GPS (or better GNSS) positioning with Real-Time Kinematics (RTK) is certainly not new, but it still blows my mind how well it works. In the video cm-movements are being tracked by a u-blox ZED-F9P-04B receiver that I bought for €172: https://t.co/ztn1Ul4wbG pic.twitter.com/hmmAFow0p2

— Jan Zwiener (@jnz_jan) May 12, 2024