Tektronix DPO4000 Series - Page 161

Analyze Waveform Data
3. Set th e levels from the side-bezel menu.
Reference
Levels
Set Levels
in
% units
Use High and Low reference to calculate rise and
fall times.
High Ref
a90.0%
Use Mid refere nce primarily for measurements
between edges such as pulse widths.
Mid Ref
a50.0%
b50.0%
Low Ref
a10.0%
-more-
1of2
DPO4000 Series User Manual 143