Network AIS Receiver NWD-01T with decode+timestamp

NWD-01T is an AIS receiver specifically designed for system integration, shore-based monitoring, and vessel tracking applications. The product adopts a dual-channel parallel reception architecture and supports dual output of raw AIS messages and decoded JSON data. It features a built-in high-precision GPS/BeiDou timing module with microsecond-level timestamp resolution, making it particularly suitable for users who require in-depth AIS data processing, time synchronization analysis, or secondary development.

With its compact size (220 × 160 × 72 mm) and lightweight design weighing only 1,150 g, the device supports 12 V DC power supply and can also be powered by a power bank. It is suitable for a wide range of deployment scenarios, including portable, fixed, and vehicle-mounted applications.

Typical Applications
Shore-Based AIS Vessel Monitoring System: Connects to VTS (Vessel Traffic Services) systems or port monitoring platforms to obtain real-time vessel traffic information in the surrounding area.
AIS Data Collection and Research:Collects vessel track data for traffic flow analysis, route planning, and vessel behavior research.
Multi-Sensor Fusion Systems: Integrates with radar, ADS-B, meteorological sensors, and other systems to provide AIS data with a unified time reference.
Portable Temporary Monitoring Deployment: Enables rapid deployment of AIS monitoring capabilities for large-scale events, emergency response, or temporary operational areas.
Bridge Collision Avoidance and Warning System: Deployed at bridges or critical points along waterways to receive AIS information from passing vessels in real time. Combined with data such as navigational clearance height and channel width, the system can provide warnings for vessels that are excessively high, deviating from the designated channel, or approaching abnormally, providing a reliable source of real-time vessel traffic data for active bridge collision prevention.

NWD-01T includes:  

① NWD-01T unit *1

② Power Cable *1

③ AIS Antenna(Long Version) & Clamp *1

④ AIS Antenna Cable 10 meters *1(please indicate if you need longer cable)

⑤ Ethernet Cable *1 

⑥ GNSS Antenna *1

● Multi-Band AIS Signal Reception
The device supports simultaneous reception of the standard AIS channels, AIS 1 (161.975 MHz) and AIS 2 (162.025 MHz). Optional support for the two extended frequencies, 156.775 MHz and 156.825 MHz, enables the device to cover a broader range of maritime VHF communication frequencies, meeting AIS signal acquisition requirements in specific regions and application scenarios.
● Dual-Format Data Output for Easier Development
The device supports two output formats: AIS raw messages (NMEA 0183 format) and JSON plain text. The JSON plain-text output directly provides decoded vessel dynamic data, including MMSI, latitude and longitude, speed, heading, and other information. Users do not need to independently parse the AIS protocol, significantly reducing system development time.
● Timestamp Output
The device features a built-in high-precision GNSS timing module and outputs data with UTC timestamps, including nanosecond values, providing microsecond-level timestamp resolution. This feature makes the NWD-01T particularly suitable for research and engineering applications requiring multi-sensor data fusion, Time Difference of Arrival (TDOA) analysis, and high-precision time synchronization.
● Flexible Network Integration
The device supports both TCP and UDP network transmission protocols and can connect to the user network via either a static IP address or DHCP. The device can be connected directly to a computer or integrated into an existing LAN through a router, without requiring an additional serial server or protocol converter.
● Signal Strength Output (Optional)
Optional output of the Received Signal Strength Indicator (RSSI) for each AIS message is available, providing data support for signal coverage analysis, interference troubleshooting, and antenna deployment optimization.
● Portable, Lightweight, and Plug-and-Play
The device features a compact and lightweight design and operates on 12 V DC power, with a power adapter included as standard. It can also be powered by a 12 V portable power bank. An AIS antenna and GPS/BeiDou antenna are included as standard, enabling plug-and-play operation right out of the box.
● Comprehensive Support for Secondary Development
Clear network communication protocol documentation and data format examples are provided. OpenCPN display software is also included, making it convenient for users to perform functional verification and testing before system integration.
● Customization Support
Supports customer-specific OEM customization.
Supports ACARS/ADS-B/AIS integration.

● Surge Protector: Provides protection against power surges to ensure the safety of the device.
● IP67 Waterproof Version: We offer the NWD-01TP, equipped with a weather-resistant enclosure and IP67 waterproof rating, specifically designed for outdoor use. 
● Dual Unit for High Reliability: Incorporates dual units to enhance reliability and ensure continuous operation.
● OEM/Customization. All our products can be supplied fully customized with your brand and logo. We can even do customized form factors, enclosures and packages on your requirement. This OEM/Customization service enables you to have your own unique product in minimal time.
● AIS IQ data output and storage. We provide the capability to output and store IQ data for analysis purposes. Please feel free to contact us with your specific requirements.
● Integration of AIS, ADS-B, and ACARS: We offer integration of AIS, ADS-B, and ACARS receivers, commonly referred to as a 3A receiver. We can accommodate this configuration.
● We welcome any additional requirements you may have, and we are eager to collaborate with you to meet your needs!

Below is an example of timestamped AIS data. Timestamp is at the beginning of messages and connect with standard AIS messages via _.

Below is an example of timestamped decoded AIS data. Timestamp is in the item “time”.

Timestamp is comprised of three parts and the three parts are separated by blank space.