Cours sur les méthodes d'évaluation acoustique ... - Fao - Copemed

The NMEA 0183 Protocol 11HDGHeading – Deviation & Variation1 2 3 4 5 6| | | | | |$--HDG,x.x,x.x,a,x.x,a*hh1) Magnetic Sensor heading in degrees2) Magnetic Deviation, degrees3) Magnetic Deviation direction, E = Easterly, W = Westerly4) Magnetic Variation degrees5) Magnetic Variation direction, E = Easterly, W = Westerly6) ChecksumHDMHeading – Magnetic1 2 3| | |$--HDM,x.x,M*hh1) Heading Degrees, magnetic2) M = magnetic3) ChecksumHDTHeading – True1 2 3| | |$--HDT,x.x,T*hh1) Heading Degrees, true2) T = True3) ChecksumHSCHeading Steering Command1 2 3 4 5| | | | |$--HSC,x.x,T,x.x,M,*hh1) Heading Degrees, True2) T = True3) Heading Degrees, Magnetic4) M = Magnetic5) Checksum