Em-Trak B921 Class B 2W AIS Transceiver
Introducing the em-trak B921 Class B 2W AIS Transceiver, a reliable and high-performance solution for enhancing your vessel's safety and communication capabilities. As a part of the B92x series, this standard power AIS transceiver offers 2W transmission power and seamless compatibility with both NMEA0183 and NMEA2000 systems. With its easy-to-install design, the B921 simplifies your navigation experience while providing crucial information about surrounding vessels, improving situational awareness and overall safety on the water. Choose the em-trak B921 (Part Number 430-0001) for dependable, cutting-edge maritime communication technology.
637 $ net price (non-EU countries)
Karol Łoś
Product Manager
/ 
+48603969934
+48507526097
[email protected]
Description
The B921 is a standard power (2W CSTDMA) AIS Class B transceiver that is small, light-weight, yet delivers the very best AIS receive and transmit performance so you see more AIS information and targets at maximum range – all achieved with the least power consumption.
With built-in intelligent connectivity, integrated next-generation GPS and the unique FLEXI-FIT® bracket system, safe and secure installation could not be easier.
The B920 series AIS transceivers feature a built-in GPS antenna. In most cases this will work fine as long as the unit is mounted upright and not directly below metalwork or cables. If your installation is either compromised by metalwork or cables, or your hull is built from metal, then the GPS100 remote antenna is recommended. Please select this from the related products listed below.
Features:
- Certified AIS Class B – 2W CSTDMA
- Global Certification – USCG / FCC / Canada / Europe
- SRT-AIS™ transceiver engine for superlative proven performance
- FLEXI-FIT™ bracket system for easy, convenient and secure installation
- Integrated high-performance GPS receiver & antenna (external antenna optional)
- Water, pressure spray and damp proof – IPx6 & IPx7
- Ruggedized – protected from vibration, shock and extreme temperatures
- Small and lightweight
- Ultra-low power consumption – best in class
- NMEA0183 & NMEA2000
- Automated health and performance monitoring
- Silent Mode (transmit-off) function
- Enhanced RF screening to protect against electromagnetic interference
- Built-in power surge protection
PHYSICAL & ENVIRONMENTAL SPECIFICATION
Size (H x W x D) 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 SPECIFICATION
Supply voltage 12V or 24V DC
Supply 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
