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The Em-trak B921 Class B AIS is the most cost effective class B AIS transceiver with integrated GPS antenna built into a rugged enclosure
The Em-trak B921 Class B AIS transceiver includes both NMEA0183 and NMEA2000 interfaces so it is ready and able to be connected to all chartplotters. The B921 includes stealth (silent) mode functionality also, allowing it to continually receive AIS messages, but not transmit.
Configuration of the AIS is easy via the Pro2AIS software and included USB cable.
The em-trak B921 Class B AIS transceiver has a built in GPS antenna which reduces install time and does not require the installation of another GPS antenna. The Em-trak B921 does still include the ability to add an external GPS antenna if desired or required.
em-trak B921 AIS – Product Overview
- Rugged and Robust
- Built in surge protection
- Flexi-Fit mounting bracket for easy installation
- 2W transmit power
- Ready for connection to your chartplotter via NMEA0183 or NMEA2000
- Internal GPS antenna (External GPS Antenna option available)
- Global 3 year warranty
Em-trak B900 Series Introduction Video
Manufacturer’s website: https://www.em-trak.com