Analyzing Data on the Trace Using the Marker

• About Marker Functions

• Reading Marker Values on Trace

• Reading Relative Value from Reference Point on Trace

• Reading Actual Measurement Point/Value Interpolated between Measurement Points

• Setting up Markers for Each Trace/Setting up Markers for Coupled Operation between Traces

• Listing Marker Values in All Displayed Channels

• Specifying Display Position of Marker Values

• Aligning Marker Value Display

• Displaying All Marker Values for Displayed Traces

Other topics about Data Analysis

About Marker Functions

The marker can be used in the following ways:

• Reading a measured value as numerical data (as an absolute value or a relative value from the reference point)

• Moving the marker to a specific point on the trace (marker search)

• Analyzing trace data to determine a specific parameter

• Using the value of the marker to change the stimulus (sweep range) and scale (value of the reference line)

For the procedure used to change the sweep range and scale by using the marker, refer to Setting the Sweep Range Using the Marker and Setting the value of a reference line using the marker.

The E5071C is capable of displaying up to 10 markers including the reference marker on each trace. Each marker has a stimulus value (the value on the X-axis in rectangular display format) and a response value (the value on the Y-axis in rectangular display format). The Smith chart and polar formats each have two marker response values (log amplitude and phase).

Reading Marker Values on Trace

You can read the value of a marker displayed on the trace.

In rectangular display format, the marker response value is always in the same data format as that of the Y-axis. On the contrary, one format for the marker response values (two values: main and auxiliary) can be selected from among several types. The selection is performed in the data format.

For setting up data formats, refer to Selecting a Data Format.

Activating the marker on the Trace

1. Press Channel Next/Channel Prev keys to activate the channel on which a marker is used.

2. Press Trace Next/Trace Prev to activate the trace on which a marker is used.

3. Press Marker key. At this point, marker 1 is turned on and becomes active (you can operate the marker). When using marker 1, you can omit the next step.

4. Select a marker and turn it on. The softkey used to turn on a marker is also used to activate that marker.

Moving the marker

1. Change the marker stimulus value. This operation enables you to move the marker to a point on the selected trace.

2. Read the marker stimulus value and marker response value displayed in the upper-left part of the trace screen.

Turning off the marker

1. Press Marker key.

2. Click Clear Marker Menu and then click one of the options.

3. In the preset configuration, the marker settings on traces in a channel are coupled (Marker Couple is turned on). For marker coupling, refer to Setting up markers for each trace/Setting up markers for coupled operations between traces.

Reading Relative Value from Reference Point on Trace

You can convert the marker reading into a relative value from the reference point.

Converting From a Reference Point to a Relative Value

1. Activate the reference marker.

2. Move the reference marker at the point to be used as the reference.

3. Click Ref Marker Mode to turn on the reference mode.

4. With the reference mode turned on, the stimulus values and response values are indicated in relative values referred to by the position of the reference marker.

5. Activate your desired marker, then move it to your desired position.

6. Pressing Marker and then clicking Ref Marker enables you to place the reference marker at the position of the currently active marker The marker on a trace that can be repositioned either by front panel controls or by programming commands . The reference mode will then turn on automatically.

Reading Actual Measurement Point/Value Interpolated between Measurement Points

The point on the trace on which a marker can be placed differs depending on how the discrete marker mode is set up.

Turning Discrete Mode On or Off

1. Press Channel Next/Channel Prev keys and Trace Next/Trace Prev to activate the trace on which the discrete mode is set up.

2. Press Marker Fctn key.

3. Click Discrete to turn the discrete mode on or off.

Setting up Markers for Each Trace/Setting up Markers for Coupled Operation between Traces

Makers can be set up and moved either in coupled operation for all traces in a channel or independently for each trace.

Turning Marker Coupling On or Off

1. Press Channel Next/Channel Prev keys to activate the channel on which the marker couple will be set.

2. Press Marker Fctn key.

3. Click Couple to turn the marker coupling on or off.

Listing all Marker Values in all Displayed Channels

You can list all of the marker values in all of the displayed channels on the screen.

Turning On the Marker Table Display

1. Press Marker Fctn key.

2. Click Marker Table to turn on the marker table display.

The marker table appears in the lower part of the screen.

Specifying Display Position of Marker Values

This section describes how to specify the marker value display position for each active trace.

Operational procedure

1. Press Channel Next/Channel Prev keys to activate the channel for which you want to set marker coupling.

2. Press Marker Fctn key.

3. Click Annotation Options.

4. Click Marker Info X Pos to set the horizontal display position.

5. Click Marker Info Y Pos to set the vertical display position.

Aligning Marker Value Display

This section describes how to align maker value displays.

1. Press Marker Fctn key.

2. Click Annotation Options.

3. Click Align to toggle ON/OFF.

Displaying All Marker Values for Displayed Traces

This section describes how to display all marker values for displayed traces.

1. Press Marker Fctn key.

2. Click Annotation Options.

3. Click Active Only to toggle ON/OFF.