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RMC - Recommended minimum specific GPS/TRANSIT data$--RMC,hhmmss.ss,A,llll.lll,a,yyyyy.yyy,a,x.x,x.x,xxxxxx,x.x,a,a*hh| | | | | | | | | | | | || | | | | | | | | | | | +--- 10| | | | | | | | | | | +----- 9| | | | | | | | | +--+------- 8| | | | | | | | +--------------- 7| | | | | | | +--------------------- 6| | | | | | +------------------------- 5| | | | +---+---------------------------- 4| | +---+---------------------------------------- 3| +--------------------------------------------------- 2+---------------------------------------------------------- 11. UTC of position fix2. Status: A=data valid, V=navigation receiver warning3. Latitude, N/S4. Longitude, E/W5. Speed over ground, knots6. Course over ground, degrees true7. Date: dd/mm/yy8. magnetic variation, degrees E/W9. Mode indicator(see note)10. ChecksumNOTE Positioning system Mode indicator:A = AutonomousD = DifferentialE = Estimated (dead reckoning)M = Manual inputS = SimulatorN = Data not validThe Mode indicator field supplements the Status field. The Status fieldshall be set to V=invalid for all values of Operating Mode except forA=Autonomous and D=Differential. The positioning system Mode indicatorand Status field shall not be null fields.AP3-4
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