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One trace must be stored in the memory before setting the method of trace operation or performing any kind of trace operation. trace
operation is a kind of vector operation based on plural data before display formatting. It is set in the following method.
Menu path: [Analysis] > [Memory] > [Math/Memory...]. Then the operation/storage dialog box will appear.
Fig. 3.46 Setting of Trace Operation
2) Math/Memory dialog box
a) [Data > Memory] button
Save the current measurement data into the memory.
b) [Trace View Options] box
The [Trace View Options] box is used to select the type of trace operation. The analyzer supports the following operations.
Data
No mathematical operation.
Data+storage
The displayed trace data are the measured data plus stored trace data.
Data-storage
The displayed trace data are the measured data minus stored trace data. This function can be used for simple correction of errors. At
first, store the measured vector error into the memory, and then reduce the measurement data of the tested device by the measured
error.
. Data * storage
The displayed trace data are the measured data multiplied by the stored trace data.
Data/storage
The displayed trace data are the measured data divided by the stored trace data. This function is mainly used to measure the ratio,
such as the gain and attenuation.
c) Data display selection zone
[Data trace] option box
Only display the data trace.
[Memory trace] option box