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Chapter 1 Generating Functions with the NI 5401
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National Instruments Corporation 1-13 NI 5401 User Manual
You can also load a custom waveform pattern with VirtualBench-FG. This
waveform should be a text file and should contain exactly 16,384 samples.
If the defined waveform does not contain exactly 16,384 samples, you may
see undesired effects in your waveform output. Follow these steps to load a
custom waveform:
1. Select File»Load Waveform to bring up the dialog box shown in
Figure 1-9.
Figure 1-9. VirtualBench-FG Load Waveform Dialog Box
2. Specify the delimiter used in the text file, the number of columns, the
start line, and the number of samples.
3. Click OK to return to the main VirtualBench-FG screen shown in
Figure 1-6.
4. Click the User button to use the information in the text file as the
source for the waveform.
5. Click the On button to generate the waveform.
Generating Multiple Frequencies in a Sequence
If desired, you can generate multiple frequencies in a sequence, which can
include frequency sweeping, hopping, and so on. You can list up to 512
different frequencies and specify the duration of generation for each of