The Waveform Graph - Racal Instruments 3155 User Manual

100ms/s arbitrary waveform generator
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The Waveform
Graph
3-40 ArbConnection
Waveforms are created and edited on the waveform graph. Figure 3-
17 shows an example of a waveform created using the equation
editor and the anchors to limit generation of the waveform between
points 100 and 900. The elements of the waveform graph are de-
scribed below.
The waveform screen has two axes – vertical and horizontal. Both
axes are divided into points.
The vertical axis is labeled from –8192 through 8191 for a total of
16,384 point. This number represents 14 bits of vertical resolution.
The horizontal axis by default has 1000 points (from point 0 to 999).
This number can be changed using the Wave Length field on the
Toolbar. The wave composer lets you define the horizontal axis to a
maximum size of 1,048,575.
Figure 3-46, The Waveform Screen
Notice on the left and right top of the graph there are two triangles
pointing to the center of the screen. These are the anchors. The an-
chors are used as the start and end pointers to where the waveform
is created. For example, to create a sine waveform between point
100 and point 500, place the left anchor at point 100 and the right
anchor at point 500 and then generate a sine from the built-in library.
There are two ways to control anchor placements.
User Manual 3155

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