Saving Waveforms and Setups
3–114 TDS 684A, TDS 744A, & TDS 784A User Manual
Saving and Recalling WaveformsTDS Oscilloscope provides four internal reference memories in any of which you
can store a waveform. Waveform thus stored are retained even when you turn the
oscilloscope off or unplug it. The oscilloscope also can save waveforms to
floppy disk. This subsection describes how to save, delete, and display reference
waveforms.
The oscilloscope can display up to 11 waveforms at one time. That includes
waveforms from the four input channels, four reference waveforms, and three
math waveforms. You can save any combination of different size waveform
records.
You will find saving waveforms useful when working with many waveforms and
channels. If you have more waveforms than you can display, you can save one of
the waveforms and then stop acquiring it. By doing so, you free an input channel
to display another waveform without losing the first one.
To save a waveform, do the following steps:
1. Select the channel that has the waveform you want to save.
STOP. Before doing step 2 that follows, note that if you choose a reference
memory location labeled active (see Figure 3–66), you will overwrite the
waveform that was previously stored there. You can store waveforms in reference
locations labeled empty without disturbing previously stored waveforms.
2. To store a waveform internally, press SAVE/RECALL WAVEFORM ➞
Save Wfm (main) ➞ To Ref1, To Ref2, To Ref3, or To Ref4 (side).
3. To store a waveform to disk, press To File (side). Then use the general
purpose knob to select the exact file from the resulting scrollbar list. Finally,
press Save To Selected File (side) to complete the operation.
NOTE. Upon power on, the oscilloscope creates the “wild card” file
TEK?????.WFM for storing waveforms. Selecting this file in step 3 stores a
waveform in a uniquely named, sequentially numbered file. For instance, the
oscilloscope saves the first waveform you save in the file TEK00001.WFM, the
second in TEK00002.WFM, and so on.