AIS B921 class B transponder - 2W

Name: AIS B921 class B transponder - 2W
Brand: Em-trak

The Em-Trak B921 AIS transponder is a 2W CSTDMA Class B AIS transceiver, offering advanced performance and reliability using next-generation technology. Small and rugged, this transceiver processes all AIS transmissions in real time , even at the edge of range, so you always have complete information and time to respond.

This transponder features em-trak's intelligent connectivity , which means that the B921 AIS transponder can be connected to any chartplotter . It also features integrated GPS technology with ultra-low power consumption. It's also very easy to install , thanks to the unique Flexi-Fit support system that gets you up and running in no time.

EM-TRAK - AIS B921 CLASS B TRANSPONDER - 2W - SAFETY FIRST

The Em-Trak B921 AIS transponder consumes less energy, while offering the best AIS and GPS performance , ensuring that every transmission is translated in real time and without error .

As a reminder, a Class B AIS transponder is a device used in ships to transmit and receive information on position, heading, speed, characteristics, position via GPS connection, ship identity via MMSI number and name . The Class B AIS transponder is a smaller, less expensive version of the Class A AIS transponders used on large commercial vessels.


	B921 AIS transponder connectivity The transceiver connects and shares data simultaneously on multiple devices and on any type of screen : chartplotter, PC, tablet, cell phone or connected watch. You'll then have access to the best features of your onboard equipment, including all AIS-related functions such as weather, MOB, anti-collision, anchor safety, vessel tracking and more . This model of Em-Trak B921 Class B AIS transponder features the following connectivity: VHF antenna - SO-239 GNSS-TNC NMEA 0183 NMEA 2000 USB port for NMEA 0183 data

Reliable and easy to install Em-trak AIS transceivers are designed with high-quality components for years of continuous, maintenance-free operation. This AIS transponder is designed for the harshest marine environments, and all products are extensively tested to ensure they are waterproof and resistant to extreme temperatures, shock, vibration and sun/UV . Thanks to the Flexi-Fit installation bracket, integrated GPS antenna, and connectivity options such as NMEA 2000, NMEA 0183 and USB ports, the em-trak AIS transponder has been designed and developed for quick and easy configuration and installation on any vessel . Finally, all em-trak AIS transponders are rigorously tested and certified to meet international AIS standards, so you can have peace of mind, wherever you are. FCC, USCG, Canada and EU certified.

AIS B921 CLASS B TRANSPONDER RANGE PRESENTATION

Em-Trak B921 Class B AIS transponder technical specifications

PHYSICAL AND ENVIRONMENTAL SPECIFICATIONS
Size (W x H x D in mm)	150 x 115 x 45 mm
Weight	375 g
Operating temperature range	-25°C to +55°C
Storage temperature	-25°C to +70°C
Protection class	IPx6 and IPx7
ELECTRICAL SPECIFICATIONS
Supply voltage	12V or 24V DC
Supply voltage range	9.6 V - 31.2 V DC
Average current (at 12V)	135 mA
Peak current	2A
Galvanic isolation	NMEA 0183 inputs only, NMEA 2000, VHF antenna port
CONNECTORS
VHF antenna - SO-239
GNSS-TNC
Power supply/NMEA 0183/silent mode - 12-channel circular multi-pole
NMEA 2000 - 5-way Micro-C connector
USB-USB Micro-B
DATA INTERFACES
NMEA 0183	2 bidirectional ports
NMEA 2000	NMEA 2000 Ed 3.101, LEN=1
USB	PC communication port for NMEA 0183 data
GPS
Supported systems	GPS, GLONASS, BeiDou, Galileo (two of any combination, three with GPS, Galileo)
Channels	72
Internal or external antenna	Internal
Cold start time	26 seconds
VHF TRANSCEIVER
VDL access scheme	CSTDMA
Operating frequency	156.025 MHz - 162.025 MHz
Channel bandwidth	25 kHz
Receivers/transmitters	2 x receivers, 1 x transmitter
AIS receiver sensitivity (20% PER)	-111dBm
AIS transmitter power	2W (+33dBm)
USER INTERFACE
Indicators	Power, transmission delay, error, silent mode