SKU: 48109600337

em-trak B923 Class B AIS Transceiver w/VHF Splitter - 2W CSTDMA

Sale price$369.32 Regular price$410.36
Save 10%

Pay in installments of $102.59 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 24 - Aug 29

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

em-trak B923 Class B AIS Transceiver w/VHF Splitter - 2W CSTDMAB923 Class B AIS Transceiver with VHF Splitter 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. Get the most from your on the water experience

B923 Class B AIS Transceiver with VHF Splitter - 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.

Get the most from your on-the-water experience with the B923, a 2W CSTDMA AIS Class B transceiver. Small and lightweight, it delivers em-trak's advanced AIS performance to ensure you see all information and targets, even at maximum range, and with the lowest power consumption in its class.

The B923 is equipped with an integrated VHF antenna splitter, which enables your transceiver to share your existing VHF antenna without any loss of performance. It offers quick and simple installation, with built-in intelligent connectivity, including an integrated next-generation GPS receiver and antenna and em-trak's unique FLEXI-FIT bracket system to get you up and running in no time at all. The dual NMEA2000 0183, coupled with serial ports, USB, optional Wi-Fi, and Bluetooth also make connecting to all your tablets, PCs, display, and navigation devices easy and simple.

Features:


  • Certified AIS Class B 2W CSTDMA

  • 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: -25C to +55C

  • Storage temperature: -25C to +70C

  • 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: 2A

  • Average power consumption (at 12V): 2.9 W

  • Galvanic isolation: NMEA 0183 inputs only, NMEA 2000, VHF antenna port

Connectors:


  • VHF antenna: SO-239

  • VHF radio: 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

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: 48109600337

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 27 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Chris
Belleville, US
★★★★★ 5
Very nice funnel
Color: Black, Size: 58mm
58mm fits perfect on a Pullman basket. Good quality as well. Be careful the magnets are strong the benefit of this design though is, it is a tamp through. Keeps the mess to a minimum transferring from dosing cup to portafilter, keeps your grounds in the basket during distribution as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
C
Verified Purchase
Chris C.
Massapequa, US
★★★★★ 5
makes it easy to pour into and wdt your portafilter without making a mess
Color: Black, Size: 51mm
Did you know there are 2 different types of dosing funnels, one with a inner collar/lip and one with an outer one? the normcore dosing funnel has an outer collar/lip, which means it secures to the outside of the portafilter basket, keeping it lined up. i didn't realize when i bought it, but the advantages to the outer lip is that there is no space or gap when the dosing funnel is removed (the inner lip takes up space along the edge of the basket, leaving a ring of space without coffee grounds). having the lip on the outside means, when you're done with your wdt, you don't have to do anything else besides tamp. at first, i was getting grounds all over the place when i was tamping because the grounds would push out to the sides as i was pushing down. i realized that the tamp (normcore v4 tamper) fit perfectly in the dosing funnel, so before i removed the funnel, i would lightly tamp with the tamper, giving me a little more space to place the tamper without worrying about grounds going all over the place. the magnets on this dosing funnel work pretty well, although, depending on your basket, it may work better than others. when magnetically attaching the funnel to different baskets, flipping the funnel upside down and shaking, holding the basket, the dosing funnel held pretty securely to the pressurized baskets that came w/ my delonghi, as well as the basket that came with my bottomless portafilter. the ims precision competition basket however, doesn't hold as securely. i thought at first it was because the lip of the basket was too big, but it turns out it's the same size as everything else. it turns out that while most of the top of the basket is flat, the inner edge is raised, maybe to help keep grounds from coming out. that raised bump on the top of the basket, is taller than the other baskets, so the metal that is to come in contact with the magnet is further away compared to the other baskets. still, it holds it securely enough while using it normally, so i won't be doing any modifications to the ims basket. the normcore also flares out at the top, making it wider. this helps with wdt-ing, allowing to work at more angles compared to the straight walled versions. it also makes pouring your grounds into the basket easier. although a little more expensive compared to other dosing funnels, i am very satisfied with how it makes it easy to wdt and tamp without making a mess. there was a little learning curve/trial and error to find the best way to use it, but i figured it out on day 2. would definitely consider buying another if i get a different machine with a different portafilter size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 21, 2024
K
Verified Purchase
Kevin
Houston, US
★★★★★ 5
Good Upgrade over steel or plastic nice height
Color: Black, Size: 58mm
Pretty good quality. Not a perfectly aligned fit ( interior circle mostly matches up ) Be aware if you have a Stainless Steel portafilter like my premium ECM Synchronika's it will be a weak magnetic fit. Adequate, but not firm by any means. Quite the flare in this collar but the height is good. Much lighter than Steel, more durable than plastic. Half the price of a colored plastic collar with much weaker magnets.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
C
Verified Purchase
Chris Jung
Boise, US
★★★★★ 4
High quality and fits well, I just wish the magnets were a little stronger
Color: White, Size: 51mm
It looks modern and stylish. The funnel fits my 51mm portafilter very well and does stay put if you're careful inverting it. It's solidly built and feels durable. It greatly helps keep the countertop tidy and allows me to use a large dose before tamping. The one improvement I would ask for is slightly stronger magnets that would hold more securely when I invert it. I tried to place it over the cup of grounds, and the funnel slipped off when I flipped them back over. It kinda works, you just have to be super careful. Better to just pour the grounds into it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2025
L
Verified Purchase
Larry B.
Carnegie, US
★★★★★ 5
Excellent Funnel
Color: Black, Size: 58mm
Material is high quality. Magnets are strong. Funnel opening is wide. Angle of descent to the portafilter is perfect. Stays on the portafilter very strongly. I am extremely happy with this dosing funnel.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026

recommand products