HP 8712C User Manual page 128

Using Instrument Functions
Using Markers
Using the Next Peak and Next Min Functions.
As explained previously, pressing ?%z -> Max and NW --3 Mn will
place a marker on the maximum and minimum points on the measurement
trace, respectively. You can search for the next highest or lowest point
using the Wxt Peak Right , Next Pssak Laft , %ext Mfa Right and
A maximum (or minimum) point is detected whenever an amplitude
excursion greater than half of a division occurs. The half of a division
excursion requirement must be satisfied on both sides (left and right) of the
peak (or minimum). The maximum (or minimum) point must be >-60 dE3.
See Figure 4-4.
I
All Meet
Peak Search
Criteria
Figure 4-4. Peak and Minimum Search Criteria
When the maximum or minimum point is at or near either edge of the
display, the excursion requirement is satisfied by a half of a division excursion
on just one side of the maximum (or minimum). See Figure 4-5.
4-10
I I
X Does Not Meet
Peak Search
Criteria