The first AIS class B transponder that eliminates overall cabling from typically 3 cables run for the common AIS design to one cable only
The first AIS class B transponder that eliminates antenna cables entirely, with the "all integrated design". 
º 12V DC nominal power supply can be used (or anything between 9.6 V and 15.6 V)
º Continuous overvoltage protection to 150 Volts
º Electrostatic discharge protected to 3000 Volts
º VHF electronics and GPS electronics all in one housing 
º VHF antenna integrated
º Active GPS antenna integrated
º Installed above the vessel’s deck thanks to exceptional elements protection (IP69)
º Fully conforms to EN60945 maritime electronics standard and AIS Class B standard ( IEC 62287-1)

The Nauticast™ includes the innovative 3-in-1 Graphical display with 3 different views at a fingertip: Alphanumeric, Radar View and Fairway view. With different zoom-levels, this representation of the surrounding traffic scenario can be selected directly using cursor keys.

The Nauticast™ software enables you to automatically check, read out/trace and evaluate the data received from your sensor interfaces. All sensor inputs are configurable and have built in test programs for evaluating and troubleshooting your connections.

The Raymarine AIS250 Receiver module is a 'listen only' AIS receiver that easily integrates with an existing VHF antenna using a built in VHF splitter. The AIS250 then interfaces to Raymarine multifunction displays, allowing AIS targets to be graphically overlaid in both the chartplotter and radar modes.

AIS Aids to Navigation (AtoN) is the latest application of AIS technology. The AIS AtoN transponder can be installed in lighthouses, lanterns, buoys, other fixed and floating Aids to Navigation, or offshore platforms to achieve greater functionality by monitoring and broadcasting their status and other information. There are three types of AIS AtoN:

● Type 1 - no receiver (transmitter only) using ATDMA.

Class-A Universal AIS Complying with IMO MSC. 74(69) Annex3, IEC 61993-2, ITU-R M.1371-1, ITU-R M.493-9, ITU-R M.825(DSC), IEC-60945, IEC-61162-1.
Displaying navigational data based on Dynamic / Static data.
Completely compatible with all system using NMEA standard.
Edition of user message on navigation & ship securities is available.
GLONASS/GPS function available receiving Signal from Russian Satellite.
Interfaces with RADAR, ECDIS, GYRO COMPASS, and external GPS, etc.
Easy identification on other ship’s status by providing electronic chart data.
System self-restoring function enhances stability.
Adopted user-friendly one touch keypad.

HEA851 B-AIS is a new version of marine navigation Automatic Identification System designed by HHEE independently. The integration with information processing, VHF radio data transfer and GIS enables HEA851 to achieve the information transfer and display from ship to ship and ship to coast, which is so important to the safety for a ship on voyage.

Use CSTDMA technology. 。 This technology is widely used internationally AIS Class B standard, especially for China, the truth.

- Can be used with any international standard AIS ship station (A type and B type), AIS-SART, base stations, beacons AIS communicate with each other.

 - Time to send the ship static and dynamic data, feel free to send the default security information.

- Full channel design.

- Frequency, the work area can be controlled by the base station by remote command switch. And island areas in the river can have the use of the desired results.