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Chapter 3 Features and Functions
Arbitrary Waveforms
5 Select the interpolation method.
Press the Interp softkey to enable or disable linear interpolation between
waveform points (this feature is available from the front panel only).
With interpolation enabled (default), the waveform editor makes a
straight-line connection between points. With interpolation disabled,
the waveform editor maintains a constant voltage level between points
and creates a "step-like" waveform.
For this example, turn on linear interpolation.
6 Set the initial number of waveform points.
You can create an arbitrary waveform with up to 16,384 (16K) points
from the front panel. The waveform editor initially builds a waveform
with two points and automatically connects the last point of the
waveform to the voltage level of the first point to create a continuous
waveform. Press the Init # Points softkey to specify the initial number of
waveform points (you can add or remove points later if necessary).
For this example, set the initial number of points to "4".
7 Start the point-by-point editing process.
Press the Edit Points softkey to accept the initial waveform settings and
begin point-by-point editing. The status line at the top of the display
window shows the point number at the left, the time value of the current
point in the center, and the voltage value of the current point to the right.
8 Define the first waveform point.
Press the Voltage softkey to set the voltage level for Point #1 (this point
is fixed at a time of 0 seconds). By default, Point #1 is set equal to the
upper limit.
For this example, set the voltage level of Point #1 to 0 V.
The waveform editor performs all amplitude calculations using Vpp,
rather than Vrms or dBm.
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