basic parameter:
low -pass filtering:600Hz to 15kSegmented variable (The attenuation of 5% inflection point,rate of decay 12dB/otc )
high-pass filtering：0.1Hz、10Hz、400Hz、1KHz(The attenuation of 5% inflection point,rate of decay 24dB/otc )
envelope demodulation:on/off 
Anti-aliasing filter:100Hz~20KHz continuous
dynamic range:14 bit A/D,84dB
window function:Hanning Window、Hai Ming window、 triangular window、 rectangular window etc option
channel:2/4/8/16+speed channel
sampling:2/4/8/16channel,and sample hold       
coupling scheme:AC、DC
Frequency analysis:Lower Limit Frequency:0.1Hz
Upper Limit Frequency：100Hz、200Hz、500Hz、1KHz……100KHz
Sampling sites:256、512、1024、2048、4096、8192、16384、32768
number of spectral line:100、200、400、800、1600、3200、6400、12800
Trigger source: internal trigger、External trigger
Trigger mode:free trigger(no trigger)、single trigger、repeated trigger
Range:30V(DC),3.3~0.01259 grade（AC）