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ACR AISLink Class B AIS Transceiver 2676
ACR AISLink Class B AIS Transceiver 2676

Brand New with Factory's Warranty
List Price: US$849.00
Our Price: US$719.00
You save US$130.00!

Availability:: Usually ships the next business day
Product Code: ACR2676

Description Extended Information

Class B+ AIS Transponder

The AISLink CB2 AIS Transponder is a fully compliant, waterproof Class B+ transceiver designed to help avoid collisions. Using advanced SOTDMA (Self Organized Time Division Multiple Access) technology from Class A transponders, the AISLink CB2 features inherent advantages, including a faster reporting rate and a higher output power in relation to all Class B products that use the older CSTDMA (Carrier Sense Time Division Multiple Access) technology on the market.

The CB2 needs to be configured by the user to enter the vessels MMSI number and other details. This can be carried out by a mobile App or a web based program:

  • For the Mobile iOS version, search the App store for ACR AIS Config
  • For the Moble Android version, search the Play store for ACR AIS Config

Using technology from Class A AIS, the CB2 has a faster reporting rate with reserved time slots for transmissions to ensure your broadcast does not get blocked in high traffic areas. The AISLink CB2 will transmit every 5 seconds while older Class B AIS units can only transmit once every 30 seconds. The CB2 also transmits at 5 watts of power, versus older Class B AIS that only transmit at 2 watts, broadcasting to a larger area for improved visibility.

Utilizing 99 acquisition channels and 33 tracking channels, the internal multi-GPS receiver continuously transmits your vessel information including position, speed, course and heading, ensuring an indication of the most accurate global positioning at all times. In addition to transmission of dynamic vessel information, the AISLink CB2 also continuously transmits static information including vessel name, call sign, vessel type, vessel dimensions, and MMSI number.

Programming static information into the AISLink CB2 proves effortless as the user has the ability to simply upload this information via Wi-Fi using ACR’s free mobile app. For increased flexibility for the maximum number of users, the app is conveniently available from either the App Store (Apple) or the Google Play Store (Android).

Upon completion of the quick and easy installation process, the AISLink CB2 receives and interprets messages from other AIS equipped vessels within range and then seamlessly communicates this information to other navigation devices on your vessel such as chart plotters, laptops or mobiles using the CB2’s NMEA 0183, NMEA 2000®, USB or WiFi outputs.

A primary benefit that users can rely on is the transmission priority provided by the AISLink CB2 due to the use of the SOTDMA access scheme versus CSTDMA. Use of SOTDMA guarantees the same AIS transmission priority as a class A transponder, ensures a faster reporting rate with transmissions every 5 seconds instead of every 30 seconds, and also ensures a higher output power of 5 Watts instead of 2 Watts. These features not only allow the CB2 to convey a more “real-time” picture of your vessel’s position, but also enables your transmissions to reach further.

Additional benefits include a multi-color LED indicator light communicating the ongoing operational status of the unit. Given that the CB2 also comes complete with an external GPS antenna, users have the ability to be transmitting AIS messages and enjoying the many benefits of the AISLink CB2 within minutes of install.

The AISLink CB2 provides a significant advantage in navigational safety, giving you the peace of mind that your vessel will be seen day or night on even the busiest waterways, regardless of what the weather may be.

As a leader in life-saving marine products for both professional and recreational use, ACR provides unparalleled safety and peace of mind with the AISLink CB2 AIS Transceiver.

Features and Benefits:

  • 5 Watts of Power - More than double that of older Class B units
  • 12 Times the Transmissions Per Minute – 12 Times Versus 2 transmissions with CSTDMA
  • Guaranteed Time Slot Reservations
  • Increased visibility to other vessels
  • FREE user-friendly mobile app for set up and controls
  • Wi-Fi, USB, NMEA 0183 and NMEA 2000 connectivity
  • Simple to install and use
  • Superior internal 99-channel GPS receiver
  • External GPS antenna (Included)
  • Multi-color LED indicator light
  • Receives and interprets messages from other AIS equipped vessels
  • Durable waterproof design
  • Low energy consumption


WARRANTY LENGTH: 2 YEARS + Extend your warranty 1 Year creating an account during set-up allowing ACR to send you information and updates regarding this product.

Limited Warranty

ACR Electronics will at its discretion, repair or replace faulty product free of charge excluding the cost of shipping. Proof of purchase shall be required for a warranty claim to be valid from the original purchaser. All claims shall be made in writing to ACR Electronics or an approved service dealer or distributor. ACR Electronics shall not be liable to the buyer under the above warranty:

  • for any repairs or modifications carried out using parts not supplied or approved by ACR Electronics and for work carried out other than by ACR Electronics or approved service dealers,
  • for any part, material or accessory that is not manufactured by ACR Electronics the consumer will be covered by the warranty offered to ACR Electronics by the manufacturer or supplier of such a component,
  • for product which has not been fully paid for,
  • for any product supplied by ACR Electronics to a customer under an alternative warranty or commercial agreement, for the cost of shipping product to and from the customer.

This warranty does not affect your statutory rights. This warranty is to be interpreted under United States law.



ATB1 Class B AIS Transceiver

Product Description:

Class B AIS Transceiver


Coastal Cruising, Sailing, Offshore Recreational, Charters


IPx7 (1 meter for 30 minutes)


0.36kg / 0.8lbs


2 Years (plus 1 on registration)


101 x 162 x 58mm

Temperature Range:

Operational: -5°F to +131°F (-15°C to +55°C)

AIS Transmitter Frequency range:

156.025 – 162.025 MHz

Receiver Sensitivity:

107dBm for 20% packet error rate

AIS Receiver Frequency range:

156.025 – 162.025MHz

Transmit Power (EIRP):

AIS – 5 Watt

Power Supply:

10.8 – 31.2 Vdc

GPS receiver:

High Sensitivity, 99 acquisition/33 tracking

Serial Ports:

NMEA 0183 [2 Rx, 2 Tx]

NMEA2000® [DeviceNet]

1 x USB

1 x WiFi IEC802.11 bgn


What information is transmitted?

Position reports (MMSI, Lat, Long, COG, SOG) for Class B (SOTDMA)

  • Every 3mins. when SOG < 2 knots
  • Every 30s when SOG >= 2 knots < 14 knots
  • Every 15s when SOG >= 14 knots < 23 knots
  • Every 5s when SOG > 23 knots

Vessel data (Name, call sign, dimensions, type etc.)

  • Every 6mins.

This means that if you are moored or in the marina your data may take some time to be visible on other peoples systems. Depending on your location visibility on Marine Traffic or Shipfinder websites may take much longer.

Can I use an existing GPS receiver or GPS data instead of installing an additional GPS antenna for the AIS?

No. The use of the internal GPS receiver is a requirement of the AIS regulations. The AIS can be used as a position source output by configuring it to output GPS position data (RMC NMEA sentence) although this is not generally recommended.

Can I change the MMSI or vessel details?

Always take great care when entering the MMSI number. Once programmed changing the MMSI number will require the AIS to be ‘unlocked’ by contacting ACR Electronics via the set-up app. This could take up to 2 days. Changing all other details entered is simple using the Mobile or Web based set-up app’s. Download the ACR AIS App on the App Store or Google Play.

How do I connect my CB2 AIS to my existing navigation electronics?

The CB2 comes with both NMEA0183 and NMEA2000 communication protocols.

To connect using NMEA0183 you will require some suitable connector block and the wiring information for your other manufacturer’s equipment.

To connect using NMEA2000 you will require a spur (drop) cable suitable to connect to the DeviceNet (male) connector on the AIS to an existing NMEA2000 backbone. An unused connection on the backbone must be available.

What type of radio antenna should I use?

The CB2 AIS transmits and receives on the VHF band so any good quality Broad Band Marine VHF antenna will be suitable.

There are AIS Tuned antennas available which are suitable but other narrow band or tuned antennas should be avoided. If a single antenna is to be used by VHF radio and the CB2 then an active antenna splitter should be installed.

What is the range of AIS?

This varies enormously depending on weather, VHF antenna height etc.

  • Typical transmit range for Class B is 10nm
  • Typical receive range for Class A targets is 20nm
  • Receive range can exceed 100nm in the right conditions

How do I configure my CB2 AIS?

The CB2 AIS needs to be configured by the user to enter the vessels MMSI number and other vessel details.
This can be carried out by a mobile App or a web based program:

  • For the Mobile Android version search the Playstore for ACR AIS Config
  • For the Mobile iOS vesion search the App Store for ACR AIS Config


Owners Manual View (pdf)
Brochure View (pdf)

Note: The price is subject to change at any time without any notice. Not responsible for any typographical errors. Any products can be cancelled from sale at any time.
  • All products sold here come with Full Manufacturer's Warranty
  • Email us at
  • ask@marinedeal.com for any quesitons
  • WarningWARNING: This product can expose you to chemicals including Di-n-hexyl Phthalate, DnHP, which is known to the State of California to cause reproductive harm, and Vinyl Chloride which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.

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