On 26 Giu, 15:45, keithr <ke...@nowhere.com.au> wrote:
> Not directly GPS related but does anybody have a decode of the NMEA DSC
> and DSE sentences?
This is what I know, but I don't know the meaning of the content of
the message

hope it helps.
Claudio
www.claudegps.altervista.org
DSC,xx,xxxxxxxxxx,xx,xx,xx,x.x,x.x,xxxxxxxxxx,xx,a ,a*hh
Format Specifier
Address
Category
Nature of Distress or First Telecommand
Type of Communication or Second Telecommand
Position or Channel/Frequency
Time or Tel. No.
MMSI of ship in distress
Nature of Distress
Acknowledgement
Expansion indicator
DSE,x,x,a,xxxxxxxxxx,xx,c--c, .……… ,xx,c--c*hh
Total number of sentences
Sentence number
Query-Replay flag
Vessel MMSI
Data Set
Additional data sets
Data set