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Description
em-trak B953 Class B AIS Transceiver - 5W SOTDMA w/VHF Antenna SplitterB953 Class B AIS Transceiver 5W SOTDMA with VHF Antenna Splitter **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 B953 is a high transmit power (5W
B953 Class B AIS Transceiver - 5W SOTDMA with VHF Antenna Splitter
**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.**
The B953 is a high transmit power (5W SOTDMA) AIS Class B transceiver that is small, and lightweight, yet delivers the very best AIS receive and transmit performance so you see more AIS information and targets at maximum range – all achieved with the least power consumption.
The B953 has an integrated VHF antenna splitter which enables the transceiver to share your existing VHF antenna without any loss of performance. With built-in intelligent connectivity, integrated next-generation GPS receiver & antenna, and a unique FLEXI-FIT bracket system, safe and secure installation is simple.
Features:
- Certified AIS Class B – 5W SOTDMA
- Integrated VHF antenna splitter
- 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 chart plotter 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
- Fail-safe VHF radio operation
Physical & Environmental Specifications:
- Size (H x W x D): 150 x 115 x 45mm
- Weight: 415kg
- 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): 245mA
- Peak current: 2.5A
- Average power consumption (at 12V): 2.9W
- 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 62287-2 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 VHF radio accessory cable
- 1 x FLEXI-FIT™ mounting bracket
- Complete with screws & optional fixing tape
Manufacturer : em-trak
Manufacturer Part No : 430-0013
UPC : 672975210564
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.7 ★★★★★
Based on 881 reviews
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Product Reviews
★★★★★ 4
Excellant value
Special Size: Wide Leg Crop, Size: 14, Color: Rinse, Special Size: Wide Leg Crop, Size: 14, Color: Rinse
Purchased the “cropped” length. I am 5ft 3.5 inch. Weight 170lbs (42 inch hip/38 inch waist) normally wear a size 10/12 or 31 in jeans, depending on the brand. I ordered up at 14 for these based on other reviewers. (When held up to other jeans they were the same as a Talbots 10 at the waist)
Prewash they felt good, a little big& length hit at the top of my foot. After wash and dry, the fit was almost perfect and the length was at lower ankle. Ordering up is probably the right choice, although I think I could have been comfortable in a 12 (with no drying). They are a tad bit too long for a “cropped” look IMO. The wide leg is a true wide leg and falls straight from the waist. The material is heavy and there is almost no give/stretch - so a traditional denim. This is the dark blue and it is a true dark blue. You can’t beat the price, excellent value.
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Reviewed in the United States on March 31, 2026
★★★★★ 3
Cropped ones are better, size issue with full length pants
Special Size: Wide Leg, Size: 18, Color: Authentic Medium Wash
These are very small in the waist and about 8 inches too long (and I'm not even that short). Very well constructed though so I'll keep them on hand as I'm on a weight loss journey. These were an 18 and fit more like a larger 14.
The cropped ones are AWESOME. I ordered a second pair in a different color. They fit absolutely perfectly and hit me around the ankle length wise. Adore them.
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Reviewed in the United States on September 28, 2025
★★★★★ 5
GET THESE JEANS!!
Special Size: Wide Leg Crop, Size: 12, Color: Iced Blue Light Wash, Special Size: Wide Leg Crop, Size: 12, Color: Iced Blue Light Wash
I ordered these jeans because they were recommended by a youtube influencer and I have 0 regrets! They are a fairly heavy denim with just the right amount of stretch to them. I'd consider them to be mid to high waisted since the closure is right below my belly button. However, if I hike them up a bit they sit right above the belly button. I washed and dried them with little to no shrinkage. Length-wise they're slightly cropped on me, and fall right above the ankle. These jeans are honestly SO versatile because they look great with ballet flats, heels, tennis shoes, AND suede or leather ankle boots! Since I couldn't decide, I ordered them in two colors (iced blue light wash & medium blue vintage), and I love them both!! For reference, I'm 5'6 and 170 lbs. I ordered size 12 and they fit great. Highly recommend. You CANNOT beat the price for this level of quality in my opinion!!
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Reviewed in the United States on October 4, 2025
★★★★★ 5
My everyday Jean
Special Size: Wide Leg Crop, Size: 8, Color: Medium Blue Vintage
They don’t have much of a stretch to them but they do get a bit more lose around the waist when you wearing often. Got a size 8 was tight but after a few uses they got perfect. Be Definitely is a thick jean material tucks in any unwanted over hang. Don’t tumble dry they do shrink
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Reviewed in the United States on May 16, 2026
★★★★★ 4
Good Jean for the price waist hips run small
Special Size: Wide Leg, Size: 18, Color: Black
These pants are good for the price. I needed a pair of wide leg black jeans and the price on these was good. Reviews said the waist was small. I’m a 16/18. Got an 18. And the high waist (up to my belly button) fits snug but has a little give. Still comfortable to wear. The butt thigh area fits snugger than most wide leg pants but again not so tight or uncomfortable to not wear. The fabric is a brushed Jean fabric not just a woven cotton Jean so dog hair sticks to it like glue. They are a heavy quality fabric so not a summer pant. They are a keeper for me. If a gain a few pounds I can these being a no go.
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Reviewed in the United States on February 27, 2026
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