Advantest The R3768/3770 Network Analyzer is a high-performance multi-port analyzer designed with a greater emphasis on measuring passive components. Higher frequencies are also supported, with the R3768 supporting frequencies from 300 kHz to 8 GHz Instrument Type Vector Low end frequency limit 300 kHz High End Frequency Limit 8 GHz Output Power Range 300 kHz to 700 MHz: 123 dB Input Noise Level 300 kHz to 10 MHz: 0.0025 dBrms (1 kHz RBW typical)