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Measuring Waveforms
3–134
TDS 500C, TDS 600B, & TDS 700C User Manual
H Vertical displays a vertical histogram that shows how your vertical units
vary in the histogram box. A vertical histogram is displayed starting at the
left edge of the graticule. The size of the max bin is controlled by the
Histogram Size side menu.
H Horizontal displays a horizontal histogram that shows how time varies in
the histogram box. A horizontal histogram is displayed at the top of the
graticule. The size of the max bin is controlled by the Histogram Size side
menu.
To reset the count in all histogram bins to zero, press MEASURE ➞ Histogram
(pop-up) ➞ Histogram Options (main) ➞ Reset Histogram Counting (side).
To display a histogram, press MEASURE ➞ Histogram (pop-up) ➞ Histo-
gram Options (main) ➞ Histogram Display (side) ➞ Off, Log, or Linear
(side).
H If you select Off, you turn off histogram displays. Histogram counting and
measurements can continue. The histogram box is not turned off.
H If you select Log, you display the log of the count in each bin. Log scaling
provides better visual detail for bins with low count.
H If you select Linear, you display the count in each bin.
To select which waveform is compared against the histogram box, press
MEASURE ➞ Histogram (pop-up) ➞ Histogram Options (main) ➞
Histogram Source (side) ➞ Ch1, Ch2, Ch3, or Ch4 (side).
To set the size of the histogram display press MEASURE ➞ Histogram
(pop-up) ➞ Histogram Options (main) ➞ Histogram Size (side). Use the
general purpose knob or keypad to set the histogram size.
The histogram box selects the section of the trace used for histograms. To set the
size of the histogram box, press MEASURE ➞ Histogram (pop-up) ➞
Histogram Box Limits (main) ➞ Top Limit, Bottom Limit, Left Limit, or
Right Limit (side). Use the general purpose knob or keypad to adjust the
selected edge of the histogram box.
Reset Histogram Counting
Display a Histogram
Setting Histogram Box
Size