81 Ag Leader PN 4002083 Rev. N
S
ETUP
S
ETTINGS
The Speed Input Settings screen is where you can
calibrate the ground speed input for accurate speed
and area calculations.
In most cases GPS is the primary speed source with Radar serving as backup. If you will be using GPS
as the primary you will need to select a Backup source.
Choices for Primary Source include:
• GPS
• Wheels
• Radar
• Manual
• Other Possible Options:
- Hardi ISO (on Hardi equipment)
- Claas (on Claas Cebis)
Choices for Backup Source include:
• Wheels
• Radar
• Filtered - This setting is used only as a backup speed source for low pulse ground speed sensors. In times
when primary speed source is lost, this setting allows you to calibrate and operate with a speed sensor
that has a pulse output below the standard threshold of 305 pulses/100ft (imperial) or 10 pulses/meter
(metric). Using the “filtered” selection will allow calibration values down to 15 pulses/100ft (imperial) or
0.5 pulses/meter (metric). When the calibration values fall in this lower range, the speed sensor input will
be filtered to achieve a more accurate rate control.
Other Notes:
• If you are using a backup radar speed source it is recommended that you calibrate it before the season
begins.
• It is recommended to
Calibrate Distance
in the event of GPS loss. For more information, see
“Calibrate
Distance” on page 81
.
CALIBRATE DISTANCE
If you are not using GPS for ground speed, then after you have created a configuration you must
calibrate the ground speed input for accurate speed and area calculations. If you are using GPS, it is
recommended to calibrate distance in the event of GPS loss. Use the following procedure to calibrate
distance:
Primary Source
Display GPS
Backup Source
Auxiliary Device
Speed Input
Auxiliary Device Channel
Radar
Auxiliary Channel Calibration
2000
Calibrate
Distance
Pulses/ 100 ft
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