1 responses to “EEVblog #223 – Agilent Oscilloscope High Res Mode”

• Sam Reaves May 18th, 2012 at 11:44

  Hi Dave,

  And you are correct, you have to be aware of what the high-res function does. LeCroy has had this feature on their DSO’s since the 1990′s ( maybe even the late 80′s), they called it E-RES for Enhanced-Resolution and it was a pay for firmware option.

  They had three distinct advantages over their competitors on this feature:

  1. They had it first, like many other firsts in DSO’s.
  2. Their E-RES mode could be set for 0.5,1,2 or 3 bits of E-RES.
  3. They show you right on the screen what the Nyquist bandwidth penalty is for a given E-RES bit enhancement value, a timebase setting and a sample memory depth setting (which unlike most DSO’s)that is adjustable to fit the type of measurement you are making.

  Sam
  W3OHM
  Moderator, Independent LeCroy_Owners_Group

  P.S. did you ever get that 9300 series scope working?

  Best regards and keep up the teardowns.

  Reply