hatch

Farming by Satellite: 

Farming by Satellite Seth Crawford, Marketing Manager, Ag Management Solutions Ron Hatch, Director Navigation Systems NavCom Technology, Inc

80/80/80: 

80/80/80

Next 80 Years… : 

Next 80 Years…

In the beginning…: 

In the beginning… GPS introduced on combines - Mid 1990s Yield Documentation

Farming by the foot: 

Farming by the foot Variable Rate Applications Seed Chemicals Enhanced Documentation Management Compliance

High cost of implement overlap: 

High cost of implement overlap Up to 10% or more overlap on every pass Wastes fuel, chemicals, fertilizer, seed Drag on efficiency, productivity Under-utilization of equipment Environmental concerns

GreenStar GPS Guidance: 

GreenStar GPS Guidance

Slide8: 

StarFire™ DGPS System Overview  Uplink to Three Inmarsat

StarFire iTC Receiver: 

Signal versatility (WAAS, SF1, SF2, RTK) Integrated terrain compensation corrects for cab roll on slopes, uneven ground StarFire iTC Receiver

The NavComTM iTC StarFire Receiver: 

The NavComTM iTC StarFire Receiver Is a dual-frequency (L1 & L2) receiver with WAAS and Inmarsat StarFire correction channels The L1 receiver has direct access to the L1 signal The P-code L2 signals cannot now be directly accessed. Since the L1 signal also has the P-code present, the L2 signal can be accessed by cross-correlation with the L1 signal—with significant loss of signal-to-noise.

StarFire™ RTK & RTK ExtendTM: 

StarFire™ RTK & RTK ExtendTM High accuracy and repeatability:  1 in (2 cm) Receivers on machine and base station Base station transmits radio correction signal to eliminate GPS drift Vehicle can travel same path or track Repeatability is the key advantage RTK ExtendTM uses the StarFire correction signal to extend operation to areas where the communication signal from the base station is unavailable January 2004

StarFire Signal Options: 

StarFire Signal Options SF2 most accurate and reliable Required for Row-Crop operations, recommended for Parallel Tracking SF1 Recommended for Field Doc, Yield Mapping and Map-Based Prescriptions WAAS Pass-to-Pass Accuracy  4 in (10 cm)  13 in (33 cm)  16 in (41 cm)

GreenStar™ AutoTrac hands-free steering: 

GreenStar™ AutoTrac hands-free steering Parallel tracking Straight track – in early days Now hands-free guidance on contours, curved tracks Available on a wide range of self-propelled equipment

Benefits of GPS Guidance: 

Benefits of GPS Guidance Minimizes input costs Reduces operator fatigue Improves productivity

GPS Guidance benefits: 

GPS Guidance benefits Allows controlled traffic Reduces compaction, boost yields Greater machine utilization Less experienced operators achieve excellent results Significantly less operator stress and fatigue Night time operation

Guidance Payback: 

Guidance Payback “The pay off on a DGPS guidance system can be as little as a year to a year-and-a-half, so it holds the potential of being a high-return investment." Purdue University Study

Benefit of the new L2C signal: 

Benefit of the new L2C signal The recent launch of the first modernized GPS Satellite allows direct access to the L2 signal This gives a much stronger signal tracking availability for the removal of ionospheric refraction effects upon the GPS signals The direct benefit is to make guidance by GPS significantly more robust. Example: Signal and accuracy is often lost along field boundaries where trees interfere with the signal

Benefit of the new third frequency (L5): 

Benefit of the new third frequency (L5) The launch of modernized GPS satellites in 2007 with the L5 frequency will enable improved RTK performance. Three frequencies allow: Faster initialization of the RTK whole-cycle ambiguities Significantly longer operating distances from the reference receiver and therefore fewer reference receivers required to cover the same area Unique Deere/NavCom method of using the three frequencies for RTK ambiguity resolution—Patent No. 6,934,632

John Deere Ag Management Solutions: 

John Deere Ag Management Solutions Barry Nelson – Manager, Public Relations (913) 310-8324 Questions?