It might sound fancy, but this high-end technology guides machinery using the same free-to-access GPS satellites as mobile phones and cheap-and-cheerful lightbars.

FARGO, N.D. -- In what could be an increasingly important technological advance for the region's farmers, a free RTK base station network soon will expand to cover all of northwest Minnesota.

RTK stands for 'real time kinematic [positioning]', and it's a system that works to make GPS data more accurate. So satellite data alone might help locate your robot lawn mower correct to within a ...

The new GPS900 RTK GPS system from Leica-Geosystems is a complete base and rover system conveniently packaged in a single, "ruggedized" case. The system, says Leica, provides a complete, low-cost, ...