Description
em-trak B921 Class B AIS Transceiver | Boat Supply Store
Elevate your vessel's navigational awareness and collision avoidance capabilities with this 2W CSTDMA Class B AIS transceiver. Engineered with an advanced SRT-AIS™ engine, it provides superior signal processing for accurate target detection and reporting. Its integrated GPS receiver ensures precise position data transmission, crucial for vessels operating in busy shipping lanes or offshore fishing grounds, and it operates reliably on 12V/24V DC power with a broad supply range of 9.6V-31.2V. Featuring an IPx6/IPx7 certified, durable enclosure, this unit is built to withstand harsh marine environments.
Key Features
- Superior 2W CSTDMA Class B AIS Transceiver performance for enhanced visibility.
- Advanced SRT-AIS™ Transceiver Engine for robust signal processing.
- Innovative FLEXI-FIT™ bracket system for simplified and versatile installation.
- Integrated GPS receiver and antenna for precise positioning without external components.
- Rugged IPx6 and IPx7 certified construction for extreme marine environments.
- Ultra-low power consumption design minimizes onboard electrical load.
- Comprehensive NMEA 0183 & NMEA 2000 connectivity for seamless integration with existing systems.
- Essential silent mode (transmit-off) function for privacy when needed.
Specifications
| Product Specifications | |
|---|---|
| Type | 2W CSTDMA Class B AIS Transceiver |
| GPS Receiver | Integrated |
| Data Interfaces | NMEA 0183 (2 ports), NMEA 2000, USB Micro-B |
| Waterproof Rating | IPx6 and IPx7 certified |
| Power Consumption (Average at 12V) | 1.6W |
| Operating Voltage | 12V/24V DC |
| Voltage Supply Range | 9.6V-31.2V |
| VHF Antenna Connector | SO-239 |
| Other Connectors | TNC, 12-way circular multipole, NMEA 2000 Micro-C |
| Features | SRT-AIS™ engine, FLEXI-FIT™ bracket, Silent Mode, Automated health and performance monitoring, Enhanced RF screening, Built-in power surge protection |
| Certifications | IEC 62287-1 Ed. 3, ITU-R M.1371.5, EN60950-1, EN62311:2008, IEC 60945 Ed. 4, IEC 61162-1 Ed 5.0, IEC 61162-2 Ed 1.0, NMEA 2000 Ed 3.101, IEC 61108-1 Ed 2.0, IEC 61108-02 Ed 1.0, USCG / FCC / Canada / Europe |
Who This Is For
Boaters requiring robust situational awareness through reliable Class B AIS communication for enhanced collision avoidance. This unit is ideal for those seeking straightforward integration with chart plotters and prioritizing minimal power draw and ease of installation.
How It Compares
| Feature | em-trak B921 Class B AIS Transceiver | Competitor |
|---|---|---|
| AIS Class | Class B (2W CSTDMA) | Class B (SOTDMA), Not Applicable |
| Transmit Power | 2W | 2W, Not Applicable |
| Internal GPS | Yes | Yes, No |
| NMEA 2000 | Yes | Yes, Yes |
| NMEA 0183 | Yes (2 ports) | Yes, Not Applicable |
| Waterproof Rating | IPx6 and IPx7 | IPX7, IPX7 |
| Power Consumption (Average at 12V) | 1.6W | Approx. 2.5W, Not Applicable |
Common Concerns Answered
Is the em-trak B921 immediately operational upon installation in the US?
For US sales, the em-trak B921 requires programming by a qualified technician to comply with FCC regulations. This involves a formal process of submitting necessary forms.
What if I don't have a compatible chart plotter currently installed?
While the em-trak B921 integrates seamlessly with chart plotters, users without one might consider alternative display solutions or ensure their existing system is compatible for optimal benefit from the AIS data.
Is the programming requirement a significant barrier for US boaters?
The FCC programming requirement for US sales necessitates using a qualified technician, which may add a step to the installation process for DIY enthusiasts. However, it ensures regulatory compliance and proper functionality.
Frequently Asked Questions
What is required for the em-trak B921 to be programmed in the US?
Programming in the US requires a qualified technician to complete the necessary FCC forms and procedures.
What is CSTDMA technology?
CSTDMA (Carrier Sense Multiple Access with Collision Avoidance) is a transmission access method used by Class B AIS devices to coordinate transmissions and avoid collisions with other AIS signals, ensuring reliable data exchange.
Does the em-trak B921 have an internal GPS antenna?
Yes, the em-trak B921 features an integrated GPS receiver and antenna, eliminating the need for an external GPS source for position reporting.
What are the power consumption levels of the em-trak B921?
The em-trak B921 exhibits ultra-low power consumption, averaging approximately 1.6W at 12V, with an operational supply range of 9.6V to 31.2V DC.
Can the em-trak B921 be connected to a chart plotter?
Yes, the em-trak B921 supports NMEA 0183 and NMEA 2000 connectivity, allowing for seamless integration with most modern chart plotters and multi-function displays.
