u-blox - Drotek Releases Sirius RTK F9P GNSS Rover. The RTK version of the Sirius GNSS comes with ZED-F9P u-Blox module,providing 1cm position accuracy, a convergence time under 10 seconds and a
ZED-F9P module | u-blox
ZED-F9P RTK InCase PIN GNSS receiver board with SMA Base or Rover