New Lap Marker
Channel Number | 5 |
Total Length | 21 bytes |
Channel | Data1 | Data2 | Data3 | Data4 | Data5 | Data6 | Data7 | Data8 | Data9 | Data10 | Data11 | Data12 | Data13 | <Data14...19> | Checksum |
Marker number = Data1
Long = (Data2 And &H7F x 2^24 + Data3 x 2^16 + Data4 x 2^8 + Data5)
If (Data2 And &H80) Then Long = Long -(2^31)
Marker Long (degrees) = Long x 0.0000001
Lat = (Data6 And &H7F x 2^24 + Data7 x 2^16 + Data8 x 2^8 + Data9)
If (Data6 And &H80) Then Lat = Lat -(2^31)
Marker Lat (degrees) = Lat x 0.0000001
Heading = (Data10 And &H7F x 2^24 + Data11 x 2^16 + Data12 x 2^8 + Data13)
If (Data10 And &H80) Then Heading = Heading -(2^31)
Marker Heading (degrees) = Heading x 0.00001
Data14...19 Not Used
This message generally sends out by data loggers when a track marker is added. Also, this is used by SPEEDBOX to send start and end triggered test markers with Marker number set to 128 and 129 respectively.