Furuno FELCOM 12 manual AP-24, VDR Set and drift

RMC - Recommended minimum navigation information - GPS/TRANSIT data

$--RMC,hhmmss.ss,A,llll.lll,a,yyyyy.yyy,a,x.x,x.x,xxxxxx,x.x,a,a*hh<CR><LF>

									+---	10
									+-----	9
									+--+-------	8
								+	--------------- 7
							+	---------------------	6
						+	-------------------------		5
				+---	+----------------------------				4
		+---	+	----------------------------------------					3
	+	---------------------------------------------------							2
+	----------------------------------------------------------								1

1.UTC of position fix

2.Status: A=data valid, V=navigation receiver warning

3.Latitude, N/S

4.Longitude, E/W

5.Speed over ground, knots

6.Course over ground, degrees true

7.Date: dd/mm/yy

8.magnetic variation, degrees E/W

9.Mode indicator(see note)

10.Checksum

NOTE Positioning system Mode indicator:

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.

VDR - Set and drift

$--VDR,x.x,T,x.x,M,x.x,N*hh<CR><LF>

						+	--------- 4
				+--	+	-----------	3
		+--	+-----------------				2
+--	+	-----------------------					1

1.Direction, degrees true

2.Direction, degrees magnetic

3.Current speed, knots

4.Checksum

AP-24