Histogram Window - HP 54710A User's Reference Manual

Histogram Menu

Histogram Window

Histogram Window
The hist window softkey gives you access to a second-level menu that allows
you to select a region of the data base to include in the histogram.
Scale Source
The Scale source softkey selects the channel or function that the window
scale is derived from. For example, if Y1 position is set to 100 mV and Y2
position is set to −100 mV, the distance between the histogram markers
depends on the vertical scaling of the source. If the source is set to
100 mV/div, the markers will be two divisions apart. If the source is set to 1
V/div, the markers will be about a minor division apart.
X and Y Position
The Position softkeys allow you to use the histogram markers to select a
region of the data base. X1 and X2 position move the vertical histogram
markers vertically across the display, while Y1 and Y2 position move the
horizontal histogram markers horizontally across the display. Because the
data base that the histogram is derived from is limited to the size of the
graticule area, placing the histogram markers beyond the graticule area
results in a histogram of only the graticule area.
For jitter measurements, you would position the Y1 and Y2 histogram
markers so that the histogram is built from a very narrow horizontal slice of
the graticule area. For noise measurements, you would position the X1 and
X2 histogram markers so that the histogram is built from a very narrow
vertical slice of the graticule area.
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