Advantest R3671 Overview The Advantest model R3671 is a signal analyzer. Specifications Amplitude Accuracy: +/- 0.2 dB - +/- 0.3 dB Amplitude Range: +20 dBm - +30 dBm Dynamic Range: -158 dBm - -96 dBm Frequency Range: 20 Hz - 13 GHz Frequency Resolution: 0.01 Hz Frequency Spans: 20 Hz - 13 GHz Input Impedance: 50 ohms