Furuno SC-110 manual AP-7, VLW Distance travelled through the water

APPENDIX

VLW - Distance travelled through the water

The distance travelled, relative to the water.

$--VLW,x.x,N,x.x,N*hh<CR><LF>

				+	--------- 3
		+---	+	-----------	2
+---	+	-----------------			1

1.Total cumulative distance, nautical miles

2.Distance since reset, nautical miles

3.Checksum

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, p*hh<CR><LF> Positioning mode indicator*

Speed, km/h

Speed, knots

Course degrees magnetic

Course degrees true

*A = Autonomous, D = Differential, E = estimated(dead reckoning), M = Manual input, S = Simulator, N = Data not valid. 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.

ZDA - Time and date

UTC, day, month, year and local time zone.

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

Local zone minutes description, same sign as local hours Local zone description 00 h to ± 13 h (see note)

Year Month, 01 to 12

Day, 01 to 31

UTC

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

AP-7