Ag Leader Compass Manual User Manual
Page 56
48
Firmware Version 5.4
If you have RTK GPS reception, you are allowed to
collect an elevation survey. This will allow you to
collect the Lat/Long and elevation values as you
traverse the field. A point will be dropped every 3
meters as you drive regardless of speed, or direction. If
you are collecting during operations like planting or
application using autoswath, it will also log points
outside the boundary of the field (i.e. through a
grassed waterway) to get the most information
throughout the field.
It is critical that the GPS Antenna to ground measurement is correct in your configuration, any error in
this measurement, will add to the error in the data logged.
The following are suggestions to get the best possible elevation survey for a given field. Following
these recommendations will provide the best results for your field.
• Keep swaths in the field to 60ft (19 M) or less, the closer the better
• Driving a dedicated route at the lowest or highest points in a field (i.e. lengthwise of a grassed waterway,
or at the top of a ridge) then traversing the field in regular swaths will provide the best detail of the field
• If surveying with the tile plow antenna, ensure that the plow is in the fully raised position
• Driving too fast with mounted plows, can cause bouncing and affect quality
• Surveying with harvesting equipment can provide streaked maps as the hopper filling and unloading can
affect the height of the vehicle, and therefore antenna
After these points have been collected, they will be
converted into a surface layer in which you can define
the color scheme Red, White, Blue, or Brown-Tan. See
. In the Red, white, blue
scheme, the darker blue hues will represent the lower
elevation, and the darker red values will represent the
higher elevations, white will be a transition color
between. In the Brown-Tan scheme, the Dark brown
will represent the lower elevations, and the Tan the
higher elevations. You can select the number of
legend ranges for your field that will show the areas desired. This theme will be used for each field until
changed.
During collection of an elevation survey, points will be logged to the file every 3 meters. An onscreen
visual will appear in the form of a single black dot every 30 meters.
Boundary
Headlands
0.67
ac
4.5
mph
Pass: 1 R
0.67
ac
4.5
mph
Pass: 1 R