Agilent Technologies 4294A Operating Manual page 203

To:
Monitor the dc bias voltage level
Monitor the dc bias current level
Step 5. If the sweep cycle is currently in the hold state, specify the number of sweep cycles (see
"Specifying Sweep Times and Stopping Sweep" on page 114) and then start testing the
DUT by specifying the trigger source (see "Selecting a Method to Start Measurement
(Trigger Source)" on page 111). Alternatively, you can use the continuous sweep mode by
implementing a free run trigger.
NOTE
Marker-based level monitoring takes effect when you start a new sweep cycle after turning
on the dc bias level monitor feature.
Step 6. Press the
it is not already displayed.
Step 7. Press the
Step 8. Traces A and B are each associated with a field called "Marker Statistics/Trace Bandwidth
Analysis" that is used to display the dc bias level monitored at the marker position when
the corresponding trace is active. To activate Trace A or B, press the appropriate key:
To activate:
Trace A
Trace B
Step 9. To set up marker-based level monitoring, press one of the following keys:
To:
Turn off marker-based level monitoring
Monitor the dc bias voltage level
Monitor the dc bias current level
NOTE The setting you select for marker-based monitoring must match the setting for dc bias level
monitoring (step 4).
Step 10. Move the main marker to your desired measuring point on the trace. The Marker
Statistics/Trace Bandwidth Analysis field for the activate trace indicates the test signal
level monitored at the marker position.
NOTE Marker-based monitoring works using the same mechanism as, but provides level values in
higher resolution (more digits) than, real-time monitoring (described in "Monitoring the dc
Bias Level on a Real-time Basis" on page 193).
Although marker-based level monitoring uses separate display fields for Traces A and B, it
does not depend on the active trace and provides the same level value regardless of which
Chapter 7
Setting Up the Display of Measurement Results
key to display the Utility menu. The main marker appears on the trace if
[Utility]
key to display the Level Monitor menu.
LEVEL MON [ ]
Monitoring the dc Bias Level
Press:
VOLT
CURRENT
Press:
[A]
[B]
Press:
OFF
DC-V
DC-I
195