RMC - Minimum Navigation Information
12
1 2 3 4 5 6 7 8 9 10 11| 13
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$--RMC,hhmmss.ss,A,llll.ll,a,yyyyy.yy,a,x.x,x.x,ddmmyy,x.x,a,a*hh<CR><LF>
Field Numbers:
1) UTC Time
2) Status, V = Navigation receiver warning
3) Latitude
4) N or S
5) Longitude
6) E or W
7) Speed over ground, knots
8) Course over Ground, degrees true
9) Date, ddmmyy
10) Magnetic Variation, degrees
11) E or W
12) Mode Indicator
13) CRC
Used Fields: 1,2,3,4,5,6,7,8,9,10,11,12
1:UTC 2:Valid 3:Lat 4:LaInd 5:Lon 6:LoInd
7:SOG 8:COG 9:Date 10:MagV 11:MagIn 12:Acc
VBW - Ground/Water Speed
1 2 3 4 5 6 7
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$--VBW,x.x,x.x,A,x.x,x.x,A*hh<CR><LF>
Field Numbers:
1) Longitudinal water speed, \-\ means astern
2) Transverse water speed, \-\ means port
3) Status, A = Data Valid
4) Longitudinal ground speed, \-\ means astern
5) Transverse ground speed, \-\ means port
6) Status, A = Data Valid
7) CRC
Used Fields: ,5,6
4:LonGS 5:TraGS 6:Valid
VTG - made good and Ground speed
1 2 3 4 5 6 7 8 9 10
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$--VTG,x.x,T,x.x,M,x.x,N,x.x,K,A*hh<CR><LF>
Field Numbers:
1) Track Degrees
2) T = True
3) Track Degrees
4) M = Magnetic
5) Speed Knots
6) N = Knots
7) Speed Kilometres per Hour
8) K = Kilometres per Hour
9) Status, A = Data Valid
10)CRC
Used Fields: 1,5,6,7,8,9
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