Thank you for sharing this Alastair.

It looks correct, we plan for more improvements for this logbook, so stay tuned.

Yep, very awkward. An I did a factory reset on Cerbo GX many times and tried with minimal configuration parameters and firmware update. At Signal K Server, just security config, nmea 2000 connection and derived data plugin and always same error. So last resource was to dig at logs with AI and that whtas solved.

Ok, please try two things:

Check the interface name on Signal K for the CAN interface, if it is can0 or vecan0, please try vecan1. Make sure to restart it after you make a change. See if you can connect it to first port (even temporarily) and if it makes any difference.

Independently, the first port is galvanically isolated, the second one is not. For NMEA connection, Victron's strong recommendation is to use the first port.

Is Victron GX connected to NMEA 2000? You need a special cable for that (you could also make your own, see this article)

If you verified the connection, make sure your GPS source is turned on (it might be the chartplotter).

When everything is working you should be able to go to Signal K Data Browser and search for navigation.position and it should show your current position.

If you haven't already, do check this tutorial, it explains though:

One more thought, please make sure the times on Cerbo GX and your Chartplotter are in sync and set to the same timezone (including daylight savings). If there is a time mismatch between the two, it could lead to problems like this.

Hi @SV-UNSInn there was a bug with RPMs, we just fixed it. It should work now.

We also added a new type of "Duration", which will convert seconds to hours. You can use it for engine hours.

Happy Saillogging!

Unfortunately this is an annoying Signal K bug. AIS data may override the boat name in some edge cases. It happens more frequently if you happen to have a DataHub but we have seen it happening without a DataHub too.

Signal K team has been working on a fix, here is a link to the tracker: https://github.com/SignalK/signalk-server/pull/1833

In the meantime, restarting Signal K should solve it.

Yes, perfect!

Hi,
thanks for your immediate response ... highly appreciated. When reading your advice, it popped up that I already had once the same problem and it was and still is hökens-anchor-alarm https://www.npmjs.com/package/hoekens-anchor-alarm after deleting the anchor-alarm everything is back to normal. Thank you.

Perfect. Thanks!

Here is an example of how additional data is captured per trip, from our logbook:

Screenshot 2025-02-25 at 5.04.16 PM.png

This will show up for you the next time you complete a trip, based on custom monitoring data you have added.

Thank you so much.
I'll try that.

OK thank you it's work perfectly !!! Very nice ...

Awesome thanks

Makes sense. I think we just won't recommend that particular sensor, since it's refresh rate is r fast enough for monitoring.

I'm really excited to have SailLogger on the boat. That you for making it available.

Hi Bill,

Actually, you didn’t miss it. We do have the capability to import GPX files, but this option isn’t available in the UI for several reasons:

Granular Data Requirements: Importing GPX files can be tricky because Saillogger requires granular data logging. Not every GPX capture provides the necessary detail, which may lead to inaccurate identification of trips and statistics. Stateful Design: Saillogger is stateful by design. Importing a track risks breaking this state by introducing inconsistent data over time periods that have already been processed. (Imagine a boat "beaming" in and out over a couple thousand miles in a single day!) Streamlined User Experience: Our data model is extremely rich, but to ensure a streamlined experience for regular users, we simplify what is processed and displayed. In practice, we normalize every account to a single boat, maintaining that boat’s state in great detail. For users with multiple boats, we create separate accounts.

That said, we’d love to help you add your deliveries. If you send us the GPX file, we can experiment with it to see if the import process makes sense.

We would need to have a plan for a clean fallback to ensure that Harmonie’s logbook and track remain accurate!

We have also discussed this with Victron. They will address it for all Cerbo GX Mk2s.