Re: xgps & AIS Data

[Владимир Калачихин]

Hi Gary!
13.04.2020 23:18, Gary E. Miller пишет:
> > Sorry, it is a "Static & Voyage Data", and it is correct.
>
> That was also my understanding from the standard (Rec. ITU-R  M.1371-4)
>
> So this still looks wrong to you?

No. It looks like right.
However, the client application will need to collect several messages 
(by mmsi) to get full information about a specific vessel. It doesn't 
look very elegant.


> Here is doc on message 8, doc 200, fi 10:
> http://www.e-navigation.nl/content/inland-ship-static-and-voyage-related-data
>
> I'm not sure how to read that...
>
> Looks like shiptype is 14 bits.
This may not be true.
From this: https://www.navcen.uscg.gov/?pageName=AISMessage8

"Since the data content of this binary message is defined by the 
application, Message 8 is an Application Specific Message"

Perhaps this message should not be decoded at all.



Владимир Калачихин