The model .06 from Rohde & Schwarz is a Spectrum Analyzer with AC Voltage 100 to 240 V, Attenuation 0 to 10 dB, Frequency 5 KHz to 6 GHz / 5 KHz to 8 GHz(with R&S®FPH-B8 option installed), Phase Noise -120 to -88 dBc/Hz. More details for model .06 can be seen below.