* Notes for docs

Please see http://catb.org/gpsd/AIVDM.html or [[https://www.itu.int/rec/R-REC-M.1371/en][ITU 1371]] for the details of messages.

** mid.csv

The prefix is used as DAC for binary messages or as the 1st three of the MMSI.

http://www.itu.int/online/mms/glad/cga_mids.sh?lng=E
