SKU: 91944011176

em-trak B951 Class B AIS Transceiver - 5W SOTDMA [430-0009]

Sale price$340.81 Regular price$378.68
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

em-trak B951 Class B AIS Transceiver - 5W SOTDMA [430-0009]B951 Class B AIS Transceiver 5W SOTDMA **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 B951 is a high power (5W SOTDMA) Class B transceiver,

B951 Class B AIS Transceiver - 5W SOTDMA

**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 B951 is a high-power (5W SOTDMA) Class B transceiver, delivering advanced performance and ultimate reliability through em-trak's next-gen technology. Small and durable, this trusted transceiver processes all AIS transmissions in real-time, with increased range and transmission priority so you always have the complete picture and the time to respond, even in the busiest waters.

em-trak's flexible, intelligent connectivity means the B951 can be paired to any chart-plotter and its next-gen GPS receiver and the antenna are already integrated inside the device to provide best-in-class, ultra-low power consumption, and performance. em-trak's unique FLEXI-FIT® bracket system completes the package and ensures easy installation.

Features:

  • Certified AIS Class B – 5W SOTDMA
  • 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: 2.5A
  • Average power consumption (at 12V): 1.6W
  • Galvanic isolation: NMEA 0183 inputs only, 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: SOTDMA
  • 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: 5W (+37dBm)

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 7"L WT: 2 lbs
  • UPC: 672975210540

Quick Guide (pdf)
Brochure (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91944011176

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4.0 ★★★★★
Based on 29 reviews
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K
Verified Purchase
Kenneth
Alexandria, US
★★★★★ 5
A Miracle for dry mouth!!
Scent Name: Berry, Size: 100 Count
I don't know what I would do without this product. I suffer from severe dry mouth from my medications and xylmelts have been a miracle for me. I buy them regularly and cannot live without them I sleep comfortably with them in my mouth and they help beyond belief.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
B
Verified Purchase
Beverly White
Alexandria, US
★★★★★ 5
Dry mouth remedy
I have been using these for a couple of years and they work great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
J
Verified Purchase
Jeff D.
Lake Worth, US
★★★★★ 5
Slim profile, stays anchored all night (Berry flavor is great!)
Scent Name: Berry, Size: 100 Count, Scent Name: Berry, Size: 100 Count
I rely on these nightly to combat dry mouth, and they deliver exactly what is promised. The adhesion mechanism is impressive—once placed against the gum, the disc stays securely anchored for a full 6–8 hours without shifting, allowing me to sleep without interruption. ​The profile is ideal; the discs are incredibly slim and unobtrusive, so you don't feel like you have a bulky object in your mouth while trying to fall asleep. Despite being so compact, they pack enough moisture to last until morning. The Berry flavor is mild and soothing, making it a perfect bedside companion. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
G
Verified Purchase
Gabrielle Grim
Battle Creek, US
★★★★★ 5
Excellent product for dry mouth
Scent Name: Berry, Size: 100 Count
If you are having trouble with dry mouth, especially while sleeping, this is definitely the product for you. I have severe dry mouth and have tried multiple things including hard candy (yes, I know not very smart) as well as different biotin products, the mouthwash, the spray and the gel, which all do work, but do not last for very long. These stay in place open the corner of your mouth, last for hours and truly work. I highly recommend it if you are having a dry mouth issue
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2026
S
Verified Purchase
Sharon
Fort Morgan, US
★★★★★ 5
Works great
Scent Name: Berry, Size: 100 Count
I have to use these for about 1/2 a year. I keep bronchitis and sinusitis from about Oct. to April every since I was a child. When I am suffering with these I can't breath through my nose, epically at night while sleeping and would wake up several times a night with dry mouth so bad ir was literally painful. My mom turned me on to these because she was using the with her CPAP. I sometimes have a bit of difficulty getting them to stay put but overall they are great. I have tried the OG, cinnamon, and berry. The OG have no real taste, but you wake up with a sweet taste in your mouth. I tried the cinnamon because I love cinnamon and didn't listen to the reviews stating how strong the flavor is, big regret, it's like putting two or three fireballs in your mouth, won't be making that mistake again. The berry ones are actually best in my opinion. They have a light berry flavor that isn't overpowering, isn't quite as sweet as the OG. Whichever one you choose you won't wake up in pain. I do suggest using only one at first as opposed to the two they recommend, unless you like waking up with your head on a water logged pillow. One generally gets me through the night unless my congestion is super bad, then I will sometimes have to use a 2nd one about 1/2 way through my night when I wake up for the bathroom and realize it's already completely dissolved.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 21, 2025

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