off) | 2.9W |
Galvanic Isolation | NMEA 0183 inputs only, NMEA 2000, VHF antenna port |
VHF Antenna | SO-239 |
VHF Radio | SO-239 |
GNSS | TNC |
Power/NMEA 0183/Silent Mode | 12 way circular multipole |
NMEA 2000 | 5 way Micro-C connector |
USB | USB Micro-B |
NMEA 0183 | 2 x bi-directional ports |
NMEA 2000 | NMEA2000 Ed 3.101, LEN1 |
USB | PC virtual com port for NMEA0183 data |
Wi-Fi | IEEE 802.11 (a/b/g), client and access point mode supported (2 connections in access point mode) |
Bluetooth | BT Classic 4.0, 7 concurrent connections |
AIS Standards | IEC 62287-1 Ed. 3. ITU-R M.1371.5 |
Product Safety Standards | EN60950-1 2006 +A11:2009 +A1:2010 +A12:2011 +A2:2013 EN62311:2008 |
Environmental Standards | IEC 60945 Ed. 4 |
Serial Data Interface Standards | IEC 61162-1 Ed 5.0. IEC 61162-2 Ed 1.0 |
NMEA 2000 | NMEA 2000 Ed 3.101 |
GNSS Performance Standards | IEC 61108-1 Ed 2.0. IEC 61108-02 Ed 1.0 |
Systems Supported | GPS, GLONASS, BeiDou, Galileo (two of any combination, three including GPS, Galileo) |
Channels | 72 |
Internal/External Antenna | Internal or optional external antenna |
Time To First Fix From Cold Start | 26s |
Free Shipping | No |
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