The R&S FSU spectrum analyzers are performance leaders in dynamic range, phase noise, level accuracy, and resolution bandwidth - all factors that are essential for the user's ability to design, characterize, and manufacture next generation wireless elements. Excellent performance Frequency range 20 Hz to 26,5 GHz Displayed average noise level -158 dBm (1 Hz) Phase noise -123 dBc (1 Hz) at 10 kHz TOI typ. +25 dBm Resolution bandwidth 1 Hz to 50 MHz High measurement speed Fast ACP in time domain Up to 70 measurements per second (including trace transfer via GPIB)