QK-A028 AIS Receiver + NMEA 2000 converter + GPS

$203.73 ($169.78 excl. VAT)

NMEA 2000 AIS receiver with GPS.

Simply plug and play with your NMEA 2000 network for the ultimate convenience, no configuration required.

3 simultaneous data output connections:

  • NMEA 2000 network
  • NMEA 0183  output
  • USB output

In stock



The A028 combines dual channel AIS and GPS data to deliver your data via NMEA 2000 and NMEA 0183 simultaneously.

Simply plug and play with your NMEA 2000 network for the ultimate convenience and flexibility, no configuration required.

3 simultaneous data output connections:

  • NMEA 2000 network connection to your N2K backbone will provide AIS and GPS data to your complete N2K network, chart plotter, radio, and other connected devices and instruments (including informing your navigation software for plotting way-points and collision avoidance)
  • NMEA 0183 RS422 output
  • USB output to a laptop of your choice (or USB OTG tablet or phone)


The advantage of an integrated GPS is that you can see not only where other ships are, but crucially where you are in comparison with them and the coastline.

This is the ideal AIS and GPS multiplexer for your convenience.

  • Compact dual channel AIS receiver
  • Multiplexer: combines AIS and GPS
  • View your AIS data and location through NMEA 2000, NMEA 0183 in RS422 and USB simultaneously if desired
  • AIS range: up to 20 nautical miles
  • Compatible with chart plotters and other AIS/GPS receiving devices and instruments, Windows, Mac OS X, Linux systems and USB OTG tablets and chart plotters


  • Two independent receivers monitor AIS channels (161.975MHz &162.025MHz) and decode both channels simultaneously
  • Combines AIS and GPS messages, and outputs as a seamless stream of data
  • Sensitivity down to -105 dBm@30% PER
  • AIS reception range: up to 20 nautical miles
  • BNC connector for 50 Ohm VHF antenna
  • Built-in GPS module to provide positional data (simply connect a GPS antenna)
  • Powered SMA connector for 50 Ohm GPS antenna
  • NMEA 2000 (N2K) output
  • NMEA 0183 RS422 message output – baud rate 38400bps (also connects to NMEA 0183 RS232 when used with the Quark-elec Protocol Bridge (AS03)
  • Additional NMEA 0183 output through USB OTG
  • Plug & play connectivity with chart plotters and PCs
  • Compatible with Windows XP,7,8,10, Mac OS X, Linux systems


What’s included?

  • 1 x QK-A028 with NMEA 2000 connection cable
  • 1 x NMEA 0183 RS422 connection cable
  • 1 x USB cable
  • Protective cover/insert for NMEA 0183 and USB, protects the connections when not in use
  • 1 x setup guidebook



QK-A028 has the following connections/indicators:

  • AIS antenna connector – standard BNC female 50 Ohm connector. An active VHF antenna splitter (e.g. QK-A015-TX ) is required if one VHF antenna is shared by the QK-A028 and VHF voice radio.
  • GPS antenna connector – powered SMA connector for 50 Ohm GPS antenna. Built-in GPS module which supplies positional data in addition to the AIS data. Simply connect the chosen GPS antenna.
  • NMEA 2000 (N2K) connection – the NMEA 2000 network cable is integral to the QK-A028 for an easy plug and play connection to your NMEA2000 backbone. The majority of all NMEA 0183 messages are converted to NMEA 2000, and the full list of conversions can be found in the manual.
  • NMEA 0183 output connectors – the QK-A028 can be connected to NMEA 0183 RS422 AIS or GPS compatible equipment including chart plotters and multi-functional displays. An NMEA 0183 RS 422 cable is included for ease of connection. (also connects to NMEA 0183 RS232 when used with the Quark-elec Protocol Bridge (AS03)
  • USB connection – a micro USB port outputs NMEA 0183 messages.
  • LED lights – the QK-A028 features three lights that indicate power (top, red), AIS (centre, green), and GPS (bottom, green) status respectively.


Optional: If using the NMEA 0183 output – Will your device need a Protocol Bridge?

This product uses the MNEA0183 RS422 protocol (differential signal), however, some chart plotters or devices may use the older NMEA RS232 protocol (single-ended signal).

Some customers have found that their Garmin products use the older RS232 connection. This is not a problem as our QK-AS03 Protocol Bridge connects NMEA RS232 wiring to NMEA0183 RS422 and vice versa. The QK-AS03 Protocol Bridge is easy to install using a simple ‘plug ‘n’ play’ connection with no setup or configuration needed.

You will probably need one if you are connecting to a Garmin device or some Raymarine products. The easiest way to check is to look at the input/output connections on the device that you will connect the multiplexer to. If the input/output connections on your device (chart plotter, depth reader, etc.) have a TX, RX or GND connection, you will need to use a protocol bridge.

If in doubt, please do not hesitate to contact us for advice.


Available to add to your order:


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 set up and we will be happy to help.

Useful Links:

Manual / Drivers

Manual / Drivers

Setup Guide

QK-A028 Basic Setup Overview.



Detailed technical specifications. (The ‘Technical Application Note’).



The QK-A028 comes pre-loaded with a driver.

The device driver is a file that lets the computer know the configurations and specification of the AIS receiver. In case you’ve had software issues the driver can also be downloaded here.

AIS Receiver comparison guide

AIS Receiver comparison guide

For mobile view and PDF click here

FeaturesA021A024/026A026+A027 A027+ A028A051
DescriptionFunctionEntry level AIS
Single channel

USB dongle
Dual channel AIS receiver
(+GPS in A026)

Combines AIS (+GPS) and NMEA 0183 input

Outputs WiFi, USB and NMEA 0183
QK-A026-plus NMEA 2000 AIS Receiver with NMEA Multiplexer+N2K Converter + WiFi + GPS

to USB/WiFi/NMEA 0183/NMEA 2000
Dual channel AIS+GPS receiver, with SeaTalkTM to NMEA converter

Combines AIS, GPS and SeaTalkTM input

Outputs WiFi, USB and
NMEA 0183
QK-A027-plus NMEA 2000 AIS + GPS receiver with NMEA multiplexer and ethernet

Outputs Ethernet, Wifi, N2K, USB
NMEA 2000 AIS receiver + GPS

Outputs USB, NMEA 0183 and NMEA 2000
WiFi AIS Transponder
Class B

Outputs WiFi, USB and 2 x NMEA 0183
AIS dual channel
AIS channel hopping. (A single channel receiver that ‘hops’ between two AIS channels)[1]
AIS sensitivity (@30% PER)-104dBm -105dBm -112dBm -104dBm -112dBm-105dBm -109dBm
AIS range[2] up to...12nm 22nm50nm20nm 50nm20nm40nm
AIS antenna connectionSMA
NMEA 0183 input
SeaTalkTM bus input (SeaTalk
GPS module integrated
(requires GPS antenna)

SMA (A026 only)



Power source Powered throughUSBUSB12V - 15VSeaTalkTM bus (12V)12V - 15VN2K bus (12V)12V - 35V

AIS+GPS+SeaTalk+NMEA 0183


AIS+GPS+SeaTalk+NMEA 0183

USB NMEA 0183 output
NMEA 0183 output (RS422)✓x2
RS422 + RS232
NMEA 2000 network
WiFiAd-hoc and Station modes
Option to disable WiFi
Configuration through USB
port. Configuration requires
Windows PC
not required
devices and
through USB
Chart Plotters
Android/iOSUSB OTGWiFiWiFiWiFiWiFiWiFi
[1] Manually adjustable hopping interval rates (0.25 seconds, 1 second, 30 seconds and auto-hopping) Channel hopping will increase the number of messages received, in comparison with single channel receivers. However, part of some multi-AIS messages may be lost, due to the hopping nature of the product. If both the quantity and the completeness of AIS messages is important to you, we recommend the dual channel receivers.
[2] Mounted on a masthead, 20 feet above sea level.
* SeaTalk™ is a registered trademark of Raymarine.

You may also like…