SDA Operator’s Manual
Enhanced Resolution (ERES) Setup
1. In the menu bar, touch Math, then Math Setup... in the drop-down menu.
2. Touch a function tab F1 through Fx [The number of math traces available depends on the
software options loaded on your scope. See Specifications.].
3. Touch inside the Operator1 data entry field.
4. Select ERES from the All Functions or Filter group of Math functions.
5. Touch the Trace On checkbox.
6. Touch the "ERES" tab in the right-hand dialog, then touch inside the bits field and make an
"Enhance by" selection from the pop-up menu
.
Waveform Copy
The Copy math function makes a copy of your present waveform in its unprocessed
state. While processing may continue on the original waveform, the copy enables faster
throughput in some cases by preserving the original data. That is, no calculations need to be
undone on the copy before additional math can be calculated.
This benefit of faster throughput, however, comes at the expense of memory usage.
Waveform Sparser
The Sparse math function allows you to thin out an incoming waveform by skipping
points at regular intervals, and by starting acquisition at a particular "offset" (point). The Sparsing
factor specifies the number of sample points to reduce the input waveform by. A sparsing factor
of 4, for example, tells the scope to retain only one out of every 4 samples. A Sparsing offset of
3, on the other hand, tells the scope to begin on the third sample, then skip the number of
samples specified by the sparsing factor (4). In this way, the sample rate is effectively reduced.
For the sparsing factor (interval), you can set a value from 1 to 1,000,000 points. For the sparsing
offset you can set a value from 0 to 999,999.
Note: The maximum sparsing offset that can be entered for any sparsing factor equals Sparsing Factor 1.
SDA-OM-E Rev H 187
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