eRTK: A New Generation of Solutions for Centimeter-Accurate Wide-Area Real-Time Positioning white paper, Trimble 2001

Trimble has developed a new RTK technology, termed eRTK, that further enhances GPS surveying. A highly flexible choice of infrastructure and communications media, coupled with eRTK rover technology provides a unique new range of solutions for wide area RTK coverage which can be easily customized to meet exact and specific user requirements.