Em-Trak B924 CLASS B I

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I Certiﬁed AIS Class B – 2W CSTDMA

I Integrated WiFi and Bluetooth

I Integrated VHF antenna splitter

I Global Certiﬁcation - USCG / FCC / Canada / Europe

I SRT-AIS

™

Transceiver Engine for superlative

proven performance

I FLEXI-FIT

™

bracket system for easy, convenient and

secure installation

I Internal high-performance GPS receiver and antenna

(external antenna optional)

I Water, pressure spray and damp proof

(IPx7 & IPx6 Certiﬁed)

I Protected from vibration, shock and extreme temperatures

I Small and lightweight

I Ultra-low power consumption – best in class

I NMEA0183 & NMEA2000

I Automated health and performance monitoring

I Silent Mode (transmit-off) function

I Enhanced RF screening to protect against

electromagnetic interference

I Built-in power surge protection

The B924 is a standard transmit power

(2W CSTDMA) Class B AIS transceiver that is

small and lightweight, 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 lowest power consumption.

The B924 combines WiFi and Bluetooth for seamless

wireless connectivity and AIS data streaming to any

mobile device or PC, as well as a high performance

integrated VHF antenna splitter, which enables the

transceiver to share your existing VHF radio

antenna without any loss of performance and

fail-safe reliability. With built-in intelligent

connectivity, integrated next generation GPS

receiver & antenna and a unique FLEXI-FIT

™

bracket

system, safe and secure installation is simple.

DESCRIPTION

B924 CLASS B I AIS Transceiver

STANDARD POWER (2W CSTDMA)

FEATURES

EM-TRAK.COM

Product Code: 430-0007

2W/CS

TRANSMIT & RECEIVE

NMEA0183 & 2000

IP67

WATERPROOF

WiFiBLUETOOTH

SPLITTER

GPS

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The em-trak B924 is a standard power (2W CSTDMA) Class B AIS transceiver designed for marine use, offering comprehensive AIS data reception and transmission with advanced connectivity and robust performance.

Function Description:

The B924 is a Class B AIS transceiver that transmits at 2W CSTDMA, enabling it to send and receive AIS information and targets over maximum ranges while maintaining low power consumption. It integrates WiFi and Bluetooth for seamless wireless connectivity, allowing AIS data to be streamed to mobile devices or PCs. A high-performance integrated VHF antenna splitter is included, which allows the transceiver to share an existing VHF radio antenna without performance loss or reliability issues. The device features built-in intelligent connectivity, a next-generation GPS receiver and antenna (with an option for an external antenna), and a unique FLEXI-FIT™ bracket system for simple and secure installation. It is designed to be water, pressure spray, and damp proof, protected from vibration, shock, and extreme temperatures, making it suitable for harsh marine environments. The B924 also includes automated health and performance monitoring, a silent mode (transmit-off) function, enhanced RF screening, and built-in power surge protection.

Important Technical Specifications:

Physical Specification:

Size: 150 x 110 mm
Weight: 370g

Electrical Specification:

Power Supply: 12-24V DC
Power Consumption (WiFi & Bluetooth On): 3.35W (280mA @ 12V)
Power Consumption (WiFi & Bluetooth Off): 2.95W (245mA @ 12V)
Galvanic Isolation: NMEA0183 Inputs Only

Connectors:

VHF Antenna Output: SO239
VHF Radio Input: SO239
GNSS Antenna: TNC
NMEA2000: Standard 5 Way Micro Connector
Power/NMEA0183: 12 Way Circular Multipole
USB: Micro B

Data Interfaces:

Physical Data Interfaces: NMEA0183 (2), NMEA2000, USB
WiFi Type: IEEE 802.11 (a/b/g)
Bluetooth Type: BLE 4.0 Classic

VHF Transceiver:

Access Scheme: CSTDMA
Operating Frequency Range: 156MHz To 163MHz
AIS Receiver Sensitivity: -111dBm
AIS Transmit Power: 2W (+33dBm)

GNSS Receiver & Antenna:

Channels: 72
GNSS Type & Performance: GPS/Galileo + GLONASS Or BEIDOU

Environmental Standard:

Category: Exposed
Waterproofing: 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

Standards Compliance:

AIS Standards: IEC62287-1 Ed 3, ITU-R M.1371-5
Product Safety Standards: EN60950-1 2006 (+A11:2009, +A1:2010, +A12:2011, +A2:2013), EN62311:2008, CFR 47 PT1.1310 (2016), Health Canada Safety Code 6, ARPANSA Radiation Protection Series No.3
Environmental Standard: IEC60945 Ed 4
Serial Data Interface Standards: IEC61162-1 Ed 5.0, IEC61162-2 Ed 1.0
GNSS Performance Standards: IEC61108-1 Ed 2.0, IEC61108-02 Ed 1.0
NMEA2000 Interface Standard: NMEA2000 Ed 3.101

Usage Features:

Wireless Connectivity: Integrated WiFi and Bluetooth allow for easy streaming of AIS data to mobile devices (smartphones, tablets) and PCs, enhancing navigation and situational awareness.
Integrated VHF Antenna Splitter: This feature eliminates the need for a separate VHF antenna for the AIS transceiver, allowing it to share the existing VHF radio antenna without any performance degradation or reliability concerns. This simplifies installation and reduces clutter.
FLEXI-FIT™ Bracket System: Designed for easy, convenient, and secure installation, making the setup process straightforward for users.
Next-Generation GPS Receiver & Antenna: Provides accurate positioning data, essential for AIS functionality. An option for an external antenna is available for enhanced signal reception if needed.
NMEA0183 & NMEA2000 Connectivity: Ensures compatibility with a wide range of marine electronics, allowing seamless integration into existing navigation systems like chartplotters.
Silent Mode (Transmit-Off): Allows the user to disable AIS transmission when privacy or discretion is required, while still receiving AIS data.
Ultra-Low Power Consumption: Best in class, ensuring minimal drain on the vessel's power supply, which is crucial for extended voyages.
Global Certification: Certified by major regulatory bodies including USCG / FCC / Canada / Europe, ensuring compliance and reliability worldwide.
SRT-AIS™ Transceiver Engine: Utilizes advanced technology for superlative and proven performance in AIS data processing.

Maintenance Features:

Automated Health and Performance Monitoring: The device continuously monitors its own operational status and performance, providing alerts or indications if any issues arise, which aids in proactive maintenance.
Robust Construction: Certified IPx7 and IPx6 for water, pressure spray, and damp proofing, and protected from vibration, shock, and extreme temperatures. This durability minimizes the need for frequent repairs or replacements due to environmental factors.
Enhanced RF Screening: Protects the device against electromagnetic interference, ensuring stable and reliable operation in environments with other electronic equipment.
Built-in Power Surge Protection: Safeguards the transceiver from electrical spikes, extending its lifespan and reducing the risk of damage from power fluctuations.
Three-Year Global Warranty: Em-trak provides a comprehensive warranty, offering support and repair or replacement services in the unlikely event of a product problem, provided the product has not been incorrectly used, damaged, or tampered with. This commitment to customer support ensures peace of mind for users.