SKU: 52548720668

em-trak B952 Class B AIS Transceiver - 5W SOTDMA - WiFi Bluetooth [430-0011]

Sale price$473.56 Regular price$526.18
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Description

em-trak B952 Class B AIS Transceiver - 5W SOTDMA - WiFi Bluetooth [430-0011]B952 Class B AIS Transceiver 5W SOTDMA WiFi & Bluetooth **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 B952 is a high power (5W SOTDMA) Class B AIS

B952 Class B AIS Transceiver - 5W SOTDMA - WiFi & Bluetooth

**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 B952 is a high-power (5W SOTDMA) Class B AIS transceiver, offering unmatched performance and ultra-low power consumption. Small and lightweight, it combines integrated Wi-Fi & Bluetooth capabilities for seamless wireless connectivity and AIS data streaming. It is compatible with any mobile device, PC, or wearable – ensuring everyone on board gets the most from your transceiver and related onboard equipment every day.

The B952 transceiver works seamlessly with em-trak's CONNECT-AIS app to make programming, configuration, and device monitoring easier than ever before. The class-leading device is engineered to deliver real-time data processing, with increased range and transmission priority and its flexible connectivity means it can be used by up to nine different devices simultaneously.

em-trak's next-gen technology means the B952 is delivered within a compact, easy-to-install, rugged package designed and manufactured to operate reliably without maintenance in the harshest marine environments.

Features:

  • Certified AIS Class B – 5W SOTDMA
  • Integrated WiFi & Bluetooth
  • 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
  • Guaranteed connectivity and interoperability with any app, chart plotter, smart phone, tablet or PC
  • 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: 385kg
  • 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): 170mA

Average current (at 12V) (wireless off): 135mA

Peak current: 2.5A

Average power consumption (at 12V): 2.0W

Average power consumption (at 12V) (wireless off): 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

WiFi: IEEE 802.11 (a/b/g), client and access point mode supported (2 connections in access point mode)

Bluetooth: BT Classic 4.0, 7 concurrent connections

Standards Compliance:

AIS standards: IEC 62287-2 Ed. 2, 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: 672975210557

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: 52548720668

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4.4 ★★★★★
Based on 17 reviews
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Product Reviews
H
Verified Purchase
Hudson
Birmingham, US
★★★★★ 1
Good interface but unwearable watch band
Color: Black
This review will be divided into 3 sections: looks, usability, and comfort. LOOKS I guess there's not much to say as style is very individual. I think this watch looks good for what you pay for it. USABILITY What I liked about this watch is that I could use it right out of the box. I have had basic Timex digital watches before (never this exact interface), and I was able to quickly figure it out. A quick glance at the manual to make sure I wasn't unaware of any features and I had 100% grasp of all the watch's features. The Timex interface puts many others to shame with its user-friendliness. On this model Timex has added a 'guide' on the display that tells you which button will do what-- increase number, decrease number, etc. This is cool. If you're even remotely handy with interfaces, once you learn this one, you'll know it backwards and forwards, and even if you forget, there's the in-display guide. The functions are standard for a Timex digital-- time and date, stopwatch with lap timing, countdown timer, and alarm. There is a 2nd time zone but no dedicated mode for it. You access it by holding the 'start' button when in the time mode. I like this feature as I occasionally need to know when to call people in 1 particular time zone. But, for example, if you are often switching back and forth between 2 time zones, you will have to reset the time to have the watch display the correct time at all times. And if you need more than 2 time zones, sorry, out of luck. Stopwatch (chrono) is good. Don't use the lap counter much but it seems to work well. Some have complained that the 'start' and 'stop' should be on the same button. Overall, it is a very uncluttered and usable interface. At first I thought it was very inaccurate at timekeeping, but it must have gotten accidentally reset because over the few months since I set it, it's only a couple seconds off from time.gov. very good timekeeping. It seems very water resistant. I have taken it swimming, surfing, and it held up fine. I haven't thoroughly tested its shock resistance but it has done some hiking and climbing where it got banged around a bit and it still works. COMFORT Unfortunately what the watch has in user interface usability, it totally lacks in comfort. The strap is a huge disaster. It is very rigid and uncomfortable. The 'waffling' or indented designs near the bezel on each side of the strap create areas where the strap digs into the wrist. with any prolonged wearing, it gets worse and worse until your wrist is begging you to take it off. The strap is just absolutely godawful. I have read reviews where G Shock owners said it was very good, well though out and comfortable. If that is the case, I shudder to imagine what a G Shock is like on the wrist. If constant pinching around sensitive areas on the side of the wrist seems like it would be the kind of thing to bother you, avoid this watch. I tried swapping it for another Timex band, which amazingly enough was uncomfortable it a DIFFERENT area! It seems Timex doesn't put much thought into their bands-- no part of the band should dig into the wrist. That's just obvious. CONCLUSION I really want to like this watch, I do. It's good-looking. It's very usable in terms of features. But the strap is terrible, so much so that the watch is unwearable. Unfortunately it took me about a week to figure this out, during which time the watch got sufficient wear so that it is no longer new, returnable condition. I am keeping it, using it as a 'beater' watch in the gym (I put my watch on the ground in the gym). If you purchase it I recommend you wear it for a good few hours while not doing anything that will scratch it, so that you can return it if need be.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 5, 2014
C
Verified Purchase
Curly and natural
Natrona Heights, US
★★★★★ 5
Best purchase ever!!!
Color: G9901: Gold band & Gold dial, Color: G9901: Gold band & Gold dial
The best fit,size, quality,weight and value for the individual in my life. You can see all the moving parts in the watch and he loved it!!! Seriously considering getting more for my kids and another color for him.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
K
Verified Purchase
Karar Abady
Lowell, US
★★★★★ 5
.
Color: G9901: Two tone band & Black dial
Very good quality and looks luxury
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
Y
Verified Purchase
Yoisnel Estrada Araujo
Phoenix, US
★★★★★ 5
Lo bollería a comprar
Color: G9901: Gold band & Black dial
Muy lujoso y elegantes un regalo excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 4
Make sure the clasp is suitable for the environment you will be wearing it in
Color: G9901: Black band & Black dial
I don't know if I didn't look closely at the clasp pick, or if I just didn't see one, but the clasp is a bit weakly designed for everyday wear. It's come unclasped twice in the 2 weeks I've been wearing it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026

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