Multifunction Displays (MFD) – The heart of your NMEA 2000 network

Learn why MFDs are crucial for modern boats, what functions they offer, and how they integrate with NMEA 2000 and Actisense products.

Multi-Function Displays (MFDs) are a central part of modern NMEA 2000 networks. They serve as the hub for your boat's electronics, allowing you to monitor and control multiple functions from a single device.

What is a Multi-Function Display?

MFDs come in various sizes and designs – from touchscreens to models with buttons. They are more than just screens; they can display AIS data, function as chartplotters, fishfinders, and sometimes even radar. Many modern MFDs have Wi-Fi and Bluetooth for connecting to mobile apps.

Why is MFD important in an NMEA 2000 network?

NMEA 2000 data is binary and not human-readable. MFDs make this data understandable by displaying it in graphical and numerical formats. Without an MFD, it is difficult to understand the network's status and functions.

Common features of modern MFDs

• Internal GPS – saves time and money compared to external GPS.
• Support for AIS, radar, and fishfinder.
• Integration with Wi-Fi and Bluetooth for mobile apps.

MFD and Actisense products

The Actisense EMU-1 converts analog engine data to NMEA 2000 PGNs, allowing the MFD to display engine data such as oil pressure, temperature, and RPM. Combine the EMU-1 with an MFD for alarm functions like Engine Over Temperature.

The Actisense NGW-1 converts NMEA 0183 data to NMEA 2000, allowing older instruments to integrate with the MFD. This is a cost-effective way to upgrade your network.

Is MFD still relevant with Wi-Fi and apps?

Yes. Wireless connectivity is convenient but should not be used as the primary method for safety-critical data. Wi-Fi can suffer from interference and outages, making MFD and NMEA 2000 the safest option for navigation and engine data.

Why choose MFD over apps?

Most apps use NMEA 0183, which has limited functionality compared to NMEA 2000. To monitor engine data and critical parameters, NMEA 2000 and an MFD are required.

Summary

MFDs are the heart of your NMEA 2000 network. They provide access to important data, increase safety, and enable integration with advanced features such as radar, AIS, and engine data.