So in the end Dagnall superbly killed the monster! :D He managed to patch the nmea4 .bin file to add the magnetic heading, facing a double constraint : send heading in an NMEA sentence that Sailgrib can decode, and alleviate for a bug in Sailgrib that zeroes the present heading value if a VHW senten...

Hi Dagnall, In complement of our email exchanges: Thanks a lot. Your summary is exact. My instruments mostly send NMEA data, and the course computer sends all of its data on both its NMEA and Seatalk Out Ports, so I can use any (and I have actually connected both). At least when not provided, the de...

Hi Luis,

I wish you enjoyed your navigation in Greece. In case you are safely back (which I hope !), I am still interested in the s/w modification you offered in your Wed Jul 21, 2021 10:55 am post.

Please let me know if and how this could be achieved.

Take care,
Bruno

Hi Dagnall, I am no expert. As I wrote in my July post, I only checked by sending sequences to Sailgrib, the for the boat heading (angle of the boat to North,not the course), that Sailgrib does decode correctly VHW, HDT and HDG. It does not read HDM in the present version. I sent this info to Henry,...

Hello Luis, Waooo, that is a great offer! I don't know when Sailgrib will take this into account. I had a great mail exchange with Henri on this and a few other points, he is aware of the problem. Let's get in touch in late September and see ho things are. I wish you a superb navigation in Greece, C...

Hi, My navigation s/w Sailgrib routing S/W (excellent btw!) has only one issue with my old Raymarine S1: w/ the last version of Sailgrib or previous ones it does not recognize HDM which is the only one NMEA sentence relevant to the boat heading provided by S1, which also sends incomplete formats for...

Hi Dagnall,
Your layout looks great.
Do you mean you are able to send datagrams or NMEA sentences
to the Seatalk port of your Smartpilot without any adapter circuitry ?
Thanks,
Bruno