The R&S®SGS100A is an RF source designed to meet the requirements of automated test systems. It is available as a CW source or as a vector signal generator with an integrated I/Q modulator. With its frequency range of up to 12.75 GHz, the vector signal generator version covers the essential digital signals. The CW version can be used as a flexible local oscillator as well as for interference testing against mobile radio standards. The R&S®SGU100A upconverter extends the frequency range to 20 GHz.