The Case IH ZTN9655104 is a genuine activation code designed to upgrade compatible Case IH AFS (Advanced Farming Systems) guidance components from EGNOS (European Geostationary Navigation Overlay Service) to RTK (Real-Time Kinematic) correction signals. This software unlock significantly enhances the GPS accuracy, providing sub-inch precision essential for high-demand precision agriculture operations. It is crucial for tasks requiring repeatable pass-to-pass accuracy, such as planting, spraying, and strip-tillage. This activation code is typically applied to AFS 372 receivers and AFS Pro 700 displays, enabling them to utilize RTK correction data for superior field performance.