RMC-Recommended minimum specific GNSS data
$--RMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,x.x,xxxxxx,x.x,a,a*hh<CR><LF>
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+---+---------------------------------------- 3
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+--------------------------------------------------- 2
+---------------------------------------------------------- 1
NOTE Positioning system Mode indicator:
A = Autonomous
D = Differential
E = estimated(dead reckoning)
M = Manual input
S = Simulator
N = Data not valid
SSD-AIS ship static data
$--SSD,c--c,c--c,xxx,xxx,xx,xx,c, aa*hh<CR><LF>
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+------------------ 3
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+---------------------- 2
+--------------------------- 1
VBW-Dual ground/water speed
$--VBW,x.x,x.x,A,x.x,x.x,A,x.x,A,x.x,A*hh<CR><LF>
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+------------------------------ 2
+---------------------------------- 1
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+--------------- 7
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+---+---------------------------- 4
The Mode indicator field supplements the Status field. The Status field
shall be set to V=invalid for all values of Operating Mode except for
A=Autonomous and D=Differential. The positioning system Mode indicator
and Status field shall not be null fields.
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+--9
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+------- 6
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+---------- 5
+-------------- 4
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| +--- 11
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+----- 10
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+-------- 9
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+-------------- 7
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+-------------------- 5
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| | | +--- 10
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+--+------- 8
1. Ship's Call Sign, 1 to 7 characters
2. Ship's Name, 1 to 20 characters
3. Pos. ref. point distance, "A," from bow, 0 to 511 Meters
4. Pos. ref. point distance, "B," from stern,
0 to 511 Meters
5. Pos. ref. point distance, "C," from port beam,
0 to 63 Meters
6. Pos. ref. point distance, "D," from starboard beam,
0 to 63 Meters
7. DTE indicator flag
8. Not used
9. Checksum
1. Not used
2. Not used
3. Not used
4. Longitudinal ground speed, knots
5. Transverse ground speed, knots
6. Status: ground speed, A=data valid V=data invalid
7. Not used
8. Not used
9. Not used
10. Not used
11. Checksum
ANNEXE 4 DIGITAL INTERFACE
1. UTC of position fix
2. Status: A=data valid,
V=navigation receiver warning
3. Latitude, N/S
4. Longitude, E/W
5. Speed over ground, knots
6. Course over ground, degrees true
7. Date: dd/mm/yy
8. Not used
9. Mode indicator (See NOTE.)
10. Checksum
AP-11