APPX. 6 DIGITAL INTERFACE
VDO: UAIS VHF data-link own-vessel report
!**VDO,x,x,x,x,s--s,x*hh<CR><LF>
12 3 4 5 6
1. Total number of sentences needed to transfer the message (1 to 9)
2. Message sentence number (1 to 9)
3. Sequential message identifier (0 to 9, NULL)
4. AIS channel Number (A or B)
5. Encapsulated ITU-R M.1371 radio message (1 - 63 bytes)
6. Number of fill-bits (0 to 5)
VDR: Set and drift
$**VDR,x.x,T,x.x,M,x.x,N*hh <CR><LF>
1 2 3 4 5 6
1. Direction, degrees (0.0 - 360.0)
2. T=True (fixed)
3. Direction, degrees (0.0 - 360.0)
4. M=Magnetic (fixed)
5. Current speed (0 - 99.99)
6. N=Knots (fixed)
VTG: Course over ground and ground speed
$**VTG,x.x,T,x.x,M,x.x,N,x.x,K,a*hh <CR><LF>
1 2 3 4 5 6 7 8 9
1. Course over ground, degrees (0.0 - 359.9)
2. T=True (fixed)
3. Course over ground, degrees (0.0 - 359.9)
4. M=Magnetic (fixed)
5. Speed over ground, knots (0.00-9999.9)
6. N=Knots (fixed)
7. Speed over ground (0.00 - 9999.9)
8. K=km/h (fixed)
9. Mode indicator (A=Autonomous, D=Differential E = Estimated (dead reckoning)
M=Manual input S=Simulator N=Data not valid)
WPL: Waypoint location
$**WPL,llll.ll,a,yyyyy.yy,a,c--c*hh<CR><LF>
1 2
3
1. Waypoint latitude (0.000000 - 9000.00000)
2. N/S
3. Waypoint longitude (0.00000 - 18000.00000
4. E/W
5. Waypoint identifier (No use)
ZDA: Time and date
$**ZDA,hhmmss.ss,xx,xx,xxxx,xx,xx<CR><LF>
1
2 3
1. UTC (000000.00 - 240001.00)
2. Day (01 - 31)
3. Month (01 -12)
4. Year (UTC, 0000 - 9999)
5. Local zone, hours (-13 to ±13), No use
6. Local zone, minutes (00 to ±59), No use
AP-32
4
5
4
5 6
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