APPENDIX 3 DIGITAL INTERFACE
VHW - Water speed and headings
$**VHW,x.x,T,x.x,M,x.x,N,x.x,K,*hh <CR><LF>
1 2 3 4 5 6 7 8
1. Heading, degrees (0.00 - 360.00)
2. T=True (fixed)
3. Heading, degrees (0.00 - 360.00)
4. M=Magnetic (fixed)
5. Speed, knots (0.00 - 9999.99)
6. N=Knots (fixed)
7. Speed, knots (0.00 - 9999.99)
8. K=km/hr (fixed)
VSD - UAIS Voyage static data
$**VSD,x.x,x.x,x.x,c--c,hhmmss.ss,xx,xx,x.x,x.x*hh<CR><LF>
1
2
3
4
1. Type of ship and cargo category (0 - 255)
2. Maximum present static draught (0 to 25.5 meters, null)
3. Persons on-board (0 - 8191, null)
4. Destination (1 - 20 characters, null)
5. Estimated UTC of arrival at destination (000000.00 - 235959.99)
6. Estimated day of arrival at destination (00 to 31(UTC))
7. Estimated month of arrival at destination (00 to 12(UTC))
8. Navigational status (0 - 15, null)
9. Regional application flags (0 - 15)
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 (0.00 - 360.00)
2. T=True (fixed)
3. Course over ground, degrees (No use)
4. M=Magnetic (No Use)
5. Speed over ground, knots (0.00-99.94)
6. N=Knots (fixed)
7. Speed over ground (0.00-99.94)
8. K=km/h (fixed)
9. Mode indicator (A=Autonomous, D=Differential E=Estimated (dead reckoning)
M=Manual input S=Simulator P=Precision)
XDR - Transducer measurements
$**XDR,a,x.x,a,c,c,.....................a,x.x, a,c...c*hh<CR><LF>
1 2 3
1. Transducer type, transducer no. (C, A, F, N, P, R, T, H, V)
2. Measurement data, transducer no. (Transducer no. N)
3. Units of measure, transducer no. (Transducer type, transducer no. N)
#1=C C
#1=A D
#1=D M
#1=F H
#1=N N
#1=P B
#1=R I
#1=T R
#1=H P
#1=V M
4. Data, varialbe number of transducers
5. Transducer "n"
AP-30
5
6 7 8
9
4
5
5