em-trak B921 Class B AIS Transceiver - 2W CSTDMA [430-0001] - Image 1
em-trak B921 Class B AIS Transceiver - 2W CSTDMA [430-0001] - Image 2
em-trak B921 Class B AIS Transceiver - 2W CSTDMA [430-0001] - Image 3
em-trak B921 Class B AIS Transceiver - 2W CSTDMA [430-0001]

em-trak B921 Class B AIS Transceiver - 2W CSTDMA [430-0001]

MPN / Part #: HTS-98701 Brand: em-trak In Stock – Ready to Dispatch
$630.63 $700.70
📍 Ships From: Tampa, FL or Bayville, NJ
⏱️ Est. Delivery: 1 - 3 Business Days (USPS Economy Ground)
What's in the Box? (Package Includes)
Factory Sealed
  • 1x em-trak AIS Transponder / Receiver Unit
  • 1x VHF Antenna Splitter (Class B transponders)
  • 1x External GPS Antenna
  • 1x NMEA 2000 Drop Cable (Micro-C)
  • 1x Power / Data Wiring Harness
  • 1x Mounting Hardware Kit
  • 1x Quick Start Guide & Manual

B921 Class B AIS Transceiver - 2W CSTDMA

**As the FCC requires all units sold in the US to be programmed by a qualified technician. Please submit the form below for programming at the time of purchase. A copy of the MMSI registration or FCC Ship Station License is required along with the vessel master or owner's signature on the completed programming form.**

Click here to download form.

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 our 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

Physical & Environmental Specifications:

  • Size (H x W x D): 150 x 115 x 45mm
  • Weight: 375kg
  • 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
  • Supply voltage range: 9.6V - 31.2V DC
  • Average current (at 12V): 135mA
  • Peak current: 2A
  • Average power consumption (at 12V): 1.6W
  • Galvanic isolation: NMEA 0183, NMEA 2000, VHF antenna port

Connectors:

  • VHF antenna: SO-239
  • GNSS: TNC
  • Power: 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 62287-1 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 the 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: Power, transmit timeout, error, silent mode

In the Box:

  • 1 x AIS transceiver
  • 1 x Power and data cable (2M)
  • 1 x FLEXI-FIT™ mounting bracket
  • Complete with screws & optional fixing tape
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Specifications:

  • AIS Class: B
  • Antenna Included: Yes
  • Display Included: No
  • Function: Receive/Transmit
  • GPS Included: Yes
  • Box Dimensions: 6"H x 7"W x 8"L WT: 1.55 lbs
  • UPC: 672975210502

Quick Guide (pdf)
Brochure (pdf)
Brand / Manufacturer em-trak
Category / Product Type AIS Systems
MPN / Manufacturer Part # HTS-98701
Item Condition 100% Brand New / Factory Sealed
Warranty Status Full Original Manufacturer Warranty Backed
Fulfillment Hub Dispatched from Regional Marine Distribution Hubs
  • Free Ground Shipping: Free shipping on all orders within the continental United States.
  • Same-Day Dispatch: Orders placed before 4 PM EST ship same business day from our regional marine logistics hubs.
  • 100% Authorized Dealer: All electronics and equipment are factory sealed with full manufacturer warranty support.
  • Return Policy: Unopened 30-day returns. Email info@hightide.supply to request an RMA number. Customer pays return shipping. Trolling motors, lithium batteries, and heavy freight items are final sale.
Frequently Asked Questions

Q: Is this em-trak AIS Systems covered by a warranty?

A: Yes. High Tide Supply is an authorized dealer of em-trak. All products are 100% brand new, authentic, and carry full manufacturer warranty.

Q: How fast does shipping take for the em-trak B921 Class B AIS Transceiver - 2W CSTDMA [430-0001]?

A: Standard ground shipping is free on all orders. Orders are processed from regional fulfillment hubs in 0–1 business days, with delivery taking 1–5 business days.

Q: What is the return policy for em-trak B921 Class B AIS Transceiver - 2W CSTDMA [430-0001]?

A: Brand new, unopened items in original factory packaging can be returned within 30 days. Customers must email info@hightide.supply for an RMA number. Return shipping is customer responsibility. Trolling motors, lithium batteries, and heavy freight items are final sale.

Hand-picked installation accessories needed to complete the installation of your em-trak B921 Class B AIS Transceiver - 2W CSTDMA:

$98.79
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$49.91
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