Haicom HI-305N User Manual - page 22

21

VTG - COURSE OVER GROUND AND GROUND SPEED

Velocity is given as course over ground (COG) and speed over 

ground (SOG).

Format:

GPVTG,,T,,M,,N,,K,*

Example: 

$GPVTG,221.0,T,224.3,M,016.0,N,0029.6,K,A*1F

Field

1

2

3

4

5

6

Example

221.0

224.3

016.0

0029.6

A

1F

Description

True course over ground, 

000.0 ~ 359.9 degrees

Magnetic course over ground, 

000.0 ~ 359.9 degrees

Speed over ground, 

000.0 ~ 999.9 knots

Speed over ground, 

0000.0 ~ 1800.0 kilometers per hour

Mode indicator

'N' = Data invalid

'A' = Autonomous

'D' = Differential

'E' = Estimated

Checksum