Tektronix CSA8000B User Manual download pdf (Page 160)

Measuring Waveforms

3-86

CSA8000B & TDS8000B User Manual

Cursors can measure channel, reference, and math waveforms, as well as

waveform databases. You may set the source of each cursor explicitly in the

Cursor Setup dialog box.

The key points that follow describe operating considerations for setting up cursors

to obtain best measurement results.

Cursor Types. The three cursor types are described in Table 3--6 on page 3--85.

There are two cursors displayed for all types, Cursor 1 and C ursor 2; the cursor

currently selected for adjustment is the solid cursor (bottom cursor in Fig-

ure 3--22

+ 3 divisions at 100 mV/div

+ 3 divisions at 20 mV/div

Figure 3- 22: Horizontal cursors measure amplitudes

Cursors are Display-Limited. You cannot move a cursor off screen. Also, if you

resize waveforms, the cursors do not track. That is, a cursor stays at its screen

position, ignoring changes to horizontal and vertical scale and position and to

vertical offset. However, waveform cursors track the waveform point vertically;

they work differently than vertical and horizontal cursors.

Cursors Default to the Selected Waveform. Each cursor measures its source,

defined in the Cursors Setup dialog box. Note the following behavior regarding

source selection:

H When cursors are first turned on, the instrument automatically assigns them

to use the waveform currently selected on screen as the source for each

What Sources

Can I Measure?

Keys to Using Cursors

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Tektronix CSA8000B User Manual Page 160