10
Function and Operation
Speedlog Data Input--VHW
$--VHW, x.x,T , x.x,M , x.x,N , x.x,K*hh<CR><LF>
1 2
3
4
(1) Heading, degrees True
(2) Heading, degrees Magnetic
(3) Speed, knots
(4) Speed, km/hr
Gyro Data Input--HDT
$--HDT, x.x , T * hh<CR><LF>
1
2
3
(1) Heading, degree true
(2) T = true
(3) Checksum value