Trimble, along with Kunau Implement of DeWitt, Iowa, celebrated the 120 millionth acre (48 millionth hectare) of Trimble AgGPS® RTK network coverage in North America at the Kunau GPS field day August 2. Left to right: Kunau customers Mart Connell and Chris Bowman, Trimble Prairie Regional Manager Matt Hesse, Kunau GPS Specialist Rodney Bratthauer and Todd Kunau, sales manager of the Case-IH dealership. Kunau Implement owns and operates the SIGNAL RTK network in eastern Iowa.
An RTK network is a series of RTK (Real Time Kinematic) base stations and repeaters that broadcast continuous GPS correction signals for automated steering with +/- 1-inch repeatable accuracy. In North America, more than 40 such networks are equipped with Trimble AgGPS RTK systems. An individual 100 foot (31 meter) tower such as the one above covers an average of 100,000-120,000 acres (40,000-48,000 hectares). Most RTK networks are owned and operated by independent agricultural retailers.