Em-Trak B921 Class B 2W AIS Transceiver
637 $ net price (non-EU countries)
Karol Łoś
Product Manager
/ 
+48603969934
+48507526097
[email protected]
Description
Em-Trak B921 High-Performance Class B AIS Transceiver
The Em-Trak B921 AIS Transceiver is a compact, lightweight device offering superior AIS transmission and reception capabilities. It ensures you receive more AIS data and see more targets at maximum range, all while maintaining minimal power consumption.
Equipped with cutting-edge intelligent connectivity, integrated next-gen GPS, and the innovative FLEXI-FIT® bracket system, the Em-Trak B921 guarantees a safe, secure, and straightforward installation.
While the B921 includes a built-in GPS antenna, it is recommended to opt for the GPS100 remote antenna if installation is obstructed by metalwork or cables, or if the hull is constructed from metal.
Key Features:
- Certified AIS Class B – 2W CSTDMA
- Global Certification – USCG / FCC / Canada / Europe
- Superlative performance with SRT-AIS™ transceiver engine
- Easy and secure installation with FLEXI-FIT™ bracket system
- Integrated high-performance GPS receiver & antenna (external antenna optional)
- Water, pressure spray, and damp proof with IPx6 & IPx7 ratings
- Ruggedized to endure vibration, shock, and extreme temperatures
- Small and lightweight design
- Ultra-low power consumption – best in class
- Compatible with NMEA0183 & NMEA2000
- Automated health and performance monitoring
- Silent Mode (transmit-off) function
- Enhanced RF screening for electromagnetic interference protection
- Built-in power surge protection
Physical & Environmental Specifications:
- Size: 150 x 115 x 45mm
- Weight: 375g
- Operating temperature: -25°C to +55°C
- Storage temperature: -25°C to +70°C
- Ingress protection: IPx6 and IPx7
Electrical Specifications:
- Supply voltage: 12V or 24V DC
- Voltage range: 9.6V - 31.2V DC
- Average current (at 12V): 135mA
- Peak current: 2A
- Average power consumption (at 12V): 1.6W
- Galvanic isolation: NMEA 0183 inputs only, NMEA 2000, VHF antenna port
Connectors:
- VHF antenna: SO-239
- GNSS: TNC
- Power/NMEA 0183/silent mode: 12 way circular multipole
- NMEA 2000: 5 way Micro-C connector
- USB: USB Micro-B
Data Interfaces:
- NMEA 0183: 2 x bi-directional ports
- NMEA 2000: NMEA 2000 Ed 3.101, LEN=1
- USB: PC virtual com port for NMEA 0183 data
Standards Compliance:
- 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
GNSS:
- 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
VHF Transceiver:
- VDL access scheme: CSTDMA
- Operating frequency: 156.025MHz - 162.025MHz
- Channel bandwidth: 25kHz
- Receivers/transmitters: 2 x receivers, 1 x transmitter
- AIS receiver sensitivity (20% PER): -111dBm
- AIS transmitter power: 2W (+33dBm)
User Interface:
- Indicators: Power, transmit timeout, error, silent mode
