DigiFarm VBN Network RTK has a repeatable accuracy for vertical applications at 1″.  No longer do you need to set-up a mobile base station in your field for tiling, ditching, or even grade control.  DigiFarm VBN works with the most popular vertical GPS products available from Trimble, Ag Leader, and others.  Save time and money using DigiFarm’s cost effective Virtual RTK correction!