Keysight Technologies 6811C Programming Manual page 232

5 Programming Examples
The clipping level is the percentage of the peak amplitude at which clipping
occurs.
The clipping level can also be specified in terms of the percent total harmonic
distortion in the clipped sine waveform by adding a THD suffix to the command.
For example,
sets the clipping level so that the clipped sine has 10% distortion.
User-defined waveform
To create a user-defined waveform, use TRACe:DEFine command to create a
name for the waveform, then use the TRACe[:DATA] command to send the list of
1024 amplitude points. The waveform can then be selected using the FUNCtion
command. For example, a waveform named "Distortion" can be created with:
where n1 ... n1024 are the data points that define the relative amplitudes of
exactly one cycle of the waveform. The first data point defines the amplitude that
will be output at 0 degrees phase reference.
Data points can be in any arbitrary units. The ac source scales the data to an
internal format that removes the DC component and ensures that the correct AC
rms voltage is output when the waveform is selected. When queried, trace data is
returned as normalized values in the range of 1. Waveform data is stored in
non-volatile memory and is retained when input power is removed. Up to 12 user
defined waveforms may be created and stored.
Because waveform shape commands are coupled with the voltage commands,
NOTE
changing waveforms without changing the programmed voltage may result in
an error if the resulting peak voltage amplitude exceeds the maximum voltage
rating of the ac source. Refer to
information.
232
FUNCtion:SHAPe:CSINusoid 10 THD
TRACe:DEFine DISTORTION
TRACe:DATA DISTORTION, n1, n2, n3, ..., n1024
Keysight Models 6811C, 6812C, and 6813C Programming Guide
"Coupled commands" on page 235 for more