Agilent/HP / Dynamic Signal Analyzer / 35670A/1D1/1D2/1D4/AY2 
FFT Dynamic Signal Analyzer, DC-102.4 kHz 
   Amplitude Accuracy 1 Mohm - +/- 0.025%  
   Amplitude Range 3.99 mVpk - 31.7 Vpk  
   Dynamic Range 90 dB  
   Frequency Range 0 Hz - 25.6 kHz  
   Frequency Resolution 122 uHz - 25.6 kHz  
   Frequency Spans 195.3 mHz - 102.4 kHz  
   Input Impedance +/- 2.92%  
   Number Of Channels 2 CH