Appendix B: Algorithms
TDS 620A, 640A & 644A User Manual AĆ19
    ! $#     (  !  "!
$ & !! !$ $  !   '!
" ! !  #"    ! ! !  "(
!  $   " ! # ! #" !  !$ (

   "!   !  "! $ # $ !!!
!  % '  !  "! "  &
%! !  "!  !& !  " !
 #   ## !  !!" &
MidRef
Both min and max
samples are above
MidRef, so use
minima.
MidRef
Both min and max
samples are below
MidRef, so use
maxima.
Figure AĆ4:ăChoosing Minima or Maxima
to Use for Envelope Measurements
Missing orOutĆofĆRangeSamples