The em-trak B923 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.
The em-trak B923 has an integrated VHF antenna splitter which enables the transceiver to share your existing VHF antenna without any loss of performance. With built-in intelligent connectivity, integrated next-generation GPS receiver & antenna and the unique FLEXI-FIT bracket system, safe and secure installation is simple.
em-trak B923 Features
- Certified AIS Class B 2W CSTDMA
- Integrated high performance zero loss VHF antenna splitter
- Global Certification USCG / FCC / Canada / Europe
- SRT-AIS transceiver engine for superlative proven performance
- FLEXI-FIX bracket system for easy, convenient and secure installation
- Internal high-performance GPS receiver and 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
em-trak B923 Technical Specifications
PHYSICAL SPECIFICATION
Size 150mm x 110mm
Weight 360g
ELECTRICAL SPECIFICATION
Power Supply 12-24V DC
Power Consumption 2.95W (245mA @ 12V)
DATA INTERFACES
Physical Data Interfaces
NMEA0183 (2)
NMEA2000
USB
CONNECTORS
VHF Antenna Output SO239
VHF Radio Input SO239
GPS Antenna TNC
NMEA2000 Standard 5 Way Micro-C Connector
Power/NMEA0183 12 Way Circular Multipole
USB Micro USB
em-trak B923 In the box
1 x AIS Transceiver
1 x Power and Data Cable (2m)
1 x VHF Radio Accessory Cable (1m)
1 x FLEXI-FIT Mounting Bracket Complete with Screws & Optional Fixing Tape
STANDARDS COMPLIANCE
AIS Standards IEC62287-1 Ed 3
Product Safety Standards EN60950-1
Environmental Standard IEC60945 Ed 4
VHF TRANSCEIVER
Access Scheme CSTDMA
Operating Frequency Range 156MHz to 163MHz
AIS Receiver Sensitivity -111dBm
AIS Transmit Power 2W (+33dBm)
GPS RECEIVER & ANTENNA
Channels 72
GPS Type & Performance GPS/Galileo + GLONASS or BEIDOU
ENVIRONMENTAL STANDARD
Category Exposed
Water Proofing IPx6 & IPx7
Operating Temperature -25°C to +55°C
ANTENNA SPLITTER
VHF Radio Transmit Path Loss <1dB
Receive Path Loss 0dB
Path Switching Time < 10us VHF Radio Path Rating > 25W
Path on Power Failure VHF to Antenna
Antenna Fault Detection Yes
Switch Type Solid state
