Frequently asked questions about Actisense, Raymarine and NMEA – Complete guide to compatibility

Get answers to the most frequently asked questions about EMU-1, W2K-1, SeaTalkNG, NMEA 2000, and other popular marine network solutions. We help you choose the right products and understand how they work together.

Over the past year, we have helped thousands of customers with everything from simple purchases to advanced troubleshooting on large installations. We always focus on what you, the customer, want to know. Here are the most common technical questions we have received during the year:

Does Actisense EMU-1 work with Raymarine Axiom MFD?

Yes, EMU-1 works with Raymarine Axiom MFD and all NMEA 2000-certified displays that can show engine data. The EMU-1 sends several PGNs for engine and transmission data. How these are displayed depends on the MFD Manufacturer and their menus. Some allow multiple engines per page, others only one.

For specific questions about your MFD, we recommend contacting the Manufacturer directly.

Will Actisense W2K-1 work with Navionics and OpenCPN?

Yes, W2K-1 has been tested against the most popular apps, including Navionics and OpenCPN. See the full compatibility list here: W2K-1 compatible apps. For OpenCPN, a detailed guide is available here: Connect W2K-1 to OpenCPN.

Is SeaTalkNG the same as NMEA 2000?

Yes, at the protocol level, SeaTalkNG and NMEA 2000 are identical. The difference lies in the physical layer: NMEA 2000 uses DeviceNet M12 connectors, while STNG has Raymarine's own cables. With adapter cables like Raymarine A06045, you can easily connect STNG to NMEA 2000.

Is SeaTalk 1 the same as NMEA 0183?

No, SeaTalk 1 and NMEA 0183 are different protocols and require a converter to communicate. SeaTalk 1 uses 3 wires (12V, GND, data), while NMEA 0183 uses a transmit and receive pair.

Can I change my NGT-1 to an NGW-1?

Unfortunately, this is not possible due to labeling and product database. If a unit is changed, it can create confusion during installation and service, as well as problems with returns or testing.