Class B AIS Transponder all boat types;2 x NMEA outputs for chart plotter/s or multiplexer/s of your choice;USB output/Setup;WiFi output;Designed by Quark-elec in United Kingdom
The A051T Class B AIS Transponder is the ideal solution to transmit your ship’s information, including; location, name, course, speed, etc.. The ideal transponder to fulfill your local Class B lega...Read More…
The A051T Class B AIS Transponder is the ideal solution to transmit your ship’s information, including; location, name, course, speed, etc..
The ideal transponder to fulfill your local Class B legal requirements, as well as for peace of mind and project tracking.
In addition to transmitting your AIS information to local boats and receiving stations, the A051T will also decode incoming AIS messages.
The A051T will receive and decode your GPS location as well as the AIS messages from local ships. Combining the AIS and GPS data, you will be able to view which other boats and ships are around and your position compared to them and the coastline.
You can view your AIS and GPS data on
Up to two chart plotters
Your laptop or computer through USB
Up to 4 WiFi-enabled devices
Straight forward setup.
Transmission of vessels own position, speed, heading, idetification etc. to other vessels and receiving stations within VHF range
Receives and processes GPS and all AIS message types.
A method of monitoring the position, speed and heading of other AIS vessels within VHF range.
The ability to plot the progress and changes in heading/speed of other AIS vessels within VHF range on a PC, chart plotter or wireless device.
AIS Transmitter ‘Standby’ option for power conservation or privacy.
Low-cost anti-collision / monitoring system
Complies with all necessary standards under the European R & TTE article
LED lights give real-time feedback. LEDs flash each time a message is successfully transmitted or received, so you can have confidence the A051T is transmitting your information.
In addition, you have the option to read the actual ‘raw’ AIS messages received, using our free application OceanCom.
AIS transmission rate: 2 Watts
AIS receiving range: 40nm
VHF connector port: Standard SO239/UHF Female connector. Connects to an external VHF/AIS antenna (requires standard PL-259/UHF Male Plug)
GPS connector: TNC female bulkhead connector for connection to an external GPS antenna. The A051T includes a built in GPS module and only requires a GPS antenna to be connected
POWER connector: 9 pin POWER/NMEA connector
POWER supply range: 12V – 35V
2 NMEA 0183 output ports (1x RS422 and 1x RS232): For connection to chart plotters and other NMEA0183 compatible equipment as desired.
USB output: Type B USB for easy connecting to your laptop or PC (Data viewing and configuration when required)
WiFi Output: The NMEA 0183 sentences are also transmitted through WiFi. It support Ad-hoc and Station mode WiFi (with and without a router). No configuration required for Ad-hoc WiFi.
LED lights confirm incoming and outgoing AIS messages, GPS, WiFi and Power
Perfect for use in all Class B boats (under 300 tonnes etc.): sailing boats or yachts, small fishing boats, etc..
Easy to install and use…
Step 1 – Decide where to put your transponder on your boat
A key advantage of this Class B Transceiver is that we’ve encased it in aluminium – to minimize interference from other equipment. This opens up many more places you can install the A051T, compared to most other transponders.
Step 2 – Choose your power source
The A051T Class B Transponder can be powered by a power supply ranging from 12v to 24v. This covers most power sources used on boats, and is a distinct advantage over transponders that are powered only by a 12v power supply.
Step 3 – What do you want to see?
The Class B Transponder will of course broadcast your location – but in addition, it also receives AIS signals from other ships in your area and receives your GPS location.
Your A051T transponder has input ports where you simply connect your aerials.
You will need to install two aerials:
A VHF antenna – to collect and transmit the AIS data (If you want to use the same VHF aerial as your radio communication, simply use a splitter before connection.)
A GPS antenna – used to pinpoint your accuate location
Step 4 – Transmitting your location (ON/OFF)
As this is a Class B transponder, you can decide when (or if) you want to transmit your location, using STANDBY mode in the Configuration software.
Step 5 –Which screen/s will you connect your A051T transponder to:
Chart plotter NMEA 0183 RS422
Chart plotter NMEA 0183 RS232
Windows or Linux laptop (using the USB input or WiFi)
Up to 4 wireless devices (phones, tablets or laptops) in Ad-hoc mode WiFi
Wireless devices through your Access point/router in Station mode Wifi
This Transponder works in both WiFi modes, Ad-hoc and Station modes:
Who will be able to see my transmitted AIS signal?
Nearby ships will be able to view your details using their AIS receiver, even in bad weather and poor visibility.
Around the world, AIS data from most ports, coastlines and internal waterways is uploaded to the internet by the local community. This means that, if you are in one of these areas; your teammates, partners and loved ones will be able to view your location, using one of the free online AIS websites, from anywhere in the world.
Whether for peace of mind or project tracking, this can be very useful.
What’s included: 1 x A051T AIS Transponder (class B)
1x WiFi antenna
1 x 9 pin POWER/NMEA cable
1 x USB cable
1 x CD containing Manuals, Configuration software and drivers included?
Available to add to your order:
IMPORTANT: Class B Transponder
AIS transponders themselves don’t need to be registered, however, each requires a unique and official 9-digit Maritime Mobile Service Identity (MMSI) number assigned to the vessel and its owner.
To obtain an MMSI number, you should contact the relevant authority in your country. Different countries have different authorities responsible for this service. If you are not sure, search ‘how to apply for an MMSI in (country name)’
Please Note: The QK-A051T Transponder will allow you input an MMSI number only once.
Please make sure you input the correct MMSI number before clicking ‘config’, as changes are not permitted after confirming.
Help and Support
For any technical questions regarding this product, you can visit the forum at https://www.quark-elec.com/forum/ and ask us your question, it’s regularly checked by our technical team and your question may already have been answered there.
Alternatively, contact us directly, with details of your setup or visit our tech forum and we will be happy to help.
No country selected, please select your country to see shipping options.
No rates are available for shipping to .
Enter your email address if you'd like to be notified when QK-A051T WiFi AIS Transponder (Class B) can be shipped to you:
Thanks! We'll let you know when the seller adds shipping rates for your country.
|Shipping Rate||Tracked||Ships From||First Item||Additional Items|
We recognize our top users by making them a Tindarian. Tindarians have access to secret & unreleased features.
We look for the most active & best members of the Tindie community, and invite them to join. There isn't a selection process or form to fill out. The only way to become a Tindarian is by being a nice & active member of the Tindie community!