Here are automated vehicle and implement steering systems currently available from major manufacturers. Some brands also are available from marketing partners, which are not listed here. In most cases, higher-accuracy systems also require an annual subscription for a satellite GPS signal.

AGCO

Auto-Guide

Accuracy: Submeter, decimeter, sub-1 in. (RTK)

Components: ISO-compliant virtual terminal, self-contained, mobile roof-mounted receiver and antennae, hydraulic kit or steer-by-wire steering interface, RTK base station (RTK systems only)

Price: $10,000 (submeter), $15,000 (decimeter), $30,000+ (RTK with base station)

Plug and play availability: AGCO brand tractors can be ordered from the factory with wiring needed for automated steering systems. AGCO branded tractors are ISO-11783 compliant, which allows a single terminal to monitor tractor, equipment and guidance functions.

Contact your AGCO dealer, call 888/989-8525, visit www.agcocorp.com, or circle 101.

AUTOFARM

AutoFarm RTK AutoSteer

Accuracy: ±1 in.

Components: Cab-mounted touchscreen monitor, roof-mounted receiver and antennae, hydraulic kit or steer-by-wire steering interface, RTK base station

Compatibility: Works on most makes and models of tractors, sprayers, spreaders, and combines

Price: $23,000 to $25,000; with base station, $29,500 to $31,500

AutoFarm DGPS AutoSteer

Accuracy: ±10 to 12 in., ±2 to 4 in.

Components: ATC cab-mounted touch-screen monitor, roof-mounted DGPS receiver and antennae, hydraulic kit or steer-by-wire steering interface

Compatibility: Works on most makes and models of tractors, sprayers, spreaders and combines

Price: $11,000 to $13,000

AutoFarm RighTrac

Accuracy: ±3 in.

Components: ATC cab-mounted touch-screen monitor, roof-mounted receiver and antennae, wheel steering (OnTrac), hydraulic kit or steer-by-wire steering interface, RTK base station

Compatibility: Works on most makes and models of tractors, sprayers, spreaders and combines

Price: $16,500 with OnTrac wheel steering, including base station; $17,500 with hydraulic kit

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Implement Steering

AutoFarm AFTracker

Accuracy: ±1 in.

Components: GPS antenna, wiring harness to cab receiver, Orthman steering coulters

Price: $13,000 (requires AutoFarm RTK AutoSteer)

Contact AutoFarm at 877/947-7327, www.gpsfarm.com, or circle 102.

CASE IH

AFS AccuGuide

Accuracy: ±8 in. (submeter), ±5 in. (decimeter), sub-1 in. (RTK)

Components: Case IH AFS Pro 600 touch-screen monitor, roof-mounted receiver and antennae, RTK base station

Price: 8 in. (submeter), $12,000; 5 in. (decimeter), $14,700; RTK, $20,000 without base station, RTK with base station, $32,000

Plug and play availability: Case IH Magnum and Steiger tractors and Axial-Flow 7010/8010 combines are guidance-ready from the factory. Later this year the Puma series tractor and Axial-Flow 2500 series combines will be added to the guidance-ready lineup. Wiring is ISO-BUS compliant, which allows a single terminal to monitor vehicle, equipment and guidance functions. Case IH dealers also handle automated steering products manufactured by Trimble.

Contact your local Case IH dealer, call 262/636-6011, visit www.caseih.com, or circle 103.

HEMISPHERE GPS

Outback E-Drive

Accuracy: 12 in. or less, 8 in. or less, ±1 in. (RTK)

Components: Outback S or Outback S2, E-Drive hydraulic kit or steer-by-wire steering interface, Baseline HD single-channel RTK base station (RTK systems only)

Compatibility: Vehicle-specific kits are available for more than 500 tractors, combines and self-propelled sprayers.

Price: 12 in., $5,000; 8 in., $7,000; RTK, $15,000

Contact Outback Guidance at 800/247-3808, www.outbackguidance.com, or circle 104.

JOHN DEERE

GreenStar AutoTrac Assisted Steering System

Accuracy: ±13 in., ±4 in., sub-1 in. (RTK)

Components: Original or GreenStar 2 display, StarFire iTC roof-mounted receiver (and antennae with RTK), RTK base station (RTK systems only), AutoTrac activation

Price: AutoTrac SF1 activation (±13 in.), $10,300; AutoTrac SF2 activation (±4 in.), $14,000; AutoTrac RTK activation, $17,000 (includes base station)

Plug and play availability: For model years 2006 and 2007, all John Deere 8030 and 9020 series tractors are AutoTrac ready.

AutoTrac Universal Steering Kit
(Steering Wheel Driven)

Accuracy: ±13 in. or ±4 in. Sub-1 in. (RTK) also is available, but not recommended.

Components: AutoTrac Universal Steering kit, Original or GreenStar 2 display, StarFire iTC roof-mounted receiver (and antennae with RTK), AutoTrac activation

Price: Steering kit, plus SF1 activation (±13 in.), $13,450; steering kit, plus SF2 activation (±4 in.), $17,150; steering kit, plus RTK activation, $20,150

Contact your local John Deere dealer, call 866/993-3373, visit www.johndeereag.com, or circle 105.

NEW HOLLAND

IntelliSteer Auto Steering System

Accuracy: ±6 to 8 in., ±3 to 5 in., ±2 to 4 in., 1 in. (RTK)

Components: IntelliView Plus II color touch-screen display, roof-mounted NH252 GPS receiver and antennae, RTK base station

Price: 6 to 8 in., $12,900; 3 to 5 in. and 2 to 4 in., $14,900; RTK, $20,400, with base station, $32,000

Plug and play availability: TG and TJ series tractors and CR9000 and CX8000 combines are guidance-ready from the factory. Wiring is ISO-BUS compliant, which allows a single terminal to monitor vehicle, equipment and guidance functions. New Holland dealers also handle automated steering products manufactured by Trimble.

Contact New Holland North America at 888/290-7377, www.newholland.com, or circle 106.

RAVEN INDUSTRIES

QuickTrax wheel steering system

Accuracy: Submeter or decimeter

Components: QuickTrax, SmartTrax controller, RGL 600ic lightbar, DGPS receiver (submeter system); QuickTrax, SmartTrax controller, Phoenix 300 GPS receiver, Raven DGPS enhancer and RGL 600ic lightbar (decimeter system)

Compatibility: Kits are available for many models of tractors and sprayers.

Price: Submeter, $7,400; decimeter, $15,780

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SmartTrax and SmartTrax DM Steering Assist

Accuracy: Submeter or decimeter

Components: Hydraulic kit, SmartTrax controller, RGL 600ic lightbar, DGPS receiver (submeter system); hydraulic kit, SmartTrax controller, Phoenix 300 GPS receiver, Raven DGPS enhancer and RGL 600ic lightbar (decimeter system)

Compatibility: Kits are available for many models of tractors and sprayers.

Price: Submeter, $7,900; decimeter, $16,280

Contact Raven Industries at 800/243-5435, www.ravenprecision.com, or circle 107.

TEEJET TECHNOLOGIES

FieldPilot

Accuracy: ±8 to 12 in. or ±4 to 6 in.

Components: Hydraulic kit, Legacy 6000 controller, WAAS GPS receiver (submeter system); hydraulic kit, Legacy 6000 controller, OmniStar HP compatible GPS receiver (decimeter system)

Compatibility: Kits are available for more than 50 tractors and sprayers.

Price: ±8 to 12 in., $10,500; ±4 to 6 in., $14,500

FieldPilot 220

Accuracy: Submeter

Components: Hydraulic kit, controller, Centerline 220 lightbar

Compatibility: Kits are available for sprayer and tractor platforms.

Price: $5,500

Contact Spraying Systems Co. at 217/753-8424, www.teejet.com, or circle 108.

TOPCON POSITIONING SYSTEMS

Topcon ProSteer

Accuracy: Submeter, decimeter, sub-1 in. (RTK)

Components: Hydraulic kit, X20 monitor, and electronic control unit. The submeter system also has a WAAS receiver. The decimeter system also has a Map HP GPS receiver. The RTK system also has a Map HP GPS receiver and Map HP GPS base station.

Compatibility: Kits are available for a range of tractors, sprayers and combines.

Price: Submeter, $13,000 to $16,000; decimeter, $16,000 to $19,000; RTK, $30,000+

Contact Topcon Positioning Systems at 925/245-8300, www.topconpositioning.com, or circle 109.

TRIMBLE

AgGPS EZ-Steer

Accuracy: ±6 to 8 in., ±3 to 5 in., sub-1 in. (RTK)

Components: EZ-Steer kit with Easy Guide Plus lightbar, Easy Guide 500 and antenna, or Easy Guide 500, SN900 radio, and base station (RTK)

Compatibility: Compatible with more than 550 tractors, sprayers and combines

Price: ±6 to 8 in., $5,490; ±3 to 5 in., $9,490; RTK, $28,485, less $12,000 if an RTK network is available

AgGPs AutoPilot

Accuracy: ±6 to 8 in., ±3 to 5 in., sub-1 in. (RTK)

Components: AutoPilot steering system, choice of displays; AutoPilot and choice of Easy Guide 500 or FieldManager display; AutoPilot and choice of Easy Guide 500 or FieldManager display, SN900 radio, base station (RTK)

Compatibility: AutoPilot is compatible with most late-model tractors. Also installs on guidance-ready vehicles.

Price: ±6 to 8 in., $7,500 to $10,000; ±3 to 5 in., $13,000 to $16,000; RTK, $20,000 to $24,000, plus an additional $12,000 for an RTK base station if no Trimble RTK network is available

Implement Steering

TrueTracker Implement Steering

Accuracy: ±1 in.

Components: AgGPS 252 receiver, navigation controller, Orthman steering coulters

Price: $16,995 (two-coulter system) or $18,995 (four-coulter system). Requires AgGPS AutoPilot system.

Contact Trimble at 800/865-7438, visit www.ez-guide.com, or circle 110.