HP 53131A Operating Manual page 83

Chapter 2 Operating Your Universal Counter
Using the Measurement Control Keys (Run and Stop/Single)
7 Press Stop/Single key.
One set of N frequency measurements is taken with each press of the
Stop/Single key. One set of statistics is computed with each press of the
Stop/Single key.
8 Press Stats key until SHOW menu item appears.
9 Press any one of the arrow keys to select a statistical result to display, and
press Enter key.
The Counter is now displaying one of the statistical results.
10 Press Stop/Single key.
One set of N frequency measurements is taken with each press of the
Stop/Single key. At the completion of the Nth measurement, the Counter
displays the statistical result selected in step 9.
11 Press Stats key until ON SINGLE menu item appears, then press any one
of the arrow keys to set ON SINGLE menu item to 1.
The Counter is set to take one measurement on each Stop/Single
keypress.
Disabling the statistics (with the STATS: OFF menu item) is another way
to cause the Stop/Single key to initiate one measurement at time.
Operating Guide 2-7