Furuno SC-110 AP-7, VHW - Water speed and heading, VLW - Distance travelled through the water

APPENDIX

VHW - Water speed and heading

The compass heading to which the vessel points and the speed of the vessel relative to the water.

$GPVHW,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 (0.0 - 359.9, NULL)

2.T=True (fixed)

3.Heading, degrees (0.0 - 359.9, NULL)

4.M=Magnetic (fixed)

5.Speed, knots (0.0 - 9999.9)

6.N=Knots (fixed)

7.Speed, knots (0.0 - 9999.9)

8.K=km/hr (fixed)

VLW - Distance travelled through the water

The distance travelled, relative to the water.

$**VLW,x.x,N,x.x,N,x.x,N,x.x,N,*hh<CR><LF> 1 2 3 4 5 6 7 8

1.Total cumulative water distance (0.0 - 999999.999)

2.N=Nautical miles

3.Water distance since reset (0.000 - 999999.999)

4.N=Nautical miles

5.Total cumulative ground distance (no use)

6.N=Nautical miles (no use)

7.Ground distance since reset (no use)

8.N=Nautical miles (no use)

VTG - Course over ground and ground speed

COG and SOG obtained by processing the GPS signals.

$GPVTG,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)

Note: Position system indicator with IEC ED2 only.

ZDA - Time and date

$GPZDA,hhmmss.ss,xx,xx,xxxx,xx,xx<CR><LF>

12 3 4 5 6

1.UTC (000000 - 235959)...See NOTE2

2.Day (01 - 31)

3.Month (01 -12)

4.Year (UTC, 0000 - 9999)

5.Local zone, hours (-13 to ±13)...See NOTE1

6.Loca zone, minutes (00 to ±59)

NOTE1 - Zone description if the number of whole hours added to local time to obtain GMT. Zone description is negative for east longitudes.

NOTE2 – Decimal point and decimal fraction are not output.

AP-7