Em-trak B953 AIS Transceiver with VHF Splitter - High-Performance Class B 5W

The Em-trak B953 is a compact and lightweight AIS Class B transceiver that offers exceptional AIS receive and transmit performance with 5W SOTDMA. It ensures you receive more AIS information and targets at maximum range while maintaining minimal power consumption.

This transceiver features an integrated VHF antenna splitter, allowing it to share your existing VHF antenna without compromising performance. It boasts intelligent connectivity with a built-in next-generation GPS receiver and antenna, along with a unique FLEXI-FIT bracket system for straightforward, secure installation.

Key Features

• Certified AIS Class B – 5W SOTDMA
• Integrated high-performance zero-loss VHF antenna splitter
• Global Certification: USCG, FCC, Canada, Europe
• Easy and secure installation via FLEXI-FIT™ bracket system
• 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
• Compact and lightweight
• Ultra-low power consumption – best in class
• Guaranteed connectivity and interoperability with any app, chart plotter, smartphone, tablet, or PC
• Support for 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 Specifications

Size: 150 x 115 x 45mm

Weight: 415g

Operating Temperature: -25°C to +55°C

Storage Temperature: -25°C to +70°C

Ingress Protection: IPx6 and IPx7

Electrical Specifications

Supply Voltage: 12V or 24V DC

Voltage Range: 9.6V - 31.2V DC

Average Current (at 12V): 245mA

Peak Current: 2.5A

Average Power Consumption (at 12V): 2.9W

Connectors

• VHF Antenna: SO-239
• VHF Radio: 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 62287-2 Ed. 2 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

Antenna: Internal or optional external

Time to First Fix from Cold Start: 26s

VHF Transceiver

VDL Access Scheme: SOTDMA

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: 5W (+37dBm)

User Interface

Indicators: Power, transmit timeout, error, silent mode