Furuno 1815 Operator's Manual page 140

VWT- True Wind Speed and Angle
$**VWT,x.x,x,x.x,N,x.x,M,x.x,K<CR><LF>
1 2 3 4 5 6 7 8
1. Measured wind angle relative to the vessel, degrees (0.0 to 180.0)
2. L=Left semicircle, R=Right semicircle
3. Velocity, knots (0.0 to 9999.9)
4. Unit (N, fixed)
5. Velocity (0.0 to 999.9)
6. Unit (M, fixed)
7. Velocity, km/h
8. Unit (K, fixed)
XTE- Cross-Track Error, Measured
$**XTE,A,A,x.x,a,N,a,*hh<CR><LF>
1 2 3 4 5 6
1. Status: A=data valid V=LORAN C blink or SNR warning
2. Status: V=LORAN C blink or SNR warning
3. Magnitude of cross-track error (0.0000 - 9.9999)
4. Direction to steer, L/R
5. Units, nautical miles (fixed)
6. Mode indicator (A=Autonomous mode D=Differential mode S=Simulator mode)
ZDA- Time and Date
$GPZDA,hhmmss.ss,xx,xx,xxxx,xx,xx<CR><LF>
1 2 3
1. UTC (000000 to 235959)
2. Day (01 to 31)
3. Month (01 to 12)
4. Year (UTC, 0000 to 9999)
5. Local zone, hours (-13 to ±13)
6. Local zone, minutes (00 to ±59)
4 5 6
APPENDIX 3 DIGITAL INTERFACE
AP-13