class NMEAPlus::Message::NMEA::GDF
GDF
- Dead Reckoning Positions
The use of waypoint location $–WPL (for past positions) or $–GLL (for present position) followed by time tag $–ZDA is recommended for reporting past or present waypoint times; $–WPL followed by $–ZTG is recommended for estimated time. @see WPL
@see GLL
@see ZDA
@see ZTG