Setting Channels and Traces

Other topics about Setting Measurement Conditions

Overview of Channel and Trace

The E5061B allows you to setup multiple channels to perform measurement under different stimulus conditions.

As multiple traces (measurement parameters) can be displayed for each channel, no feature is provided to link the stimulus conditions between channels, and each channel is always independent of the others. In other words, you need to set the measurement conditions and execute calibration for each channel you use for measurement.

When you set items whose setting target is channels/traces (refer to Parameter setting for each setup item), the target is the selected (active) channel/trace. You can specify only the displayed channels/traces as active channels/traces. Therefore, set the display of channels/traces before setting the measurement conditions.

Setting Parameter for each Setup Item (Analyzer, Channel, Trace)

The following table lists the setting parameters and indicates the setup item (analyzer, channel, or trace) that each parameter controls along with the applicable setup key(s).

Parameter

Controlled Setup Items

Setup Key(s)

Analyzer

Channel

Trace

Stimulus Settings

 

Sweep range

 

x

 

Start, Stop, Center, Span

Power, CW frequency

 

x

 

Sweep Setup > Power

Sweep time/Sweep delay time

 

x

 

Sweep Setup > Sweep Time, Sweep Delay

Number of points

 

x

 

Sweep Setup > Points

Segment sweep

 

x

 

 

Sweep Setup > Sweep Type, Edit Segment Table, Segment Display

DC Bias

 

x

 

Sweep Setup > Sweep Type

Trigger Settings

 

Trigger mode

 

x

 

Trigger > Hold/Single/ Continuous

 

 

 

Hold All Channels/Continuous Disp Channels

Trigger source, Trigger Event, Trigger Scope

 

 

Trigger > Trigger Source, Trigger Event, Trigger Scope

Trigger

x

 

 

Trigger > Restart/Trigger

Ext Trigger Input, Trigger Delay

x

 

 

Trigger > Ext Trig Input, Trigger Delay

Ext Trigger Output, Polarity, Position, Pulse Width

x

 

 

Trigger > Ext Trig Output, Polarity, Position, Pulse Width

Response Settings

 

Measurement parameter

 

 

x

Meas

Data format

 

 

x  

Format

Scale, Electrical delay, Phase offset

 

 

x

Scale

 

Memory trace and data math

 

 

x

Display > Display/Data-> Mem/ Data Math

Equation Editor

 

x

 

Display > Equation Editor/Equation  (ON/OFF)

Window title

 

 

Display > Edit Title Label/ Title Label (ON/OFF)

Graticule label in rectangular form

 

 

Display > Graticule Label (ON/OFF)

Color inversion

x

 

 

Display > Invert Color

Frequency display

x  

 

 

Display > Frequency (ON/OFF)

Display update

x  

 

 

Display > Update (ON/OFF)

Averaging

 

x

 

Avg > Averaging Restart/ Avg Factor/Averaging (ON/OFF)

Averaging Trigger

x

 

 

Avg > Avg Trigger  (ON/OFF)

Smoothing

 

 

x

Avg > Smo Aperture/  Smoothing (ON/OFF)

IF bandwidth, IF BW Auto, IF BW Auto Limit

 

x

 

Avg > IF Bandwidth, IFBW Auto, IFBW Auto Limit

Calibration

 

x

 

Cal

System Impedance

x

 

 

Cal > Set Z0

Marker

 

 

x

Marker, Marker Search, Maker Fctn

Market Table

x

 

 

Maker Fctn > Maker Table

Analysis

 

Time domain, Fault Location,

 

 

x

Analysis > Gating, Fault Location

SRL

 

x

 

Analysis > SRL

Parameter conversion

 

 

x

Analysis > Conversion

Limit test, Ripple Test, Bandwidth Test

 

 

x

Analysis > Limit Test, Ripple Test, Bandwidth Limit

Saving and recalling data

x

 

 

Save/Recall

Macro

x

 

 

Macro Setup, Macro Run, Macro Break

System

 

Printing/Saving display Screen/Beeper/GPIB settings/Network Settings/Date & Time/Key Lock/Backlight/Firmware Revision/Service menu

x

 

 

System

Preset

x

 

 

Preset

Number of Channels/Traces

The number of channels and the number of traces are 4. The maximum number of points is 1601.

Setting Channel Display (Layout of Channels)

The measurement result for each channel is displayed in its dedicated window (channel window). You cannot have a single window to display the measurement results from more than one channel. This means that the setting of the window layout determines the number of channels displayed on screen.

The procedure for setting the window layout is as follows:

  1.  Press Display > Allocate Channels.

  2.   Press the desired softkey to select the window layout.

Setting Trace Display

Setting the number of traces

Depending on the measurement parameters of the traces displayed for each channel, the sweep necessary for each channel is executed. For more information, refer to Sweep Order in Each Channel.

You specify the trace display by setting the number of traces (upper limit of displayed trace numbers). For example, if you set the number of traces to 3, traces 1 through 3 are displayed.

The procedure for setting the number of traces is as follows:

  1.    Press Channel Next (or Channel Prev) to select the channel for which you want to set the number of traces.

  2.    Press Display > Number of Traces.

  3.    Press the desired softkey to set the number of traces.

Setting trace layout (graph layout)

Traces are laid out and displayed in the order of the trace number from graph 1 according to the graph layout in the channel window.

You can select the graph layout from the windows layout.

If the number of traces is less than the number of graphs, nothing is displayed in the remaining area. If the number of traces you set exceeds the number of graphs, excess traces are superimposed from the first graph. For example, if you select as the graph layout and set the number of traces to 4, graph 1 (Gr1 in Graph layout) display traces 1 and 4, respectively, by superimposing, and graph 2 (Gr2 in Graph layout) and graph 3 (Gr3 in Graph layout) displays trace 2 and trace 3 as shown in the figure below.

The procedure for setting the graph layout is as follows:

  1. Press Channel Next (or Channel Prev) to select the channel for which you want to set the graph layout.

  2. Press Display > Allocate Traces.

  3. Press the desired softkey to select the graph layout shown below.

Graph Layout

 

Active Channel

The active channel is the one whose settings can currently be changed. The window frame of the active channel is displayed brighter than the window frames of the other channels. To change the settings specific to a certain channel, you must first activate the channel.

To change the active channel, use the following hardkeys:

Hardkey

Function

Channel Next

Change the active channel to the next channel with the larger channel number.

Channel Prev 

Change the active channel to the previous channel with the smaller channel number.

Active trace

The active trace is the one whose settings can currently be changed. The trace name on the screen (for example, Tr2) of the current active trace is highlighted and indicated with to the left. To change the settings specific to a certain trace, you must first activate the trace.

To select the active trace, use the following hardkeys:

Hardkey

Function

Trace Next

Change the active trace to the next trace with the larger trace number.

Trace Prev 

Change the active trace to the previous trace with the smaller trace number.