Navigation dialog box - NMEA Sentences page
The parameters on the NMEA Sentences page allows you to choose which information datagrams will be read from the navigation system to provide position, speed, and heading information.
Description
For each type of information from the navigation system, you can choose which NMEA datagrams to import.
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Details
Position
Select which NMEA sentence to be used to import position information.
•  NMEA GGA
The NMEA GGA datagram transfers time-, position- and fix-related data from a global positioning system (GPS).
•  NMEA GLL
The NMEA GLL datagram transfers the latitude and longitude of vessel position, the time of the position fix and the current status from a global positioning system (GPS).
•  NMEA RMC
The NMEA RMC datagram transfers the time, date, position, course and speed data from a global navigation satellite system (GNSS) receiver.
Speed
Select which NMEA sentence to be used to import speed information.
•  NMEA RMC
The NMEA RMC datagram transfers the time, date, position, course and speed data from a global navigation satellite system (GNSS) receiver.
•  NMEA VTG
The NMEA VTG datagram contains the actual course and speed relative to the ground.
Heading
Select which NMEA sentence to be used to import heading information.
•  NMEA HDT
The NMEA HDT datagram provides the true vessel heading. The information is normally provided by a course gyro.
•  NMEA RMC
The NMEA RMC datagram transfers the time, date, position, course and speed data from a global navigation satellite system (GNSS) receiver.
•  NMEA VTG
The NMEA VTG datagram contains the actual course and speed relative to the ground.