bool bGPSValid
Indicate whether the Global Navigation Satellite System (GNSS) has a valid position.
double gHdm
Magnetic heading in degrees (0-359.99).
double gVar
Magnetic variation in degrees.
double gHdt
True heading in degrees (0-359.99).
double gLat
Vessel's current latitude in decimal degrees.
double gCog
Course over ground in degrees (0-359.99).
double gSog
Speed over ground in knots.
double gLon
Vessel's current longitude in decimal degrees.
Position, course, speed, etc.