Em-Trak

Em-Trak B921 2W CSTDMA Class B AIS Transceiver - 430-0001

Item: #1374600 | Part Number: 430-0001
$630.63
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Description

The Em-Trak B921 Class B AIS Transceiver delivers reliable, next-generation vessel awareness in a compact, low-power design. With 2W CSTDMA transmission, integrated GPS, and real-time AIS processing, it provides a clear picture of nearby traffic and critical time to respond. Easy to install and globally certified for safety and performance.

Image of : Em-Trak B921 2W CSTDMA Class B AIS Transceiver - 430-0001 Em-Trak B921 2W CSTDMA Class B AIS Transceiver - 430-0001 Item # 1374600

Description

The B921 is a 2W CSTDMA Class B AIS transceiver, delivering Em-Trak's advanced performance and reliability through next-gen technology. Small and durable, this trusted transceiver processes all AIS transmissions in real-time, even at the range limit, so you always have the complete picture and the time to respond.

Em-Trak's intelligent connectivity means the B921 can be connected to any chart-plotter and comes equipped with integrated GPS technology and best-in-class, ultra-low power consumption. Installation is also simplified with a unique FLEXI-FIT® bracket system to have you up and running in no time at all.

Features:

  • Certified AIS Class B - 2W CSTDMA
  • Global certification - USCG/FCC/Canada/Europe
  • SRT-AIS™ Transceiver Engine for superlative proven performance
  • FLEXI-FIT™ bracket system for easy, convenient, and secure installation
  • Internal high-performance GPS receiver and antenna (external antenna optional)
  • Water, pressure spray, and damp proof (IPx6, IPx7 certified)
  • Protected from vibration, shock, and extreme temperatures
  • Small and lightweight
  • Ultra-low power consumption - best in class
  • NMEA 0183 & NMEA 2000
  • Automated health and performance monitoring
  • Silent mode (transmit-off) function
  • Enhanced RF screening to protect against electromagnetic interference
  • Built-in power surge protection

Specifications:

  • Dimensions (H x W x D): 5.9" x 4.5" x 1.8" (150 x 115 x 45 mm)
  • Weight: .8 lbs (375 g)
  • Operating temperature: -13° to 131° F (-25° to 55° C)
  • Ingress protection: IPx6 and IPx7
  • Supply voltage: 12V or 24V DC
  • Supply voltage range: 9.6V - 31.2V DC
  • Average current (at 12V): 135 mA
  • Peak current: 2A
  • Average power consumption (at 12V): 1.6W
  • Galvanic isolation: NMEA 0183, NMEA 2000, VHF antenna port
  • VHF antenna: SO-239
  • GNSS: TNC
  • Power: 12-way circular multipole
  • NMEA 2000: 5-way Micro-C connector
  • USB: USB Micro-B

Included:

  • AIS transceiver
  • Power and data cable (2 m)
  • FLEXI-FIT™ mounting bracket
  • Complete with screws and optional fixing tape

Owner's Manual (2.29 MB)

Part Numbers for Em-Trak B921 2W CSTDMA Class B AIS Transceiver - 430-0001

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Questions

I see in the manual it requires the dealer to do the configuration. Is that done by Defender or do I have to find someone?

Asked by: jon L
AIS transceivers are programmed here at Defender prior to shipping. Feel free to contact us directly at [email protected] if you'd like more information on what is needed for this process!
Answered by: MorningGlory
Date published: 2025-07-22
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Em-Trak B921 2W CSTDMA Class B AIS Transceiver - 430-0001
Total:
$630.63