Phil Mercer - in Chipping Norton January 6, 2026 at 12:09 AM The satellite tracking collars are being used on cattle at Lyneham Heath Farm, near Chipping Norton [BBC] New technology is being used by farmers in Oxfordshire for the first time to control livestock without putting up fences. Sam Sandberg uses satellite tracking collars on her cattle, at Lyneham Heath Farm near Chipping Norton, and said they increased the amount of land that could be grazed.