User manual

Reference Waveforms
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208User Manual 1316.0827.02 ─ 06
7 Reference Waveforms
7.1 Working with Reference Waveforms
You can configure up to four reference waveforms to display stored waveforms. Any
active signal or mathematical waveform can be stored as a reference waveform. It can
then be loaded again later to restore the waveform on the screen.
To display a reference waveform
Reference waveforms can be displayed in addition to the signal waveforms.
1. In the "Math" menu, select "Reference Waveform > Setup", or press the REF key.
2. Select the tab for the reference waveform you want to display ("Ref1"-"Ref4").
3.
Load a stored reference waveform as described in "To load a reference wave-
form" on page 209, or select a source to be displayed as a reference:
a) In the "Reference" tab, tap the "Selected source" icon and select a source from
the selection list. The source can be any active signal, math, or other reference
waveform.
b) Tap the "Update with" button to update the current reference waveform with the
source data.
4. Tap the "Show reference waveform" icon so it is highlighted.
The reference waveform is displayed on the screen.
5. A reference waveform can have its own scaling settings or it can be scaled according
to the source settings. By default, the scaling of the reference waveform is coupled
to the source settings. Additionally, it can be stretched or compressed in vertical and
horizontal direction.
If necessary, change the settings on the "Scaling" tab of the "Reference Waveform"
dialog box. The original source waveform settings are displayed in the "Original
Attributes" tab. To restore the original settings, tap the "Restore settings" button.
For a description of the scaling settings, see chapter 7.2.2, "Scaling", on page 211.
To save a reference waveform
1. In the "Math" menu, select "Reference Waveform > Setup", or press the REF key.
Tip: Alternatively, you can save a waveform as a reference waveform in the "File"
dialog box, see chapter 12.1.2, "Saving and Loading Waveform
Data", on page 345.
2. Select the tab for the reference waveform you want to store ("Ref1"-"Ref4").
3.
Display and configure the reference waveform as described in "To display a reference
waveform" on page 208.
Working with Reference Waveforms