GPS for Stone Picking: Phone vs. Receiver vs. RTK.
Key takeaways A phone or tablet works fine with a TerraClear Rock Map. Under open sky, it gets you within about 2 to 6 m (6 to 20 ft) of each stone. A dedicated GPS receiver gets you closer, to about 30 cm (1 ft), and updates your position up to 10 times a second. […]