Em-Trak B924 Class B AIS Transceiver with Advanced Connectivity and Integrated VHF Splitter

Experience the most feature-rich 2W CSTDMA AIS transceiver in the B900 range with the Em-Trak B924. Designed for seamless connectivity, it features integrated WiFi and Bluetooth, allowing AIS data streaming to any mobile device, PC, or wearable. The built-in VHF antenna splitter enables you to share your existing VHF antenna without compromising performance.

Like all B900 transceivers, the B924 includes an advanced GPS receiver and antenna, along with em-trak's unique FLEXI-FIT® bracket system for effortless installation. Exceptionally lightweight and fully weatherproof, the B924 ensures superior AIS receive and transmit performance, even at maximum range. It is compatible with the CONNECT-AIS mobile app for easy programming, configuration, and health monitoring.

Key Features:

• Certified AIS Class B – 2W CSTDMA
• Integrated WiFi and Bluetooth for seamless connectivity
• Built-in VHF antenna splitter for optimal performance sharing
• Globally certified: USCG / FCC / Canada / Europe
• SRT-AIS™ Transceiver Engine for exceptional performance
• FLEXI-FIT™ bracket system for easy, secure installation
• High-performance internal GPS receiver and antenna (optional external antenna available)
• IPx6 and IPx7 certified for water and damp proofing
• Vibration, shock, and extreme temperature resistant
• Compact and lightweight design
• Ultra-low power consumption
• Guaranteed compatibility with any app, chart plotter, smartphone, tablet, or PC
• NMEA 0183 & NMEA 2000 connectivity
• Automated health and performance monitoring
• Silent mode (transmit-off) feature
• Enhanced RF screening for electromagnetic interference protection
• Built-in power surge protection

Physical & Environmental Specifications:

Dimensions: 150 x 115 x 45mm

Weight: 425g

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): 280mA (245mA with wireless off)

Peak Current: 2A

Power Consumption (at 12V): Average 3.4W (2.9W with wireless off)

Galvanic Isolation: NMEA 0183 inputs only, NMEA 2000, VHF antenna port

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
• WiFi: IEEE 802.11 (a/b/g), client and access point mode supported (2 connections in access point mode)
• Bluetooth: BT Classic 4.0, 7 concurrent connections

Standards Compliance:

• AIS Standards: IEC 62287-1 Ed. 3 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
• Internal/External Antenna: Internal or optional external antenna
• Time to First Fix from Cold Start: 26s

VHF Transceiver:

• VDL Access Scheme: CSTDMA
• 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: 2W (+33dBm)

User Interface:

Indicators for power, transmit timeout, error, and silent mode.