Milltech Marine News

June 2023

Any questions about what AIS you should get?

Our AIS Comparison guide is an quick and easy way to sort through the marketing fluff and find the unit that fits your needs best. It has been updated for 2023 and can be found on the AIS Transponder product page or link directly here.

March 2023

Vesper Marine Cortex Gets Long Awaited Software Update

Cortex just got even better. Introducing the new and improved Cortex 2.0 software update. There's a new sleek user interface for Cortex handsets and some big improvements to core VHF functions to ensure you never miss a word. Cortex software 2.0 features new Squelch EQ

automated squelch with manual fine-tuning, omni watch multichannel scanning, and VHF audio recording and playback. Find out more here.

Same-day Shipping
If placed by 3:00PM EST, Monday through Friday, most orders ship same-day (excluding domestic Class B AIS which must be programmed before shipping).

We Ship Internationally
Use our online Shopping Cart to make sure your location is served and to check shipping options and costs. For more information, click here. Please call or email with any questions.

em-trak B400 Class B AIS Transponder

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Your Price: $1,688.00

Retail Price:$1,876.00

Your Savings:$188.00(10%)

The em-trak B400 AIS Class B transponder is a high powered ruggedized AIS transceiver ideally suited for offshore and professional mariners who demand superior performance, functionality and reliability. The B400 transmits at a higher power (5W instead of 2W), significantly more frequently, and using the prioritised SOTDMA radio transmission protocol. This, combined with HF-AIS technology, translates into enhanced operational performance.

Questions about this item? Ask here.

Part Number: ET-427-0003

Availability: In Stock

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Free Class B AIS Programming

FCC regulations require Class B AIS units to be programmed with MMSI and vessel information before shipping to US addresses. Milltech Marine provides this service free of charge.

Common Questions About MMSI

To make it more convenient for you to provide vessel information, we have prepared this quick and easy online form. Please complete and submit at time of order.
We are required to have proof of valid MMSI, so please also send a copy of the issuing document.
If you do not have a copy of your MMSI assignment, contact the issuing authority or organization. To search the FCC licensing database, click here. For BoatUS information, click here.
Go here if you do not have an FCC Ships Station License and MMSI and wish to obtain one.

The B400 is a high-powered priority transmit AIS Class B transceiver that delivers ultimate reliability, enhanced range and advanced performance across the busiest waters and open ocean.

Designed for serious sailors and commercial applications, the B400 is a self-contained, fully integrated plug-and-play unit.

Suitable for internal or external installation, it has been certified weather and waterproof, and offers a integrated color display to remove the need for additional screens.

Easy to install and use, the B400 can be integrated with all common bridge systems, as well as offering a full range of advanced AIS functionality including alerts, target filters, vessel information lists, real time weather updates and more.

Features:

Certified high powered AIS Class B (5W SOTDMA)
High performance latest generation GPS
Ruggedized and impervious to extreme environments – water (IPx6, IPx7), damp, shock, vibration, temperatures
Suitable internal or permanent external installation
Robust ergonomic button and rotary-knob user interfaces with configurable multi-lingual menu options
Integrated high definition color display with night mode
ENC chart (C-MAP) with configurable AIS target overlay
Multiple functionality – collision, CPA, MOB, SAR, vessel lists, text messaging, weather, active monitoring, silent mode, plus much more
Professional live AIS AtoN information display
Plug & play connectivity - integrated WiFi, NMEA 0183 & NMEA 2000
Enhanced RF screening to protect against electromagnetic interference
Built-in power surge protection

Q: I see this comes with an antenna. I'm curious if I can use a splitter to use my VHF antenna or would this only work with its own separate antenna?

Asked by: Jennifer - 7/30/2021

A: The B400 comes with a GPS antenna but no VHF antenna. It requires a connection to a dedicated VHF/AIS antenna or it can be used with a VHF/AIS antenna splitter to share an existing VHF antenna. We sell appropriate antenna splitters here: https://www.milltechmarine.com/Transponder-splitters_c_36.html

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Answer provided by: Doug Miller (7/30/2021)

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Q: Does the b400 have a chart overlay built into it., and if so does it cover all oceans ?

Asked by: John Roberts - 12/27/2021

A: The B400 does include a basic chart with coastal outlines for the world. If you prefer to have high detail charts, you can install a CMAP chart via the micro SD card slot.

Was this answer helpful? 1 of 1 Customer(s) found this Answer helpful.

Answer provided by: Doug Miller (12/27/2021)

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