VRS GNSS server (1)     UAV Autopilot GNSS Receiver (5)     VRS Receiver (1)     OEM GNSS Receivers (1)     GNSS Boards (2)     GNSS Modules (2)     survey smart antenna (4)     RTK (4)     GPS (4)     uav (1)     survey uav (1)     ground control points (1)