RTK Signal Access will be discontinued on November 1, 2025.

Please contact your Integrated Solutions Consultant for more information about transitioning to SF-RTK.

John Deere RTK provides highly accurate, repeatable corrections to John Deere's suite of Precision Ag applications. RTK utilizes a local, ground-based reference station that transmits the high-accuracy corrections to a StarFire receiver on a vehicle via RTK radios.

Accuracy depends on the distance between the base station and the vehicle. At 12 miles from a base station, a vehicle has an approximate accuracy of 1 inch, 68% of the time, but the closer the vehicle is to the base station, the more accurate the signal is. RTK accuracy provides many benefits to the user in addition to highly accurate corrections.

Castongia Tractor currently has 1.8 Million Acres covered under our RTK network. Below is a map of our current coverage area.