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CONFIGURATION AND SPECIFICATIONS
(2.5.9)
DSC – Digital selective calling information
$ --DSC,xx,xxxxxxxxxx,xx,xx,xx,x.x,x.x,xxxxxxxxxx,xx,a,a*hh<CR><LF>
Category
Address
Format specifier
(2.5.10)
DSI – DSC transponder initialize
$--DSI,x,x,xxxxxxxxxx,xxx,xx,xxxxxxxxxxxxxxxxxxxxxx,xx,c--c,.....,xx,c--c,a*hh<CR><LF>
Vessel course, degrees true
Vessel MMSI
Message number
Total number of messages
(2.5.11)
DSR – DSC transponder response
$--DSR,x,x,xxxxxxxxxx,xx,c--c,......,xx,c--c,a*hh<CR><LF>
Data set '1'
Vessel MMSI
Message number
Total number of messages
(2.5.12)
DTM – Datum reference
$--DTM,ccc,a,x.x,a,x.x,a,x.x,ccc*hh<CR><LF>
Lon offset, min, E/W SGS85 = S85
Lat offset, min, N/S PE90 = P90
Local datum subdivision code
Local datum: WGS84 = W84
WGS72 = W72
SGS85 = S85
PE90 = P90
User defined = 999
IHO datum code
1-10
Nature of distress
MMSI of ship in distress
Time or Tel. No.
Position or Channel/frequency
Type of communication or second telecommand
Nature of distress or first telecommand
Command set 'n'
Geographical area, 0,01 min
Vessel type
Expansion indicator
Data Set 'n'
Additional data sets
Reference datum WGS84 = W84
Altitude offset, m WGS72 = W72
Expansion indicator
Acknowledgement
Expansion indicator
Command set '1'
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