Agilent Technologies ENA Series Guía de usuario descargar pdf (Pagina 281)

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Chapter 6 275

Data Analysis

Comparing Traces/Performing Data Math

6. Data Analysis

Comparing Traces/Performing Data Math

Each of the traces for which measured data is displayed is provided with an additional

trace, called a memory trace, that temporarily stores measured data. You can use the

memory trace to compare traces on the screen or to perform complex data math between

the memory trace and measured data.

The following data math operations are available:

Performing Data Math Operations

Step 1. Press (or ) and (or ) to activate the trace to

be stored in memory.

Step 2. Press .

Step 3. Press

Data → Mem to store the measured data in memory.

Step 4. Press

Data Math.

Step 5. Select the data math operation to perform.

Step 6. Press

Display.

Step 7. Select the type of data to display on the screen.

Data / Memory Divides the measured data by the data in the memory trace. This

function can be used to evaluate the ratio of two traces (e.g., evaluating

gain or attenuation).

Data * Memory Multiplies the measured data by a memory trace.

Data − Memory Subtracts a memory trace from the measured data. This function can be

used, for example, to subtract a vector error that has been measured and

stored (e.g., directivity) from data subsequently measured on a device.

Data + Memory Adds the measured data and the data in the memory trace.

Softkey Function

OFF Turns off data math functions (Do not perform data math)

Data / Mem Divides measured data by memory trace and stores result in data trace

Data * Mem Multiplies data trace by memory trace and stores result in data trace

Data − Mem Subtracts memory trace from data trace and stores result in data trace

Data + Mem Adds data trace and memory trace and stores result in data trace

Softkey Function

Data Displays only data trace on the screen

Mem Displays only memory trace stored by Data → Mem operation on the

screen

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