Ag Leader GPS 2100 Operators Manual - Manual (Page 38)

Operation GPS 2000/2100
Ag Leader Technology
April 1998 3-20
NMEA MSG Select this key, found under the setup key, to change the type and number
of GPS messages that the unit sends. This screen also allows the user to
select the rate of NMEA message output.
Note: The VTG message must be turned ON if you want to use the GPS
2000/2100 for ground speed. This capability is available only if you have
the Version 5.25 or higher chip for the Yield Monitor 2000.
The following is a description of the NMEA messages that the GPS
2000/2100 can output:
NMEA Message Description
GGA Provides the time, position, and fix related data.
VTG Provides ground speed.
ZDA Provides UTC day, month, year, and local time zone
offset.
GSA Identifies the GPS position fix mode, SVs used for
navigation, and ?DOP values.
RMC Provides position and time information.
Follow these steps to turn on different NMEA messages:
Step Action
1 Set the unit in standard mode.
2 Press the SETUP key until NMEA MSG is located above F1. Press
F1.
3 A total of five possible messages can be turned on at one time. To
turn on a message press the F key that corresponds to its name on
the screen. The screen will indicate whether a message is turned on
or off. To turn on the RMC message, press the right arrow key.
Note: When used with the Yield Monitor 2000, only the GGA and
VTG strings should be turned on. If the user is not using the GPS
2000/2100 for speed then only the GGA string should be turned on,
which is the default setting.