The em-trak B953 is a high transmit power (5W SOTDMA) 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 B953 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 a unique FLEXI-FIT bracket system, safe and secure installation is simple.
em-trak B953 Features
- Certified AIS Class B 5W SOTDMA
- Integrated high performance zero loss VHF antenna splitter
- Global Certification USCG / FCC / Canada / Europe
- FLEXI-FIT bracket system for easy, convenient and secure installation
- Integrated high-performance GPS receiver and antenna (external antenna optional)
- Water, pressure spray and damp proof IPx6 & IPx7
- 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 B953 Technical Specifications
PHYSICAL SPECIFICATION
Size 150mm x 110mm
Weight 330g
ELECTRICAL SPECIFICATION
Power Supply 12-24V DC
Power Consumption- 2.95W (245mA @ 12V)
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
DATA INTERFACES
Physical Data Interfaces
NMEA 0183 (2)
NMEA 2000
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 IEC62287-2 Ed 2
Product Safety Standards EN60950-1
Environmental Standard IEC60945 Ed 4
VHF TRANSCEIVER
Access Scheme SOTDMA
Operating Frequency Range 156MHz to 163MHz
AIS Receiver Sensitivity -111dBm
AIS Transmit Power 5W (+37dBm)
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
