f.u.n.k.e. AVIONICS developed and supplied the Signal Generator (SGF) for the EGNOS and the Korean SBAS Uplink Stations as a contribution to improve the performance and integrity of Galileo and GPS users. The main function of the SG is to generate the L1 and L5 RF signals which are used for uplink of SBAS correction data to the GEO stationary satellite. The code and carrier phases of these signals have to be steered for time synchronization and compensation of signal propagation effects.