Operation and Features 2Keysight U8903A User’s Guide 39– DC signal– Dual sine waveforms which include SMPTE intermodulation distortion (SMPTEIMD) and difference frequency distortion (DFD) waveform types– Multitone generation– User-defined arbitrary waveformThe U8903A audio analyzer has a frequency measurement range of 10 Hz to 100 kHz,as well as an amplitude measurement range of microvolts to 200 Vp (140 Vrms).Below is the list of the audio analyzer features.– Balanced input signals (XLR)– Unbalanced input signals (BNC)– Frequency measurement– AC voltage measurement– DC voltage measurement– Phase measurement– THD + N Ratio measurement– THD + N Level measurement– SINAD measurement– Signal-to-noise ratio (SNR) measurement– Noise Level measurement– SMPTE IMD measurement– DFD measurement– Crosstalk measurement– RMS, Peak-to-Peak, Quasi Peak type detectors– AC/DC coupling– Digital filters such as low pass, high pass, and weighting filters– Input autoranging– Selectable measurement bandwidth– Selectable measurement time– Free Run or External trigger mode