John Deere AutoTrac Universal

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Use many tracking options for any field

AutoTrac™ steering system allows operators to use tramline management more effectively, minimizing soil compaction. Additionally, AutoTrac allows the machine operator to select from a variety of guidance modes including straight track, AB curves, adaptive curves, circle track, and swap track. These tracking options allow the operator to select the track best suited for the field and conditions reducing the number of passes needed to cover the field.

Operates with hundreds of equipment platforms using all levels of StarFire™ Receiver accuracy


The AutoTrac™ Universal (ATU) 200 steering kit is a mobile guidance solution that brings additional productivity to farming operations throughout the growing season.

ATU 200 is approved on over 450 different equipment platforms and is compatible with all levels of StarFire accuracy.

 The benefits of the ATU 200 over the original ATU include:

  • Improved on-track line performance
  • Faster line acquisition
  • Serviceability

Reduce operator fatigue and time spent in each field

AutoTrac™ assisted steering system greatly increases operator productivity by maintaining consistent accuracy and efficiency. Operators remain more alert while they are in the field and are able to focus on implement settings and varying field conditions. AutoTrac also allows operators to confidently create evenly spaced rows past sunset, as well as in rain, dust, or fog.

AutoTrac allows the operator to maintain the optimal working speed for a specific application. This helps maintain peak machine and implement performance, resulting in a uniform field. Consistent speed also allows for more acres to be covered in a day for those applications that require higher speeds, like spraying.

AutoTrac also improves operator comfort as the operator has time to concentrate on implement tasks.

Reduce soil compaction and passes

As tractors and field equipment become larger and heavier, there is a growing concern about soil compaction. Heavy equipment and tillage implements can cause damage to the soil structure. Soil structure is important because it determines the ability of a soil to hold and conduct water, nutrients, and air necessary for plant root activity.

By using AutoTrac™ steering system, operators can optimize the number of passes and reduce compaction. Additionally, the operator can confine traffic between certain rows and avoid compacting the row area.

AutoTrac allows producers to use the same traffic lanes year after year, sacrificing a small portion of the field in favor of having no wheel traffic in the majority of the field. Restricting traffic to specific lanes also provides a firm soil surface for more efficient tractor operation.

Without using AutoTrac during field operations, there is tendency for passes to overlap. Each pass over a field under poor conditions can cause significant damage to the soil.

Customize accuracy and repeatability to meet the needs of an operation

The StarFire™ 6000 Receiver offers multiple differential correction signal levels to match receiver performance with the needs of the operation.

StarFire 6000 horizontal pass-to-pass accuracy:
  • SF1: +/- 15 cm (5.9 in.)
  • SF3: +/- 3 cm (1.2 in.)
  • Radio RTK: +/- 2.5 cm (1.0 in.)
  • Mobile RTK: +/- 2.5 cm (1.0 in.)
 StarFire 6000 pass-to-pass accuracy

NOTE: Horizontal pass-to-pass accuracy specifications are 1D and are based upon a 15-minute time period, 95 percent confidence interval, clear view of the sky, no signal interference, no scintillation, and ideal atmospheric conditions (free from solar disturbances and other ionospheric/tropospheric activity). Performance may vary based on GNSS constellation health.

NOTE: Radio RTK horizontal accuracy specification is based on the maximum supported baseline (distance from the RTK base station) of 20 km (12 miles) and a properly installed RTK base station.

NOTE: Mobile RTK horizontal accuracy specification is based on a 20-km (12-mile) baseline (distance from the nearest network RTK base station). Performance will vary based on network geometry.

What does pass-to-pass accuracy really mean for the user?

Pass-to-pass accuracy defines how accurate the receiver is at calculating its position over a relatively short (15-minute) time window. For each point in time during that 15-minute window, a pass-to-pass error value is calculated based on the difference between the desired track spacing at the receiver and the actual track spacing based on the receiver’s calculated position. The error values for the entire 15-minute period are combined and the pass-to-pass accuracy value is defined as the 95 percent confidence interval of the data set, meaning 95 percent of the error values are less than or equal to the specification.

Pass-to-pass accuracy is measured at the receiver and does not take into account additional error sources such as AutoTrac™ control system error, ground conditions, or implement drift.

 Pass-to-pass accuracy

Pass-to-pass accuracy has a direct impact on guess-row spacing during jobs like planting, strip till, or fertilizer application, which can have a direct impact on yield potential. Guess-row spacing is also critical for operational efficiency and reducing crop damage in operations that mix implements of various widths.

What does repeatability really mean for the operator?

Repeatability defines how accurately the receiver can calculate its position over a relatively long time window. Repeatability is measured at the receiver and does not take into account additional error sources such as AutoTrac control system error, ground conditions, or implement drift.

In-season repeatability is critical when using AutoTrac for multiple jobs throughout the growing season. One example would be creating AutoTrac guidance lines during planting, then using those same guidance lines to complete subsequent jobs such as side-dressing fertilizer, post-emerge spraying, and harvesting.

Long-term repeatability is critical when mapping interior and exterior boundaries for later use as input to John Deere Section Control on planters, sprayers, and fertilizer applicators. Long-term repeatability is also critical for growers that use the same AutoTrac guidance lines over multiple seasons for operations like subsurface-drip irrigation, controlled traffic, or alternating planter spacing between the rows from a previous season.

 Guess-row spacing

Pass-to-pass accuracy also has a direct impact on the amount of skip or overlap that occurs during operations like spraying, fertilizer spreading, or conventional tillage, which has a direct impact on yield potential and input costs.

StarFire 6000 repeatability:
  • SF1: no repeatability, position drifts over time
  • SF3: +/- 3 cm (1.2 in.) in-season repeatability (where applicable)
  • Radio RTK: +/- 2.5 cm (1.0 in.) long-term repeatability
  • Mobile RTK: +/- 2.5 cm (1.0 in.) long-term repeatability (where applicable)

NOTE: Repeatability specifications are based on a 95 percent confidence interval, clear view of the sky, no signal interference, no scintillation, and ideal atmospheric conditions (free from solar disturbances and other ionospheric/tropospheric activity). Performance may vary based on GNSS constellation health.

NOTE: Radio RTK repeatability specifications are based on a properly installed RTK base station and a base station position that has not been modified after initial setup.

NOTE: Mobile RTK repeatability may be impacted by updates to network reference frames or adjustments for tectonic plate movement. Networks in some areas of California, Oregon, and Washington will be updated more frequently due to tectonic plate movement.

NOTE: SF3 repeatability specifications have been validated through at least a 9-month period. A guidance-line shift may or may not be required after a period longer than 9 months. SF3 repeatability claims are only valid after the receiver has completed a full pull in and is operating at 100 percent accuracy. SF3 repeatability may be impacted by large unpredictable geological events such as earthquakes.

NOTE: SF3 repeatability performance may vary in the locations marked No in the table below due to the unpredictable nature of local tectonic plate movement or lack of historical data to verify SF3 tectonic plate models. The StarFire 6000/SF3 system will still apply repeatability modeling and attempt to correct for tectonic plate drift in these areas unless the receiver is located very close to a tectonic plate border, but performance may vary by location:

Move AutoTrac™ Universal 200 steering kit between machines depending on the season

With the mobile AutoTrac Universal (ATU) 200 steering kit, producers can leverage their investment in AutoTrac across many approved machine platforms throughout the growing season.

This means producers can move their ATU 200 steering system from their planting tractor in the spring, to their sprayer in the summer, then into their combine, and finally to their tillage tractor in the fall.

Best of all, the ATU 200 moves from machine to machine in about an hour depending upon the platform. By moving this system, operators can experience the value of automatic guidance year-round.

GreenStar™ 3 2630 Display: Increase profitability and reduce overlap

Farming requires multiple passes. This requires a method of guidance with a high degree of repeatability in order to minimize overlap (extra cost of seed, fertilizer, chemical and machine hours) and skips (loss of production).

Maintaining repeatable accuracy is important in all operations, especially with cropping practices that require multiple passes through the field. AutoTrac creates more consistent row spacing, reducing the potential for crop damage with subsequent passes through the field.


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