UTD2000 Series User Manual 
23 
 
2.9 Digital Filter 
Filter the frequency of specified waveband in signals by adjusting upper/lower frequency 
limit. 
Table 2-6 Digital Fiter Menu 
Set CH1 as operation waveform 
Set CH2 as operation waveform 
Only  when  the  signal  frequency  is 
lower than current upper frequency 
limit can the signal pass through. 
Only  when  the  signal  frequency  is 
higer than  current upper frequency 
limit can the signal pass through. 
Only  when  the  signal  frequency  is 
higher than current lower frequency 
limit  and  lower  than  current  upper 
frequency  limit  can  the  sigal  pass 
through. 
Only  when  the  signal  frequency  is 
lower than current lower frequency 
limit  or  higher  than  current  upper 
frequency  limit  can  the  sigal  pass 
through. 
Adjust lower frequency limit through 
multifunctional  knob,  for  low  pass 
filter, lower frequency limit is invalid, 
the menu is hidden. 
Adjust lower frequency limit through 
multifunctional  knob,  for  high  pass 
filter, lower frequency limit is invalid, 
the menu is hidden.